Tag
Video
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We Shipped the Mathematics
Classic QuickTime's codecs are full of tables. Wherever there was mathematics behind one, we found it and shipped that instead: six numbers in place of 1,536, and a 1,155-instruction filterbank that turned out to be a textbook formula. Where there was no rule, we say so.
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Dual Voltage Early Macintosh Power Supply
The dual voltage power supplies in Mac 128, Mac 512 and Mac Plus work by using two capacitors in series. They function as 220-240V units but can switch to 120V with a wire link or external switch.