Silicium
#silicium collection
Texas Instruments TI-58 (1977) :
une calculatrice programmable mythique avec ses modules ROM interchangeables !
Un bijou pour ingénieurs et étudiants avant l’ère des PC portables
💾✨🔢
#RetroTech #Calculatrice #Retrocomputing
#Heritage #toulouse
Sep 24, 2025 at 5:15amWeb
Show threadDave FischerSep 24, 2025

@occitel In addition to the ROM modules, those black strips are magnetic storage!

https://www.youtube.com/watch?v=G62GbpXvCao

Texas TI-59 reading a magnetic card written 30 years ago

YouTube
Show threadSiliciumSep 24, 2025
@davefischer it was the ti-59 that had a magnetic card reader. The 58 have no way to save a prog. It even disapear when you switch it off. The later 58c had a continuous memory.