Ken Shirriff's blog
Computer history, restoring vintage computers, IC reverse engineering, and whatever
12-minute Mandelbrot: fractals on a 50 year old IBM 1401 mainframe
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When I found out that the Computer History Museum has a working IBM 1401 computer [1] , I wondered if it could generate the Mandelbrot frac...
23 comments:
A database of SMS cards: The technology inside IBM's 1960s mainframes
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IBM's mainframes of the 1960s are based on an interesting technology - Standard Modular System cards or SMS cards. These cards, created...
16 comments:
How to display the Bitcoin symbol using a webfont
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Bitcoin Wiki describes some alternative ways to display the symbol that are easier than my approach. You're probably better off readi...
2 comments:
Inside the Intel 1405: die photos of a shift register memory from 1970
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In 1970, MOS memory chips were just becoming popular, but were still very expensive. Intel had released their first product the previous yea...
5 comments:
Down to the silicon: how the Z80's registers are implemented
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The 8-bit Z80 microprocessor is famed for use in many early personal computers such the Osborne 1, TRS-80, and Sinclair ZX Spectrum. The Z80...
21 comments:
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