2026-10-20T22:55:28Z https://nostr.now Thalia Archibald https://nostr.now/npub1thrmps439tzkcx72uft5deu389rt39pdjxy6uvdrfw035t0jcrdsulw4nm https://cdn.discuss.systems/accounts/avatars/115/918/347/060/720/003/original/caf1f9d7ce449c5a.jpg https://cdn.discuss.systems/accounts/avatars/115/918/347/060/720/003/original/caf1f9d7ce449c5a.jpg https://nostr.now/nevent1qqsg3l6z2wmamdkhnar59msjsch696q42tskd8qz3l5xmsmqdzxpzxszypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdketux34 In reply to <a href='/nevent1qqs08jhvaxn2xttzpaxtunn8wc57kdjdxaafxmyx6jqy22wfzylne2s0g5s5n'>nevent1q…5s5n</a><br/>_________________________<br/><br/>Monotone! I read up on the internals of SVN, CVS, RCS, SCCS, BitKeeper, and TLIB while building a history-to-Git transformer, but haven&#39;t run into any projects that used Monotone, so haven&#39;t needed to read up on it. 2026-10-28T18:04:58Z https://nostr.now/nevent1qqs8f8k5hf3zrwpv0hgtr4ahw6ymwf7r6an9fuq6mtm2vn8ks3563sczypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk0690kh In reply to <a href='/nevent1qqst0t5rvgesfrzwapxrj4nz6ypj37wck87u4zkf7jfsfdqxa7lxlwctsqpqq'>nevent1q…qpqq</a><br/>_________________________<br/><br/>I wish the reflog was a first-class object pushed to forges, so refs would have a history (a history of histories!). Refs are one of the few mutable components in Git. 2026-10-28T17:35:51Z https://nostr.now/nevent1qqs8f80j4cfdefys5hkqqhevkrnceqk4ygqsdrvtfmu6dxfddlvcxjszypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdka5h6f3 In reply to <a href='/nevent1qqsr0e59w68swnv9v3xa72f92l6ylrhw8sv77v8x5l08s7a0m8ejp9gjhmqva'>nevent1q…mqva</a><br/>_________________________<br/><br/>Cozy. Looks like you got the album four days early too? 2026-10-27T00:14:26Z https://nostr.now/nevent1qqsrypp5j5275t43s46w4s3qd3zs40n22n5hsdh00rxlnfpc5r9e6fszypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdktxe3tp In reply to <a href='/nevent1qqswg2938d5pl7qjw6dlleuf56da4hxg5g0xa8qqtq0yx8d32ahm63c2zq6ur'>nevent1q…q6ur</a><br/>_________________________<br/><br/>You&#39;ve heard of Y2K and the 2038 problem, but what about the 1975 problem?<br/><br/>The UNIX form letter generator converts the current date to a string, but it only handles 1974. Why isn&#39;t it more general?<br/><br/>Well, the form utility was written around 1971 when UNIX used a different unit for time, jiffies (60ths of a second) since the current year instead of seconds since 1970. This 60× precision caused times to overflow a signed 32-bit integer every 13.6 months, so the epoch was bumped yearly. This yearly ritual of modifying the kernel meant it wasn&#39;t worth generalizing to support any year.<br/><br/>An earlier version of form uses jiffies since a 1972 epoch. The version from UNIX V4–V6 does the bare minimum to update it to the new system of seconds since 1970, while keeping the yearly overflow.<br/><br/>#unix #retrocomputing #vintagecomputing 2026-10-24T21:48:20Z https://nostr.now/nevent1qqswg2938d5pl7qjw6dlleuf56da4hxg5g0xa8qqtq0yx8d32ahm63czypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkwft86p In reply to <a href='/nevent1qqsd3ugfn5sygyjqpn6d2xxemw8np0sckp5l4dy0tk65fu6c599qgjseh92wa'>nevent1q…92wa</a><br/>_________________________<br/><br/>Throughout this process, I fixed about a dozen bugs in the original assembly program and many other small issues. It seems it was less tested than the assembler, my last porting project, which had impressively few bugs in its 3,583 lines of assembly.<br/><br/>6/6 2026-10-16T04:40:57Z https://nostr.now/nevent1qqsd3ugfn5sygyjqpn6d2xxemw8np0sckp5l4dy0tk65fu6c599qgjszypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkc2940y In reply to <a href='/nevent1qqsryzvgm4cdt873dzr8kfyysjwwk6am6rm8847g72cc08f645xy39qrwyu6q'>nevent1q…yu6q</a><br/>_________________________<br/><br/>My process of reverse engineering this was quite methodical.<br/><br/>Since it is hand-written assembly, it employs numerous clever tricks, global program knowledge, and ad hoc calling conventions for every function.<br/><br/>Many functions have straightforward dataflow and a clear calling convention. Some require examining the demanded registers across all callers, to determine whether a register is written or clobbered.<br/><br/>But a nightmarish trio of functions are mutually recursive. To correctly analyze these, I annotated points with the register and stack state. Loops merge states on backedges, branches merge states on join. So far so good; this logic remains relatively local.<br/><br/>At recursive calls, I&#39;d initially assume the call would update all state and I&#39;d represent this with fresh values for all registers. This lets me do a dataflow analysis as usual. But some of these fresh values were observed, so I couldn&#39;t stop yet, as a full fixpoint was required. I repeatedly propagated constraints between the functions until the calling conventions were fully resolved.<br/><br/>Yes, I did this by hand. Yes, I&#39;m crazy.<br/><br/>I&#39;m working on a decompiler for PDP-11 assembly to period-appropriate C, but I haven&#39;t finished it yet, so I instead played as the static analyzer.<br/><br/>5/6<br/><br/>#programminglanguages #reverseengineering 2026-10-16T04:40:50Z https://nostr.now/nevent1qqsryzvgm4cdt873dzr8kfyysjwwk6am6rm8847g72cc08f645xy39qzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkwjwvtt In reply to <a href='/nevent1qqsy6qk73qq7y5qyf6r9vrk2z0483euww3fg3hhfh5eqgzc0n9lpc9g7z2vk4'>nevent1q…2vk4</a><br/>_________________________<br/><br/>But why does form/fed implement an allocator? Now, we&#39;d just load all the key/value pairs into memory, process, and dump, especially for a database so small. But memory was expensive and the PDP-11/20 had only 56KB.<br/><br/>Instead, it uses a file as the backing store and reads 512-byte blocks on demand, caching up to four of them, and flushing when evicted. It implements a buddy allocator with a full suite of functions, including coalescing and resizing. This was well before the standard library started to take form, so it was all bespoke to form/fed.<br/><br/>4/6 2026-10-16T04:39:34Z https://nostr.now/nevent1qqsy6qk73qq7y5qyf6r9vrk2z0483euww3fg3hhfh5eqgzc0n9lpc9gzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkawgdpk In reply to <a href='/nevent1qqsdculd6uun0uuwjrgxx26l926qn7we426fjftd09pfrtf89qqhcfsk5zstq'>nevent1q…zstq</a><br/>_________________________<br/><br/>Now that I understand it fully, I&#39;ll build a forensic analysis tool in Rust to recover prior versions of the database by reversing allocator operations.<br/><br/>Much information is leaked through the slack data in freed blocks, the string copying patterns, and the ordering of the free lists. I hope to be able to construct a tree of possible operations that could have produced a form letter database.<br/><br/>With this, I may be able to refine my estimate of when UNIX was requested by the U.<br/><br/>3/6 2026-10-16T04:39:19Z https://nostr.now/nevent1qqsdculd6uun0uuwjrgxx26l926qn7we426fjftd09pfrtf89qqhcfszypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk3d6vuf In reply to <a href='/nevent1qqsga3hddd6080kmyexr4s4f4v567qwk255uglhycxatetct6a42tgcx2mn8l'>nevent1q…mn8l</a><br/>_________________________<br/><br/>Most notably, the oldest list of UNIX licensees was produced from a form letter database.