Ken Shirriff on Nostr: Spacelab used three French-built minicomputers, model Mitra 125 MS. This photo shows ...

Spacelab used three French-built minicomputers, model Mitra 125 MS. This photo shows the core memory stack in front of the computer. (The computer looks empty because I removed the circuit boards for analysis.) The computer is surprisingly heavy; it has a lot of metal for conduction cooling.