Ken Shirriff's blog

Computer history, restoring vintage computers, IC reverse engineering, and whatever

Showing posts with label ibm. Show all posts
Showing posts with label ibm. Show all posts

IBM paperweight teardown: Reverse-engineering 1970s memory chips

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I recently received a vintage IBM paperweight from the early 1970s that showcases some memory chips. 1 When IBM started using integrated ...
8 comments:

The core memory inside a Saturn V rocket's computer

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The Launch Vehicle Digital Computer (LVDC) had a key role in the Apollo Moon mission, guiding and controlling the Saturn V rocket. Like most...
5 comments:

TROS: How IBM mainframes stored microcode in transformers

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I recently came across a Transformer Read-Only Storage (TROS) module that stored microcode in an IBM System/360 mainframe computer. This unu...
9 comments:
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