<br/><br/>Ken Thompson used form/fed to simplify mailing to early users: rather than hand- or typewriting messages, this fancy tool would substitute each recipient and the date. In 1975, when UNIX News was starting up, he used this form letter database to dump the list of contacts that served as the initial subscriber list.<br/><br/>The circumstances of the UNIX V4 tape found at the University of Utah are still somewhat unclear, as it was apparently not used for research and only sparse traces of its acquisition survived. But some letters to Martin Newell are in that form letter database and I hope to recover more information through forensic analysis.<br/><br/>2/6<br/><br/>#unix #retrocomputing #vintagecomputing 2026-10-16T04:38:53Z https://nostr.now/nevent1qqsga3hddd6080kmyexr4s4f4v567qwk255uglhycxatetct6a42tgczypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkrlscjm In reply to <a href='/nevent1qqsr8xzplm0s0xkquugglac67dmzk0pkqtndt0x5khxwe8krsn5mpaqpsudur'>nevent1q…udur</a><br/>_________________________<br/><br/>Whew! I just finished porting 2,852 lines of PDP-11 assembly to C by hand over the past week!<br/><br/>This is for form/fed, a form letter editor and generator with template substitutions, introduced in 1971. It&#39;s the largest UNIX utility that was never ported to C, and has since been forgotten.<br/><br/>1/6<br/><br/>#unix #retrocomputing #vintagecomputing #reverseengineering 2026-10-16T04:38:32Z https://nostr.now/nevent1qqsr8xzplm0s0xkquugglac67dmzk0pkqtndt0x5khxwe8krsn5mpaqzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkjhtnjt I like finding and fixing bugs in 52-year-old software, especially when all later versions retain the bug.<br/><br/>#unix #vintagecomputing #retrocomputing 2026-10-11T08:55:03Z https://nostr.now/nevent1qqsyc57rfvzcvk8pkejquk7wcx7rvhumckmtagxzyle2rk6fshpvgpczypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkf9amll In reply to <a href='/nevent1qqsypttt2l9wxgj50jjj3fnqurmfgaev2anx39cu9nca7aqvg6kmk9cf8wc5j'>nevent1q…wc5j</a><br/>_________________________<br/><br/>RIP Margaret Hamilton<br/><br/>#nasa #vintagecomputing #retrocomputing<br/> <img src="https://cdn.discuss.systems/media_attachments/files/117/407/971/668/461/784/original/f180469988c7354e.jpeg"> <br/> 2026-10-08T23:53:33Z https://nostr.now/nevent1qqsypttt2l9wxgj50jjj3fnqurmfgaev2anx39cu9nca7aqvg6kmk9czypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkkf5f49 In reply to <a href='/nevent1qqsgkhvtu76d8yknsat7gf85rdx6faq4qtgy7my5s4pytk0s2g0xzsgajm6ma'>nevent1q…m6ma</a><br/>_________________________<br/><br/>Margaret Hamilton, computing pioneer who led the software behind the Apollo program, passed away last week. She advocated for high-assurance software and introduced the term software engineering.<br/><br/><a href="https://news.mit.edu/2026/margaret-hamilton-computing-pioneer-dies-1007">https://news.mit.edu/2026/margaret-hamilton-computing-pioneer-dies-1007</a><br/><br/>#nasa #vintagecomputing #retrocomputing #apollo<br/> <img src="https://cdn.discuss.systems/media_attachments/files/117/401/875/326/918/847/original/d1fc023909de6093.jpeg"> <br/> 2026-10-07T22:11:45Z https://nostr.now/nevent1qqs9wk68etl4ty0qf4vj9q3y0mp72x97y4nypz9a0qrgslgqrjklrzczypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkmrvarg In reply to <a href='/nevent1qqsfpykwlhac5kd6pd78c280h2xpz8kc3r5lnlkmjk6sl72amw55x5g5rj4ng'>nevent1q…j4ng</a><br/>_________________________<br/><br/>A simplified history of regular expressions:<br/><br/>- In 1951, Stephen Kleene invented regular expressions.<br/><br/>- In 1966, Ken Thompson built the first software implementation of regular expressions, in the QED text editor for CTSS. UNIX ed is a cut down version of QED, popularizing the tradition of regular expressions in editors. grep started as a standalone version of the engine from ed. em, ex, vi, and vim evolved from ed.<br/><br/>- In 1987, Larry Wall spread regular expressions to the next generation of programmers through Perl. Gravely, it uses backtracking, spreading terrible performance for decades. It derives its engine from the rn newsreader, which derives it from Gosling Emacs. James Gosling claims he wrote it from scratch.<br/><br/>- In 2010, Russ Cox, having spent time at Bell Labs, rejected backtracking and built RE2, a fast and scalable engine, generalized from work on Google Code Search. Its ideas have spread to Go regexp and Rust regex, a new generation of engines.<br/><br/>- Since 2025, Ian Erik Varatalu has been researching regular expressions for his PhD and has produced a fast engine using derivatives. It implements seldom-included intersection and complement and efficiently implements lookaround. It is faster than all previous engines.<br/><br/>#unix #computerscience 2026-09-22T06:19:27Z https://nostr.now/nevent1qqsfpykwlhac5kd6pd78c280h2xpz8kc3r5lnlkmjk6sl72amw55x5gzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkmnw02c In reply to <a href='/nevent1qqs2rx0kk5p3r7a5zskvynlxjv2cntutr0ejlrdzffq9trkq32h4jrs9jdu30'>nevent1q…du30</a><br/>_________________________<br/><br/>When I read UNIX-HATERS a few years ago, it unexpectedly helped me fill a gap in regular expression history.<br/><br/>In its chapter on Usenet, they complain about Larry Wall&#39;s rn newsreader. It introduced killfiles, which filter emails using regular expressions.<br/><br/>Well, I had incidentally just been researching historical regular expression engines and trying to trace back the development of regular expressions in Perl 1.0. Since Larry Wall created both, it seemed likely that rn influenced Perl. It turned out that Perl adapted the engine from rn and ultimately from James Gosling&#39;s Emacs. Since Perl removed attribution comments, I don&#39;t think this had been established before.<br/><br/>When I revisit that project, I&#39;ll need to update it for what I learned from chatting with James Gosling at SIGGRAPH.<br/><br/><a href="https://github.com/thaliaarchi/regexp-museum/blob/main/viewers/rn.md">https://github.com/thaliaarchi/regexp-museum/blob/main/viewers/rn.md</a><br/><br/>#unix #vintagecomputing #retrocomputing 2026-09-22T04:32:14Z https://nostr.now/nevent1qqs2rx0kk5p3r7a5zskvynlxjv2cntutr0ejlrdzffq9trkq32h4jrszypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkm2hrqv In reply to <a href='/nevent1qqsw25catrfgmey24c79h9vqj8dmfx6f9rl2n0gkah6g0away5tg4tgpax7p6'>nevent1q…x7p6</a><br/>_________________________<br/><br/>For context, this is a draft copy of The UNIX-HATERS Handbook from two years before publication. It was presumably sent to Jay Lepreau for feedback and I think this is the only surviving copy. Jay worked with UNIX throughout his career and it was found among his papers, along with the UNIX V4 tape. I will be scanning it.<br/><br/>Personally, I found the book to be quite a fun read. It&#39;s a bunch of sore losers to UNIX&#39;s success. The anti-forward by Dennis Ritchie is a treat.<br/><br/><a href="https://web.mit.edu/~simsong/www/ugh.pdf">https://web.mit.edu/~simsong/www/ugh.pdf</a> 2026-09-22T04:20:53Z https://nostr.now/nevent1qqsw25catrfgmey24c79h9vqj8dmfx6f9rl2n0gkah6g0away5tg4tgzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkrgvclg I hate UNIX.