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Computer history, restoring vintage computers, IC reverse engineering, and whatever.
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Looking inside a 1970s PROM chip that stores data in microscopic fuses
The MMI 5300 was a memory chip from the early 1970s, storing 1024 bits in tiny fuses. 1 Unlike regular RAM chips, this was a PROM ( Progra...
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Energizing a vacuum-tube flip-flop module from a 1948 IBM system
In 1948, IBM introduced the 604 Electronic Calculating Punch. This machine was a programmable calculator, about the size of a double refrigerator. It was not quite a computer, but was programmed by plugging wires into a plugboard. This machine read number
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Energizing a vacuum-tube flip-flop module from a 1948 IBM system
In 1948, IBM introduced the 604 Electronic Calculating Punch. This machine was a programmable calculator, about the size of a double refrigerator. It was not quite a computer, but was programmed by plugging wires into a plugboard. This machine read number
Read more
Report
Apple iPhone charger teardown: quality in a tiny expensive package
This article is now available in Vietnamese Bộ sạc iPhone của Apple . Disassembling Apple's diminutive inch-cube iPhone charger reveals ...
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Examining circuit boards from the Space Shuttle's I/O Processor
The Space Shuttle's five 1 general-purpose computers played a critical role in each flight: controlling the engines, monitoring thousands of sensors, displaying data to the astronauts, and navigating the Shuttle. Each computer consisted of two 60-pound al
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