Ken Shirriff's blog
Computer history, restoring vintage computers, IC reverse engineering, and whatever
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...
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Inside the digital clock from a Soyuz spacecraft
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We recently obtained a clock that flew on a Soyuz space mission. 1 The clock, manufactured in 1984, is much more complex inside than you...
33 comments:
Understanding and repairing the power supply from a 1969 analog computer
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We recently started restoring a vintage 1 analog computer. Unlike a digital computer that represents numbers with discrete binary values, a...
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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...
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