<br/><br/>#unix #vintagecomputing #retrocomputing<br/> <img src="https://cdn.discuss.systems/media_attachments/files/117/312/180/798/340/287/original/7911554d7c633a63.jpeg"> <br/> 2026-09-22T01:52:04Z https://nostr.now/nevent1qqsd9umj6exthr5lkwftc867df69wxpv7qr5u3y985q546gwh5acekczypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkflgl02 In reply to <a href='/nevent1qqsqjravmejlud7lmx4h7pac8we5y3s3py52zrnacdqmevgmca6t0csplaw50'>nevent1q…aw50</a><br/>_________________________<br/><br/>Do you know anyone in Nebraska who worked for Union Pacific in the &#39;70s–90s or is a ham radio or vintage computing enthusiast? I&#39;m following leads on Teletype equipment used there.<br/><br/>Boosts appreciated.<br/><br/>#vintagecomputing #retrocomputing #teletype 2026-09-14T18:36:27Z https://nostr.now/nevent1qqsqjravmejlud7lmx4h7pac8we5y3s3py52zrnacdqmevgmca6t0cszypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkunayu3 I just acquired a Teletype Model 37 reperforator-transmitter! I&#39;ve been trying to track down a Model 37 for two years now, hitting many dead ends.<br/><br/>Well, this is the paper tape reader/punch that would connect with a regular Model 37 KSR, so it&#39;s not the same thing. But I&#39;ve been wanting to be able to work with paper tape, so it&#39;s still quite exciting. I had never seen such a reperforator before, until I was asked for details on it.<br/><br/>I&#39;ll be hauling it from North Carolina next month and would love to visit vintage computing people. I&#39;m planning on stopping in Chicago and central Nebraska.<br/><br/>#vintagecomputing #retrocomputing #teletype<br/> <img src="https://cdn.discuss.systems/media_attachments/files/117/270/725/424/078/627/original/55fe6ea8fb059ee3.jpg"> <br/> <img src="https://cdn.discuss.systems/media_attachments/files/117/270/725/549/917/334/original/a0acd4e48ee77ef4.jpg"> <br/> <img src="https://cdn.discuss.systems/media_attachments/files/117/270/726/081/948/837/original/32685c03a84125a7.jpg"> <br/> 2026-09-14T18:26:19Z https://nostr.now/nevent1qqs2s2rrl8z9vcwtmjk8f4swhvyq4455naypddxcwm3ymz90uehzunszypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkvyuen2 In reply to <a href='/nevent1qqsvxmqxcuhj2v98dzzqyzydyw59rnp2laxu5zskx599lnydwrcnxyc27ydml'>nevent1q…ydml</a><br/>_________________________<br/><br/>I thought one VCF this year would be good enough for me. I was wrong. VCF PNW is embryonic and I didn’t hear much talk about the others, but VCF MW is massive. 2026-09-12T00:15:58Z https://nostr.now/nevent1qqsvlh03d07w5twhhg86t7s7c3vek5txz7fmn2am3l5v85fnvyj7e6szypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkz3zgq6 In reply to <a href='/nevent1qqs0fpp5h62r58lvvpq8masead6uhcvdahae4ufcz8vjgcnc4436jmgq44g47'>nevent1q…4g47</a><br/>_________________________<br/><br/>I don&#39;t have a terminal that could do this. If I implemented that in the kernel, I&#39;d need to grow the buffer from storing a single line to a page (though the kernel currently has no concept of pages of text). If I implement it in user space, I may as well just implement the more traditional arrow keys cycling through the shell history. 2026-08-27T07:52:28Z https://nostr.now/nevent1qqs8z87mx8e2te5fs6vt83hmruct8qjyxr6gks5gf3mv8swn3t0gd0czypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk88udn4 In reply to <a href='/nevent1qqstzsqfmh7penwk3d7ky4tysju3nhm8cdndq640tr0sxzcpvt0vj9q8vf6f2'>nevent1q…f6f2</a><br/>_________________________<br/><br/>Just modified the UNIX V4 kernel and utilities so it supports backspace for deleting characters. Pressing backspace instead of # was the top mistake made by LRC attendees, so this would make it easier to use for modern users.<br/><br/>The erase (delete last character) and kill (clear current line) characters were fixed to # and @, inherited from Multics, and not made configurable until a few months later around November 1974. Perhaps this change reflects the first time a video terminal was used for UNIX.<br/><br/>I made it send BS SP BS when backspace is pressed to visually clear the character, but this unfortunately makes it clear commands&#39; output too. For example, this lets you visually clear the shell prompt. I could fix this by implementing something like curses, but that would move the logic to user space and incur overhead for swapping the process for a context switch on every character press. This was a complaint of early vi. Maybe I could track the column of the last printed text and not let you visually backspace before that?<br/><br/>#unix #retrocomputing 2026-08-27T06:19:00Z https://nostr.now/nevent1qqstzsqfmh7penwk3d7ky4tysju3nhm8cdndq640tr0sxzcpvt0vj9qzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk4d26wn I fixed a little bug in UNIX V4 that had been bugging me. It took a terminal session of 5596 lines, including all the code I read, to arrive at a 4-line fix. Imagine all the paper.<br/><br/><a href="https://github.com/thaliaarchi/unix-v4-demo/commit/33f294afb9cb48cda9ddbcb159d947d94c4eddd3">https://github.com/thaliaarchi/unix-v4-demo/commit/33f294afb9cb48cda9ddbcb159d947d94c4eddd3</a><br/><br/>#unix #retrocomputing #vintagecomputing 2026-08-27T01:42:06Z https://nostr.now/nevent1qqsxxhc29wpe20p7xv98muateq6lp8arsncgz3dk4dxsgw9t26rv3zgzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk7ywkdj In reply to <a href='/nevent1qqs027upjkfnq7n37avpl7xr67fnqzcevg7ckt6yje9g4ru552ka6mqz8nm80'>nevent1q…nm80</a><br/>_________________________<br/><br/>I was interviewed by SIGGRAPH to promo my talk! I cover some angles of the story here that haven&#39;t fit elsewhere.<br/><br/><a href="https://blog.siggraph.org/2026/07/unix-v4-and-the-utah-teapot-recovering-a-computing-time-capsule.html/">https://blog.siggraph.org/2026/07/unix-v4-and-the-utah-teapot-recovering-a-computing-time-capsule.html/</a><br/><br/>#retrocomputing #vintagecomputing #graphics<br/> <img src="https://fd.discuss.systems/media_attachments/files/116/953/130/361/526/779/original/6e10221f2d23cb45.png"> <br/> 2026-07-20T16:00:57Z https://nostr.now/nevent1qqs027upjkfnq7n37avpl7xr67fnqzcevg7ckt6yje9g4ru552ka6mqzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkthcjf9 In reply to <a href='/nevent1qqs9d23ca2f9g8s7w7pjd76fk2n3gr5g7n7jeyvvxetumrglkd902zqgqdzwh'>nevent1q…dzwh</a><br/>_________________________<br/><br/>My SIGGRAPH paper is now published!<br/><br/><a href="https://dl.acm.org/doi/10.1145/3799885.3816010">https://dl.acm.org/doi/10.1145/3799885.3816010</a><br/><br/>#retrocomputing #vintagecomputing #graphics<br/> <img src="https://fd.discuss.systems/media_attachments/files/116/953/124/821/123/487/original/682187fbc74695df.png"> <br/> 2026-07-20T15:57:53Z https://nostr.now/nevent1qqs9d23ca2f9g8s7w7pjd76fk2n3gr5g7n7jeyvvxetumrglkd902zqzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk5a5xy9 In reply to <a href='/nevent1qqsywz20klsgsmx84cd388uwjrjj08es8jyvy4cgaff3plkwr8pxlcc4l0hje'>nevent1q…0hje</a><br/>_________________________<br/><br/>Utah teapot trivia questions from the SIGGRAPH Papers Fast-Forward:<br/> <img src="https://fd.discuss.systems/media_attachments/files/116/949/621/484/002/071/original/d1ccce072a6f4953.jpeg"> <br/> <img src="https://fd.discuss.systems/media_attachments/files/116/949/621/534/362/889/original/421f925ef09abaa7.jpeg"> <br/> <img src="https://fd.discuss.systems/media_attachments/files/116/949/621/579/743/296/original/4bc3d95526661313.jpeg"> <br/> <img src="https://fd.discuss.systems/media_attachments/files/116/949/621/619/919/035/original/9072cb4ca35b4cc7.jpeg"> <br/> 2026-07-20T01:07:31Z https://nostr.now/nevent1qqsywz20klsgsmx84cd388uwjrjj08es8jyvy4cgaff3plkwr8pxlcczypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkcqcc4s In reply to <a href='/nevent1qqsx4kl4ulxf5guezftqhqrytpfdssymfhwwj7kh7vwufwrar77z9zqkmq0r0'>nevent1q…q0r0</a><br/>_________________________<br/><br/>2026 is the year of the Utah teapot:<br/> <img src="https://fd.discuss.systems/media_attachments/files/116/949/617/988/491/093/original/eaab65646648ec98.jpeg"> <br/> 2026-07-20T01:06:17Z https://nostr.now/nevent1qqsx4kl4ulxf5guezftqhqrytpfdssymfhwwj7kh7vwufwrar77z9zqzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkm3jpfm My talk was teased in SIGGRAPH for Beginners!