Ken Shirriff on Nostr: Last week, the vintage IBM 1401 computer at the Computer History Museum started ...
Last week, the vintage IBM 1401 computer at the Computer History Museum started behaving strangely: it wouldn't halt. More specifically, if you had two HALT instructions in a row, it would halt for the first, but when you continued, it crashed mysteriously. Here's how we fixed it.... 1/N
Published at
2025-06-20 02:57:39 UTCEvent JSON
{
"id": "d8abce450c19c6aae6905fd8c9ee02866d3531c313bf70622aae5fc2d62d0572",
"pubkey": "53c85f49d60bd50b1b1366c2fa65054089988f695534d0b64a9b8d6b4e0ce45d",
"created_at": 1750388259,
"kind": 1,
"tags": [
[
"imeta",
"url https://assets.oldbytes.space/assets.oldbytes.space/media_attachments/files/114/713/444/182/512/594/original/f544d480f5bac21d.png",
"m image/png",
"dim 1600x1029",
"blurhash USF#zSNy_M$j}tOEJRnO;g?cJ8xa=xofbvIp"
],
[
"proxy",
"https://oldbytes.space/users/kenshirriff/statuses/114713444988851989",
"activitypub"
],
[
"client",
"Mostr",
"31990:6be38f8c63df7dbf84db7ec4a6e6fbbd8d19dca3b980efad18585c46f04b26f9:mostr",
"wss://relay.mostr.pub"
]
],
"content": "Last week, the vintage IBM 1401 computer at the Computer History Museum started behaving strangely: it wouldn't halt. More specifically, if you had two HALT instructions in a row, it would halt for the first, but when you continued, it crashed mysteriously. Here's how we fixed it.... 1/N\n\nhttps://assets.oldbytes.space/assets.oldbytes.space/media_attachments/files/114/713/444/182/512/594/original/f544d480f5bac21d.png",
"sig": "72b9a0cec0a71624a2c42a4eeb939e5b225107acb820ac79a3d9ebd2801ace2f658c66680d96817dfb9792ccbf1f5446e64487b86a754f8771749402c6965287"
}
