Ken Shirriff's blog

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

Showing posts with label reverse-engineering. Show all posts
Showing posts with label reverse-engineering. Show all posts

Strange chip: Teardown of a vintage IBM token ring controller

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IBM used some unusual techniques in its integrated circuits, and one of the most visible is packaging them in square metal cans. I've ...
6 comments:

A one-bit processor explained: reverse-engineering the vintage MC14500B

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The Motorola MC14500B 1 is a 1-bit processor introduced in 1976. While a 1-bit processor might seem almost useless, 2 it was marketed as...
13 comments:

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:
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