<br/> <img src="https://fd.discuss.systems/media_attachments/files/116/949/598/436/769/133/original/ac0432c6564f7d46.jpeg"> <br/> 2026-07-20T01:03:46Z https://nostr.now/nevent1qqst6dmss2g2rvlnjvk26k63hljtljlpgy53yqmkqjjfstg8k5n6lmgzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkhj8tff Ada Lovelace, 1843: “We may say that most aptly the Analytical Machine weaves algebraical patterns just as the Jacquard-loom weaves flowers and leaves.”<br/><br/>#computing #retrocomputing #vintagecomputing<br/> <img src="https://fd.discuss.systems/media_attachments/files/116/656/101/392/566/611/original/cbc59fe0904b2f45.png"> <br/> 2026-05-29T05:09:29Z https://nostr.now/nevent1qqs2w2ntnqt4t2v2lqfcgmc9w5t9hhtxvkdkqup5jquxkrus7qm3h6szypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkmes6fm It&#39;s teletype day!<br/><br/>#retrocomputing #vintagecomputing<br/> <img src="https://fd.discuss.systems/media_attachments/files/116/615/517/598/495/451/original/b8b61dee27e2aa5a.jpeg"> <br/> 2026-05-22T01:02:08Z https://nostr.now/nevent1qqsp9fg29xt7wy62rz7h0xzju8mkurqly0t2w2xjwvm9fvehuwfgtfgzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk9866k0 How were { } curly braces typed with a Teletype Model 33 on UNIX? These characters are especially important for C, but absent on this terminal. This is a tour of the coevolution of UNIX and C, from this perspective, featuring “hello, world” through the ages.<br/><br/><a href="https://thalia.dev/blog/unix-braces/">https://thalia.dev/blog/unix-braces/</a><br/><br/>#unix #retrocomputing #vintagecomputing 2026-05-20T04:49:01Z https://nostr.now/nevent1qqsd6vh35g234uhq4adnm9zeuclvyfcakx7l9jataux3k3larsrd6agzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkx59ug3 In reply to <a href='/nevent1qqs9was7d6wgj5cm4zkyf3q89xxz8ctldcryawhthfv7yfpdnh6jxlsu2hamv'>nevent1q…hamv</a><br/>_________________________<br/><br/>Reply from [@zerodogg](<a href="https://hachyderm.io/@zerodogg">https://hachyderm.io/@zerodogg</a> ): &#34;I love learning about UNIX history! Just got my physical copy of «a quarter century» in the mail (and for some reason no one I know are super-excited about this).&#34;<br/><br/>Sadly Peter Salus passed away on Friday. It&#39;s an incredible book and a tragic loss :(.<br/><a href="https://www.tuhs.org/pipermail/tuhs/2026-May/033750.html">https://www.tuhs.org/pipermail/tuhs/2026-May/033750.html</a> 2026-05-19T19:29:06Z https://nostr.now/nevent1qqs9was7d6wgj5cm4zkyf3q89xxz8ctldcryawhthfv7yfpdnh6jxlszypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkuejw65 This Friday, I will be speaking about UNIX V4 for <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1j8ecq8rk6gcn7l9mfq2tj7wv0gseud23r4sa0afgxf83lrxs5nhsg0ncgu" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>Lindsey Kuper</span> (<span class="italic">npub1j8e…ncgu</span>)</a></span>&#39;s Languages, Systems, and Data Seminar! I&#39;m excited to demonstrate programming with a teletype, as that hasn&#39;t fit into my other talks.<br/><br/>If you&#39;re interested, email (see my site) or DM me for a Zoom invite.<br/><br/>Abstract: We recently recovered UNIX V4 from a 1974 magnetic tape at the University of Utah. This version of the UNIX operating system, thought to have been lost, was the 19th copy distributed to the public, just months after the first public announcement. It was originally acquired by Martin Newell while managing the computer graphics laboratory, and it was likely connected to his foundational research in procedural modeling and the famous Utah teapot. UNIX V4 was the culmination of the effort to rewrite the kernel in C, made possible by the introduction of structs to the language, and has shaped all modern operating systems. In this talk, I put this artifact into context within the larger history of UNIX and demonstrate period-appropriate software development with a paper-printing teletype and replica PDP-11.<br/><br/>#unix #retrocomputing #vintagecomputing<br/> <img src="https://fd.discuss.systems/media_attachments/files/116/600/025/622/662/727/original/45a5d453edfc4bde.jpg"> <br/> 2026-05-19T07:21:33Z https://nostr.now/nevent1qqs8sdxe38wrhh5zrzhhwjqm05s595anmp42ad823h2r8kmxygcje5gzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk28dc4w In reply to <a href='/nevent1qqsrq5pzdy70mjqnjam0mwwp8kpqe0lj38af259pajkmkne28z0rx2cp6ek23'>nevent1q…ek23</a><br/>_________________________<br/><br/>We&#39;ve recovered another UNIX distribution that hasn&#39;t been seen in almost 50 years!<br/><br/>This is UNIX Program Generic Issue 3 from 1977-04-12. It descends from V6 and evolved into System III. We thought it didn&#39;t survive, but it turned up in some tapes <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1zyzet9u78fl2gsfpsxgl7pf2dw90ssn5x9ldkkl6d3w6cja5qkwqd7tpl5" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>bitsavers</span> (<span class="italic">npub1zyz…tpl5</span>)</a></span> read yesterday!<br/><br/>You can run it in SIMH with scripts I wrote, browse the sources in the Unix Tree (thanks Warren!) or from a tar, or read the Program Generic documentation (thanks Matt!).<br/><br/><a href="https://www.tuhs.org/pipermail/tuhs/2026-April/033605.html">https://www.tuhs.org/pipermail/tuhs/2026-April/033605.html</a><br/><br/>#unix #retrocomputing #vintagecomputing<br/> <img src="https://fd.discuss.systems/media_attachments/files/116/463/719/425/779/229/original/7b582b0c5673579a.png"> <br/> 2026-04-25T05:44:06Z https://nostr.now/nevent1qqsrq5pzdy70mjqnjam0mwwp8kpqe0lj38af259pajkmkne28z0rx2czypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk7p7zzg A new UNIX snapshot from 1977 to be released soon!!!<br/><br/>#unix #retrocomputing #vintagecomputing 2026-04-24T06:39:49Z https://nostr.now/nevent1qqsw4ar847l220xymh3y0zve86wl82dwm5vkjklk4w8ng530w97cytszypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkgvvxmy In reply to <a href='/nevent1qqs9cl2ngmn895zmswv7s2wxh265k4kffzd79xj8qw4gas732hteawgllvunm'>nevent1q…vunm</a><br/>_________________________<br/><br/>So you have all 19 or so cabinets? No wonder it&#39;s not all on display.<br/><br/>Is it just a regular Selectric? 2026-04-17T01:16:48Z https://nostr.now/nevent1qqsdmm0vpt7l2tw53nkt7s0tsh9gzzrarn9d8tw444capkr6s7t7d5czypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkfh32l7 I now have my own Utah teapot!<br/><br/>This ordinary teapot is the &#34;hello world&#34; object of computer graphics and has cameos in countless productions.<br/><br/>A thread on teapots and UNIX… 🧵<br/><br/>Photo: My Melitta teapot, 2026-04-16.