Ken Shirriff's blog
Computer history, restoring vintage computers, IC reverse engineering, and whatever
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 ...
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Booting the IBM 1401: How a 1959 punch-card computer loads a program
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How do you boot a computer from punch cards when the computer has no operating system and no ROM? To make things worse, this computer req...
16 comments:
Teardown of a quartz crystal oscillator and the tiny IC inside
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The quartz oscillator is an important electronic circuit, providing highly-accurate timing signals at a low cost. A quartz crystal has the...
7 comments:
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