Ken Shirriff's blog

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

Showing posts with label analog. Show all posts
Showing posts with label analog. 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:

Reverse-engineering the clock chip in the first MOS calculator

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In 1969, Sharp introduced the first calculator built from high-density MOS chips, the QT-8D , followed by the handheld Sharp EL-8, the worl...
1 comment:

How the bootstrap load made the historic Intel 8008 processor possible

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Near the end of 1972, Intel introduced their first 8-bit microprocessor, the 8008. Decades later, this processor still influences computi...
1 comment:
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