<br/><br/>#retrocomputing #vintagecomputing #unix #utah<br/> <img src="https://fd.discuss.systems/media_attachments/files/116/417/240/003/200/417/original/e129f88a08084c33.jpeg"> <br/> 2026-04-17T00:35:48Z https://nostr.now/nevent1qqsyfjnzkalrfnf7durwpsm5h4v05uakp7jjcr460s7smlw8jyyk8qqzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdka6axup In reply to <a href='/nevent1qqstau6tum3x6kfgc62plyhkrtezvlny9krtpprkvmnujhscy9yx48cmeg5f2'>nevent1q…g5f2</a><br/>_________________________<br/><br/>A better view of the IBM 7030 operator console:<br/> <img src="https://fd.discuss.systems/media_attachments/files/116/416/685/380/918/655/original/a59fb3e287f4bffb.jpeg"> <br/> 2026-04-16T22:15:03Z https://nostr.now/nevent1qqstau6tum3x6kfgc62plyhkrtezvlny9krtpprkvmnujhscy9yx48czypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkkl98n3 In reply to <a href='/nevent1qqstwqyur6t5cm5r4ezj6jdlf0yc8eq69a6ucj6e9h3ywu7mnrgx08gyk7f40'>nevent1q…7f40</a><br/>_________________________<br/><br/>I learned of this model&#39;s significance from a little call-out in Peter Salus&#39; excellent history of UNIX: &#34;The IBM 7030, incidentally, had 64-bit words and 8-bit bytes.&#34;<br/><br/><a href="https://archive.org/details/aquartercenturyofunixpeterh.salus_201910/page/n31/mode/2up">https://archive.org/details/aquartercenturyofunixpeterh.salus_201910/page/n31/mode/2up</a> 2026-04-16T19:45:23Z https://nostr.now/nevent1qqstwqyur6t5cm5r4ezj6jdlf0yc8eq69a6ucj6e9h3ywu7mnrgx08gzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdke4lr8m In reply to <a href='/nevent1qqs0amwn94d5jwfz3nv3tdtlxphs3k2ur8rvxkk4sknkgd7r9asd32g2e2wd3'>nevent1q…2wd3</a><br/>_________________________<br/><br/>A CDC 6600 supercomputer with its wiring exposed, next to the IBM 7030:<br/> <img src="https://fd.discuss.systems/media_attachments/files/116/416/087/446/418/870/original/d9d9ecf46b74915c.jpeg"> <br/> <img src="https://fd.discuss.systems/media_attachments/files/116/416/671/585/353/587/original/9729d6fac39a84c1.jpeg"> <br/> 2026-04-16T19:42:18Z https://nostr.now/nevent1qqs0amwn94d5jwfz3nv3tdtlxphs3k2ur8rvxkk4sknkgd7r9asd32gzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkdcz254 In reply to <a href='/nevent1qqs8qe9jdmxq9q2z2psma2ay69cjf8y204mqql8vat33vyyd873mlys2ax9vn'>nevent1q…x9vn</a><br/>_________________________<br/><br/>The BYU property tags on the IBM 7030 at the Computer History Museum.<br/><br/>#retrocomputing #vintagecomputing<br/> <img src="https://fd.discuss.systems/media_attachments/files/116/416/072/398/544/030/original/e55ac33e141c8a2a.jpeg"> <br/> <img src="https://fd.discuss.systems/media_attachments/files/116/416/072/541/258/498/original/2aba09bffb3bfaf7.jpeg"> <br/> <img src="https://fd.discuss.systems/media_attachments/files/116/416/072/652/831/326/original/8bb7909a7f5c18f0.jpeg"> <br/> <img src="https://fd.discuss.systems/media_attachments/files/116/416/072/750/319/970/original/320f2b3918dbad74.jpeg"> <br/> 2026-04-16T19:38:56Z https://nostr.now/nevent1qqs8qe9jdmxq9q2z2psma2ay69cjf8y204mqql8vat33vyyd873mlyszypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk86nmr5 Utah computer history: This IBM 7030 at the Computer History Museum is from the BYU physics department, used from 1972 to 1982. It features a 64-bit processor, well ahead of its time at its 1961 release, and was IBM&#39;s first transistorized computer. Only 9 were made. Before this machine&#39;s use at BYU, it was used at MITRE Corporation from 1962.<br/><br/>Visited and photos dated 2025-12-20.<br/><br/>#retrocomputing #vintagecomputing<br/> <img src="https://fd.discuss.systems/media_attachments/files/116/416/053/447/210/324/original/5ca11d0fd01d9872.jpeg"> <br/> 2026-04-16T19:35:07Z https://nostr.now/nevent1qqsgkhvtu76d8yknsat7gf85rdx6faq4qtgy7my5s4pytk0s2g0xzsgzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk5qylsf With the renewed attention on the Apollo Guidance Computer, I&#39;ll share some photos from a presentation I gave a couple of years ago on software documentation, featuring its source code.<br/><br/>The engineers who wrote the software that got astronauts onto the moon sure had a sense of whimsy!<br/><br/>Sources:<br/>Archival scans: <a href="https://archive.org/details/Luminary99001J2k60">https://archive.org/details/Luminary99001J2k60</a><br/>B/W scans: <a href="https://www.ibiblio.org/apollo/ScansForConversion/Luminary099/">https://www.ibiblio.org/apollo/ScansForConversion/Luminary099/</a><br/>Transcriptions: <a href="https://github.com/chrislgarry/Apollo-11">https://github.com/chrislgarry/Apollo-11</a><br/>Photo sources in alt text.<br/><br/>#retrocomputing #vintagecomputing #nasa #apollo #artemis<br/> <img src="https://cdn.discuss.systems/media_attachments/files/116/398/659/172/453/073/original/86eb13fc61e3f8b8.jpg"> <br/> <img src="https://cdn.discuss.systems/media_attachments/files/116/398/640/036/950/820/original/3eab5d57e15f20f2.jpg"> <br/> <img src="https://cdn.discuss.systems/media_attachments/files/116/398/640/776/348/635/original/2f3ef7cefaa29909.jpg"> <br/> 2026-04-13T20:55:41Z https://nostr.now/nevent1qqs2g8nvz77xjdag2d6d9l3rkcd9ngqdz8s59ty5wfcyvzuddagw8rgzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk9p06yr In reply to <a href='/nevent1qqsrd9hwwh5zjnr3rqfmw09tatx88vfxg7s277u90p0hl40lq6gp3qgwam0dy'>nevent1q…m0dy</a><br/>_________________________<br/><br/>I need to solder up a DB-25 adapter that wires modem DTR (Data Terminal Ready) to terminal DTR and CD (Carrier Detect). Right now, I just use a jumper and it failed to work during my demo. 2026-04-12T18:36:12Z https://nostr.now/nevent1qqsdm58xs2utkkyyu22xtr3uklxfyye0q3hm3v8p7a2hfy873kcxhjczypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkzue4ng My CoCo 3 works again! After hauling it across town to troubleshoot, it inexplicably fixed itself.<br/><br/>It was having signal issues. When connected to my Tandy CM-8 over RGB, it would only display with the second ground pin (pin 2) disconnected, but with a loud buzzing tone. It had this same buzzing when connected to my Portavision CRT over RF. But it worked just fine with my Commodore 1702 over composite. I didn&#39;t want to deal with this during my demo, so borrowed JJ&#39;s Magnavox CM8562.<br/><br/>When I returned his CM8562 today, I brought along my CoCo and CM-8 to troubleshoot. But when connected them, all the issues were gone! It was able to simultaneously display over RGB, composite, and RF without issues. He suspects the issue was static from the CRT interfering with the computer.<br/><br/>This is the opposite of the demo effect.<br/><br/>#retrocomputing #vintagecomputing<br/> <img src="https://fd.discuss.systems/media_attachments/files/116/383/023/753/887/252/original/707d45db8ae4e0e0.jpeg"> <br/> 2026-04-11T00:01:17Z https://nostr.now/nevent1qqspww8smh7put9akkmtnyym8ztvpcf35ayezl6nll6hfsm4u3a5fjqzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkmvh0ca BIOS on campus:<br/> <img src="https://fd.discuss.systems/media_attachments/files/116/343/795/554/866/814/original/73b0832d0279bc77.jpeg"> <br/> 2026-04-04T01:18:13Z https://nostr.now/nevent1qqsvqw2ldpryee4g9hdh86s6xn49hndmgeuj6ejrtpqx9gn2lmhql7qzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk8hupmq In reply to <a href='/nevent1qqstqhxzrrfyc3hn0lenvu8evl30q2q6pmms6uj5kfzk2tuwwqsn2lqfrufhx'>nevent1q…ufhx</a><br/>_________________________<br/><br/>Please send help; I keep buying teletypes 2026-04-03T21:39:46Z https://nostr.now/nevent1qqsq3jtmg53m3st6cdtnwaerwfp9vpnrcwr25fd6xdw5zldyz9duaqqzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkn0veht Anything that can go wrong in a demo will go wrong.<br/><br/>I couldn’t connect to the projector and used a TV. My serial pin jumper hack for my Teletype Model 43 didn’t work. My VT220 wouldn’t connect. My PiDP-11 fell, so all four standoffs are snapped with plastic stuck in the case. My Portavision TV wouldn’t tune to channel 3, so my three earliest CoCos were unusable. All my Commodore 64 games on floppies were unusable, because I couldn’t find its serial cable.