Showing posts with label alto. Show all posts
Showing posts with label alto. Show all posts

Improvements to the Xerox Alto Mandelbrot drop runtime from 1 hour to 9 minutes

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Last week I wrote a Mandelbrot set program for the Xerox Alto, which took an hour to generate the fractal. The point of this project was to...
15 comments:

One-hour Mandelbrot: Creating a fractal on the vintage Xerox Alto

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I wrote a short program to generate the Mandelbrot set on the Xerox Alto, a groundbreaking minicomputer from the 1970s. The program, in...
11 comments:

Simulating a Xerox Alto with the ContrAlto simulator: games and Smalltalk

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The revolutionary Xerox Alto computer came out in 1973 and set the direction for personal computing. If you want to try out the Alto'...
10 comments:

Restoring YC's Xerox Alto day 10: New boards, running programs, mouse problems

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Last week our vintage Alto was crashing; we traced the problem to an incompatibility between two of the processor boards. Today we repla...
18 comments:

Restoring YC's Xerox Alto day 9: tracing a crash through software and hardware

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Last week, after months of restoration, we finally got the vintage Xerox Alto computer to boot ( details ) and run programs. However, so...
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Restoring a vintage Xerox Alto day 8: it boots!

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We've been restoring a Xerox Alto from the 1970s for several months, and we finally got it to boot and run some programs! There's ...
7 comments:

Restoring a Xerox Alto day 7: experiments with disk and Ethernet emulators

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In this Alto restoration session we controlled the Alto's disk drive with an FPGA disk emulator and attempted booting the Alto with a B...