<br/><br/>I’ve troubleshoot all of these things before and have detailed notes, but am utterly incapable when frazzled.<br/><br/>#retrocomputing #vintagecomputing 2026-03-27T04:35:46Z https://nostr.now/nevent1qqsd5tfftzk3fwuu06jlpxg5mpe06lp566lg7vg63v7ch6lyul84ywszypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkqeqk7p In reply to <a href='/nevent1qqsfvgtdcqxxe6f3rzngdyfynuqhfhl2v7ya7nf0s4l9g9kvzjkhj8q3jnuja'>nevent1q…nuja</a><br/>_________________________<br/><br/>I got my first 43 connected to UNIX V7! I needed to jumper the Pi&#39;s Data Terminal Ready (pin 20) to the 43&#39;s Carrier Detect (pin 8). 43s switch from DATA (online) to TERM READY (offline, but ready) after about 20 seconds of CR being off and CR isn&#39;t one of the pins produced via DE-9, so it was only ever online for 20 seconds, unless I&#39;d repeatedly press DATA. 2026-03-26T10:02:17Z https://nostr.now/nevent1qqsfvgtdcqxxe6f3rzngdyfynuqhfhl2v7ya7nf0s4l9g9kvzjkhj8qzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkcaku8p In reply to <a href='/nevent1qqs9re5ptvggpkrcsv93wjzdcreqplphlg7jnlx7rf8anqkx4nztdhcsyn6c2'>nevent1q…n6c2</a><br/>_________________________<br/><br/>Thanks for the help. After lots of reading (UNIX driver sources and manpages, DEC manuals, SIMH sources and docs), I&#39;ve got my VT220, 703, and the emulated VT52 hooked up simultaneously to UNIX V7 over DC11! Still working on my 43s and 733 and UNIX V4. I&#39;ll have to polish a writeup when I&#39;m done. 2026-03-26T03:07:07Z https://nostr.now/nevent1qqszlahc5hlzryr0hjslcxpfsez93dwrpy8j3lsrcfffv4cnkp6zj2szypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkcqh3pe In reply to <a href='/nevent1qqsz8plghdwqw72gccgs6f64tjq0mvnz8s5metch90wpq5kwnl9hstqcfvnxa'>nevent1q…vnxa</a><br/>_________________________<br/><br/>You&#39;ve connected your terminals to modern machines, right? What setup do you use on the Linux side for your 707 (or other RS-232 terminals)? 2026-03-22T19:02:15Z https://nostr.now/nevent1qqs035y8shzxc65gchdyrzeakqjshedsw8jxj608glyv274cr00an6szypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkdys679 It&#39;s serial debugging day!<br/><br/>I need to get at least one of these teletypes working over RS-232 with UNIX V4 and V7 in SIMH. The SIMH docs are notoriously bad. Help would be appreciated.<br/><br/>#retrocomputing #vintagecomputing<br/> <img src="https://fd.discuss.systems/media_attachments/files/116/274/215/302/119/904/original/0091af9fa934595d.jpeg"> <br/> 2026-03-22T18:24:50Z https://nostr.now/nevent1qqsrkk7kfmqr2tm36xxrd9sj3axgjly0de5xu3tkcdx0eut8kuezqhszypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkkftpxs In reply to <a href='/nevent1qqsqd2qe72mgjts7safp6sxlfrxu2dglzy0e7rm3ll6fcd0xvqkw90gl2xach'>nevent1q…xach</a><br/>_________________________<br/><br/>Sandworms (white lined sphinx moths) crawling around the vast expanse of dunes in Death Valley:<br/> <img src="https://fd.discuss.systems/media_attachments/files/116/251/793/785/086/316/original/0e9bc76c694bb419.jpeg"> <br/> <img src="https://fd.discuss.systems/media_attachments/files/116/251/802/108/350/120/original/27427e731df2e732.jpeg"> <br/> 2026-03-18T19:28:09Z https://nostr.now/nevent1qqsqd2qe72mgjts7safp6sxlfrxu2dglzy0e7rm3ll6fcd0xvqkw90gzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkxkvxsg In reply to <a href='/nevent1qqszx35redylqkp4aqkgnm6qgdkf03lsyjpxakfwhp84z3d95lgx6hshae32c'>nevent1q…e32c</a><br/>_________________________<br/><br/>Vibrant colors at Artists Palette in Death Valley:<br/> <img src="https://fd.discuss.systems/media_attachments/files/116/251/773/098/216/966/original/ef2f7a314fc7bb3e.jpeg"> <br/> 2026-03-18T19:15:21Z https://nostr.now/nevent1qqszx35redylqkp4aqkgnm6qgdkf03lsyjpxakfwhp84z3d95lgx6hszypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkp8033n In reply to <a href='/nevent1qqs089exz5ctcdgl795040qcx7sltc4pqyu58zwnlscc2j303ammd4gzhw2ym'>nevent1q…w2ym</a><br/>_________________________<br/><br/>Yellow (and purple) flowers blooming overlooking Badwater Basin in Death Valley:<br/> <img src="https://fd.discuss.systems/media_attachments/files/116/251/758/247/002/578/original/358457159eae2ad1.jpeg"> <br/> <img src="https://fd.discuss.systems/media_attachments/files/116/251/758/427/052/837/original/e52c190b643019be.jpeg"> <br/> <img src="https://fd.discuss.systems/media_attachments/files/116/251/758/620/768/371/original/ff3258861011666c.jpeg"> <br/> <img src="https://fd.discuss.systems/media_attachments/files/116/251/758/845/839/880/original/517572444a1af01b.jpeg"> <br/> 2026-03-18T19:12:49Z https://nostr.now/nevent1qqs089exz5ctcdgl795040qcx7sltc4pqyu58zwnlscc2j303ammd4gzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkq9rvnf In reply to <a href='/nevent1qqsdgxqk63utynykn8j4t5y28npgpzqj356zrp3h9y6jrfd70g8jpccn7vyfx'>nevent1q…vyfx</a><br/>_________________________<br/><br/>Yellow flowers blooming near Badwater Basin in Death Valley:<br/> <img src="https://fd.discuss.systems/media_attachments/files/116/251/721/280/796/886/original/c3966c7ac24c9e3c.jpeg"> <br/> <img src="https://fd.discuss.systems/media_attachments/files/116/251/721/541/750/227/original/24b7f1531489607c.jpeg"> <br/> 2026-03-18T19:08:37Z https://nostr.now/nevent1qqsdgxqk63utynykn8j4t5y28npgpzqj356zrp3h9y6jrfd70g8jpcczypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk7ll6k0 Chilling at Death Valley to see the rare superbloom!<br/> <img src="https://fd.discuss.systems/media_attachments/files/116/251/692/708/063/773/original/28fc5a99d7d8348b.jpeg"> <br/> 2026-03-18T18:58:39Z https://nostr.now/nevent1qqs29uqm5gk4qseagfn7gzcju5wnjes3f6qftyfvdff2ksa2z9r6y7qzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk2lsmjf In reply to <a href='/nevent1qqsyxll5nhxw45yeep3wc9sunhndk04xjkc04ejuvqx9y7rwkyd2z2ck0p5wk'>nevent1q…p5wk</a><br/>_________________________<br/><br/>I never used Gmail and de-Googled long ago, so haven&#39;t used either of those services. But notmuch sounds nice and Rust is always good. 2026-03-10T17:14:29Z https://nostr.now/nevent1qqsdykdeym5lrh2qdha0jlsvjumtjnp373xgu66mvun0q7z73w9azjszypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk75t83s In reply to <a href='/nevent1qqspwagx5n254uvf6ghu25awd4736yemjnrfvv9lxczxyvtyxwetwzsjc9dfk'>nevent1q…9dfk</a><br/>_________________________<br/><br/>But just imagine … a mailreader that lets you read mail on a teleprinter … a better world is possible 2026-03-10T17:02:18Z https://nostr.now/nevent1qqsd7w4zw0zz0w0u5t7yz2useq5zsrlnywtwtd28hern3ux859ndt0qzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkwzkd4g In reply to <a href='/nevent1qqsf86ydtnz0fudmdwnqxk8aws8js0rsng7va4p06ajzkdfef4r6qhsestyg3'>nevent1q…tyg3</a><br/>_________________________<br/><br/>I’m on many fun mailing lists, though. And I get eBay search notifications like the cheap Silent 700 707 teleprinter I snagged yesterday. 2026-03-10T16:59:36Z https://nostr.now/nevent1qqsw8ycxelqzhv78ahrn4afle9kk3kswxzmkwdcua29yfthvtskt9pczypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk9e5n4t In reply to <a href='/nevent1qqsrxhg4mjzzgqrswgtwutrkfcnwm2yp6jmghvsxz5743ppz52df3qsar5wu9'>nevent1q…5wu9</a><br/>_________________________<br/><br/>I&#39;m looking for paper for my 703, 733, and 43. What paper do you use for your 707? I&#39;ve seen 8.5&#34; and 8.3&#34; (A4) wide, various diameters, and various core diameters. 2026-03-09T22:11:11Z https://nostr.now/nevent1qqs2pfxg00e2lqzam32qf7ftjlx4xflmwckpwfjs6mj8t3vvy623p4gzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk9l7uhm Working on repairing my Macintosh SE. The disk drive seems to have dislodged and the speaker doesn&#39;t work.<br/><br/>#retrocomputing #vintagecomputing<br/> <img src="https://fd.discuss.systems/media_attachments/files/116/190/632/575/613/042/original/87e78d6f6e59a613.jpeg"> <br/> <img src="https://fd.discuss.systems/media_attachments/files/116/190/632/576/893/055/original/2cab3a66ade203cf.jpeg"> <br/> <img src="https://fd.discuss.systems/media_attachments/files/116/190/632/618/027/841/original/ab5e170c5e6fb447.jpeg"> <br/> 2026-03-08T00:07:57Z https://nostr.now/nevent1qqsdwmwerjthcd0pmcwpgm6xrhfe0p5dflqtffe3kjv9zarye0a2cjqzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk6xtjrh In reply to <a href='/nevent1qqsqmapwch88nyqajer5zgsvvpg7uhurysu06xccrgf7vdmyyt94segtvaxjs'>nevent1q…axjs</a><br/>_________________________<br/><br/>Just revisiting this project now and that did the trick! The print head now moves smoothly and quickly returns to home. It still doesn&#39;t print, though. It&#39;s probably the old thermal paper, but I haven&#39;t found somewhere selling the proper size. 2026-02-23T06:45:12Z https://nostr.now/nevent1qqs8pfzm4v6qk9g6n3vuufkv2q5c4ge0dssqenjnug6ll2zgs9exssgzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdknh77yv In reply to <a href='/nevent1qqsw6fqrt4n5n9aeqlk5yszd42mwlqeac6qunzxk6hdtngmu4ptq3sgze4eya'>nevent1q…4eya</a><br/>_________________________<br/><br/>Teletype Model 37 art. It’s ASCII68, but with half-forward and half-reverse line feeds, red and black, and an alternate character set with Shift In / Shift Out. 2026-02-14T07:32:41Z https://nostr.now/nevent1qqsf27c5se9c45z0zsl8rhu9pakmnl4m9jh38rkzuh5qa7r97rdtjtqzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdksceyf7 In reply to <a href='/nevent1qqs2pu2l6aj3v2v0vc5gjyaw3hnsk6s4svvknqykkujj89h48jrt9dcwrlg2v'>nevent1q…lg2v</a><br/>_________________________<br/><br/>had to deal with the fallout of this: <a href="https://social.sdf.org/@elb/114889457430843982">https://social.sdf.org/@elb/114889457430843982</a> 2026-02-11T03:59:39Z https://nostr.now/nevent1qqs2pu2l6aj3v2v0vc5gjyaw3hnsk6s4svvknqykkujj89h48jrt9dczypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkmm6nd0 In reply to <a href='/nevent1qqsvk2elxvakvtamlr8yrx0pa4l7ztmw4wtznquk3gfmq2gh93c9whsn4zxxs'>nevent1q…zxxs</a><br/>_________________________<br/><br/>Well that&#39;s a disaster! If they absolutely need to be taken down, they need to be archived first. If you point me to where, I&#39;ll start a recursive archive for the Internet Archive. That&#39;s still not ideal, as it would become even more inaccessible, but it would preserve from destruction. 2026-02-11T03:58:59Z https://nostr.now/nevent1qqstnam4eucq9wsqqjqast0spv4ctucuz5rcxtd83zf9jcqdrcqtfxczypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk0u4df3 In reply to <a href='/nevent1qqstzmm9awh5l7f74pts700r8kvfmr7m005y2hrpnytdap0rtsscw6g0vc4x0'>nevent1q…c4x0</a><br/>_________________________<br/><br/>Great UNIX collection! 2026-02-10T17:32:22Z https://nostr.now/nevent1qqst8d3pm6z82fmtpjgaususvhaf32jnaucqx42x7p4dxpm833yemuszypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkvmqne6 In reply to <a href='/nevent1qqsrep9umy5m0png09lvsgn88sd930saxseljpwzdvme5d9r4pppncqzes2gy'>nevent1q…s2gy</a><br/>_________________________<br/><br/>Ironic. 2026-01-29T18:23:03Z https://nostr.now/nevent1qqsqt4envw53ek3ct46yq2r5u59xs5c4sz6596eexd6n2vj80mkgmcczypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkh4excr In reply to <a href='/nevent1qqsfwnjls944mh2knsynr02rufvsawcze3nd574vacfr74g5vw9c3ncakut45'>nevent1q…ut45</a><br/>_________________________<br/><br/>I had the pleasure of playing Spacewar! and singing Christmas carols with the PDP-1 at the Computer History Museum last month. And Peter Sampson, who wrote the Harmony Compiler demonstrated his pioneering computer music work. Very fun! 2026-01-28T23:59:11Z https://nostr.now/nevent1qqs2ydf20t99wr4ahph4pqhdl2ds98k0fkvcefex8n0lm2gffm2lsygzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkazpmgv Fortunately all my vintage tech still fits in a corner! I have to specialize in little computers and teletypes now.<br/><br/>#retrocomputing #vintagecomputing<br/> <img src="https://fd.discuss.systems/media_attachments/files/115/974/879/827/704/499/original/90e67083d9f6fb4d.jpeg"> <br/> 2026-01-28T21:40:05Z https://nostr.now/nevent1qqst82e4ga7sytemu237n9t3yudq8sxmm8974h6yg359f5fyctn6ynczypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkx7t7jj In reply to <a href='/nevent1qqs9q247h6dyagnhjvaamnvs9cs8k60764dsv683d0kf3nhpkyqv8rgxlg48x'>nevent1q…g48x</a><br/>_________________________<br/><br/>That&#39;s the one you talked about in &#34;The Basement&#34; playing with at coffee shops! It&#39;s got such a tiny screen, haha. 2026-01-28T02:52:23Z https://nostr.now/nevent1qqsfprd3kvwt68r647zcwq20xwj5yk2vlf8kdktlgxn40d24v3mfrfszypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk767rzw In reply to <a href='/nevent1qqs0pzdm5h9kyee3p7pj9cxy50y67umq4azm04x5vtn4lwtv5j6tnugue7j2k'>nevent1q…7j2k</a><br/>_________________________<br/><br/>So the 703 already has a DB-25 connector and would need an external modem to connect to a remote device. Its twin model, the 707, has acoustic coupler, wall, and phone connectors and has an internal modem. I picked the 703, because I wanted RS-232 without any extra hardware. I think you&#39;re talking about the 707? 2026-01-28T02:50:54Z https://nostr.now/nevent1qqs2zn50nmlewfh2jd3nffqxwlnhcy0ux3nh9js8gaa945grkpp7ysczypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdke3re3z In reply to <a href='/nevent1qqsfe3zstakq3dgvcwqtrmavh88nrtgph36efflgvrygx309s9u9grcry5whl'>nevent1q…5whl</a><br/>_________________________<br/><br/>I&#39;ve started going after the smallest computers, until I have more space. I have a Silent 700 703 shipping, which I believe is the smallest teleprinter model. Also, I want a TRS-80 MC-10 (the smaller Color Computer precursor) and TRS-80 Model 100 or 102 (also small). Oh, and I already have a TRS-80 Pocket Computer 2. So many unrelated TRS-80 models! 2026-01-28T02:38:44Z https://nostr.now/nevent1qqsdehwrqqd652at3nd8g3m7gnfmjjtyt229tlfqdv6rqprtlnx3vaqzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk07htg6 In reply to <a href='/nevent1qqsw36kxfnph7et4ac3huk57yaeldrennrxk9ue3ka2djyn9y38a5qg9unzdf'>nevent1q…nzdf</a><br/>_________________________<br/><br/>I&#39;ve just got little stuff, but you have several big irons! 2026-01-28T02:29:43Z https://nostr.now/nevent1qqs2y5800d884zfa59p2trcwnrc0g2g20qtswy776j83turzn7d6seczypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk4u5k32 In reply to <a href='/nevent1qqsx3lqa02j2jlnxkzk3ssp7t3gv6hjn7qs3s98xs2nn2k0lmrn8a6sg2ll03'>nevent1q…ll03</a><br/>_________________________<br/><br/>I thought it was just PS/2, but it&#39;s a weird bus mouse, so I&#39;d need to rig up a microcontroller to use it with a modern system. Feels like more work than its worth. 2026-01-28T02:18:14Z https://nostr.now/nevent1qqs8zzr3zrhd4dv5mhvd5ean23nwehv77tnm6l5tse52jecwlrkgqlczypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk7fyc8n Haul #3: Accessories!<br/><br/>Obsolete Tech / Dasher Deals in SLC is unfortunately closing at the end of this year, but for now they&#39;re liquidating vintage tech at great prices.<br/><br/>I picked up a VT220 virtual terminal, Commodore 1541 floppy drive, TRS-80 Pocket Computer 2, AlphaSmart Pro, C.ITOH Prowriter Jr. dot matrix printer, Logitech P7-3F mouse, C64 joysticks, CoCo books, and some ribbons.<br/><br/>Acquired 2026-01-16.<br/><br/><a href="https://obsoletetech.us/">https://obsoletetech.us/</a><br/><br/>#retrocomputing #vintagecomputing #terminal<br/> <img src="https://fd.discuss.systems/media_attachments/files/115/969/060/698/767/491/original/6b44def8647ccf71.jpeg"> <br/> 2026-01-27T22:51:34Z https://nostr.now/nevent1qqsqmapwch88nyqajer5zgsvvpg7uhurysu06xccrgf7vdmyyt94segzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkhq4p9u In reply to <a href='/nevent1qqsvutf2n9l38wyy8yrl336hjw499lqy9qznzce9kufhscleltl9hucxsv57x'>nevent1q…v57x</a><br/>_________________________<br/><br/>Thanks! This feels much more actionable.<br/><br/>I&#39;m well familiar with the Teletype Model 37 manuals (the model I don&#39;t have and will never be able to get :( ) and they have great troubleshooting guides. I haven&#39;t found anything similar for the Silent 700s. 2026-01-26T19:41:22Z https://nostr.now/nevent1qqsrwep7m6dmxkza5wem2t0as95lse3aul638xmsn56ggykts0zeumqzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkq0j4qp In reply to <a href='/nevent1qqsyvegphz3w2zwgz8f57uhn6w8kc062hcx776xadmwxh0a86luumggm563rp'>nevent1q…63rp</a><br/>_________________________<br/><br/>Testing the keys of my 733. The print head motor needs some help to move. Anyone in SLC want to troubleshoot together? I come from a software background, so am in a little over my head on this.<br/><video controls width="100%" class="max-h-[90vh] bg-neutral-300 dark:bg-zinc-700"><source src="https://fd.discuss.systems/media_attachments/files/115/962/867/221/331/481/original/d6a1c11d0df17ba6.mp4"></video><br/> 2026-01-26T18:45:07Z https://nostr.now/nevent1qqsyvegphz3w2zwgz8f57uhn6w8kc062hcx776xadmwxh0a86luumggzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkxxcwda In reply to <a href='/nevent1qqs2ae9h6rzmm0xxwppuwvmyldrj4yasc2788kkansed3vanz7jqvfsaq6kpv'>nevent1q…6kpv</a><br/>_________________________<br/><br/>With the cassette ASR cover removed, showing the internals.<br/> <img src="https://fd.discuss.systems/media_attachments/files/115/962/861/461/080/155/original/78669cffb0c53af9.jpeg"> <br/> 2026-01-26T18:41:47Z https://nostr.now/nevent1qqs2ae9h6rzmm0xxwppuwvmyldrj4yasc2788kkansed3vanz7jqvfszypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk50066m Testing my teleprinters.<br/><br/>#retrocomputing #vintagecomputing #teletype<br/> <img src="https://fd.discuss.systems/media_attachments/files/115/962/845/176/333/526/original/ee32c729108075dc.jpeg"> <br/> 2026-01-26T18:40:14Z https://nostr.now/nevent1qqsv865sezuhdsv85snaa8kvufz6gjsed9906w2nqf8r9gq7ax9pkuczypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk6uax5v In reply to <a href='/nevent1qqsy4re2awetv83z8hmlm3yufg48p8m5sel0ll0rklmfjtr4usgwwlscltk8z'>nevent1q…tk8z</a><br/>_________________________<br/><br/>The hackathons around here always seem to be organized around some inane AI theme. Though my undergrad did 24-hour hackathons that allowed you to build whatever you want, which were fun. But I&#39;d love to do a retro hackathon. 2026-01-25T00:41:59Z https://nostr.now/nevent1qqsgx8eu3lzpr7qxtg4km0srku64xm0t4lcq02f4jwa3kkmzemjge5czypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk6hd9qs In reply to <a href='/nevent1qqsplg5095j8c8lkhavjxht8ysecm9z7rty909saepgz08y5r2krh2cgtudyg'>nevent1q…udyg</a><br/>_________________________<br/><br/>Ah, you&#39;re using Tim_Shoppa_v6; I was hoping it was an original copy. Very cool you have the hardware to run this. 2026-01-24T23:39:36Z https://nostr.now/nevent1qqstzdtlnpddglkga6435py4a208yml6zel7kd2595t800n27qpfwpczypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkax9nse In reply to <a href='/nevent1qqs2gqhcmr23gtc5k2qm5fm2yyclp8y48tfaf9x09056hq2uagdy24qgt3zkd'>nevent1q…3zkd</a><br/>_________________________<br/><br/>Very impressive collection!<br/><br/>You write that one of your disk packs has UNIX V6. Have you imaged this disk? There&#39;s a snapshot of V6 that I know of that&#39;s two months earlier than Dennis_v6 that I intend to release to TUHS soon. Yours could also be a unique snapshot. 2026-01-24T23:11:15Z https://nostr.now/nevent1qqstam6qrmlt0f0xettsl54qqdea0x2g2axhs2xuwac48x0sn3f4wsszypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkf7apqv In reply to <a href='/nevent1qqsp4jtj9m9pr2v43dm8tvkzhrtltv5tautqr3t0l8sn4p2ms8lcmesu7fdyl'>nevent1q…fdyl</a><br/>_________________________<br/><br/>The timeline sounds off on that. C was developed in 1972–1973, the Model 43 was introduced in 1977, and Model 37 in 1968. I watched that talk and recall him talking about a prank with reverse line feeds on a Model 37 at Research; are you thinking of that? 2026-01-24T22:48:30Z https://nostr.now/nevent1qqswqse3n2ugrjzr8qxjn8e7anm8ea7s2qs2knsvx2rxkk8kkle3grszypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkfyhs24 In reply to <a href='/nevent1qqsvgw7u4pv06n3ekfqczkml0f9ujuteu7gkuqa8wdu5d8szfs0mazc7eykdg'>nevent1q…ykdg</a><br/>_________________________<br/><br/>My white whale is a Teletype Model 37, but they&#39;re exceedingly rare. I&#39;m interested in them for their popularity with early UNIX users and influence on roff and am sporadically working on an emulator. I&#39;ve reached out to several people who have connections to these machines, to no luck :(. 2026-01-24T22:42:53Z https://nostr.now/nevent1qqsvgw7u4pv06n3ekfqczkml0f9ujuteu7gkuqa8wdu5d8szfs0mazczypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdk6uv7jz In reply to <a href='/nevent1qqsgkslqcfdcjgla6a529uap9pvaluyshftwwn97axjs3zp6u92xm6q5frke6'>nevent1q…rke6</a><br/>_________________________<br/><br/>My collection has been growing quickly, haha. Over the past two weeks, I&#39;ve acquired a TI Silent 700 ASR 733, VT220, Tandy Color Computer 1, 2, and 3, Commodore 64, TRS-80 Pocket Computer 2, and a bunch of accessories. Photos to be posted soon. 2026-01-24T22:40:20Z https://nostr.now/nevent1qqsflj9atzmwmewhuf2jar0m6us6v6r2vny8ukptf35nyvf0cjqgyggzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdkpa4qgg In reply to <a href='/nevent1qqsyhjlp8wvkp6d0v0947exee87wrnvva2rh4kekhq2z4xpu563slxcknrwdc'>nevent1q…rwdc</a><br/>_________________________<br/><br/>I aspire to have an office as cool as this! 2026-01-24T22:33:49Z https://nostr.now/nevent1qqs973ljes2sf95c5jftpc8rpak7sl89mxleymnggqrf3srgmc7zvfqzypwu0vxzky4v2mqmet39w3h8jyu5dwy59kgcnt335d9e7x3d7tqdky67lqm Building my PiDP-11 (from <a href="https://obsolescence.dev/">https://obsolescence.dev/</a>) and hacking on UNIX V5 with ed. It&#39;s an incredibly productive system! Little did I know, we&#39;d shortly find a version of UNIX V4 from nine months earlier.<br/><br/>On screen is a Whitespace interpreter I was working on for V5—my project whenever I learn a new language (<a href="https://github.com/wspace/corpus">https://github.com/wspace/corpus</a>).<br/><br/>Photos dated 2025-04-06 and 2025-04-23.<br/> <img src="https://fd.discuss.systems/media_attachments/files/115/918/658/479/023/181/original/d786002eab3dbc5b.jpeg"> <br/> <img src="https://fd.discuss.systems/media_attachments/files/115/918/658/495/406/994/original/0700639bdc17351c.jpeg"> <br/> 2026-01-18T23:29:14Z