Category Archives: retrocomputing

Emulating A 6502 In ROM

The Gigatron TTL microcomputer is an exercise in alternative history. What if, by some bizarre anomaly of invention and technology, the 1970s was not the age of the microprocessor? What if we could have had fast, high density ROM and RAM in the late ’70s, but the ability to put …read more

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Posted in 6502, gigatron, retrocomputing, ttl | Leave a comment

Bit Preserve: A Sanctuary For Modern Captures Of Vintage Schematics

Vintage parts may be documented, but that doesn’t mean they’re particularly useful or accessible. If the phrase “eyestrain from unsearchable, badly-scanned PDF datasheets” makes your lower eyelid twitch in sympathy, read on.

While [Bald Engineer] was researching how he might make a portable Apple II, he was delighted to find …read more

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Posted in apple II, Apple IIGS, bit preserve, cons, KiCAD, KiCon, repository, retrocomputing, vintage | Leave a comment

The Benefits Of Restoring a C64 With A Modern FPGA Board

The Commodore 64 was the highest selling computer of all time, and will likely forever remain that way due to the fragmentation of models in the market ever since. Due to this, it’s hardly surprising that it still has a strong following many years after its heyday. This means that …read more

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The OS/2 Operating System Didn’t Die… It Went Underground

One problem with building things using state-of-the-art techniques is that sometimes those that look like they will be “the next big thing” turn out to be dead ends. Next thing you know, that hot new part or piece of software is hard to get or unmaintained. This is especially true …read more

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Posted in ibm, new york, os/2, retrocomputing, subway | Leave a comment

Reverse Engineering The Sound Blaster

The first sound card to output PCM audio — the kind you need for audio samples — wasn’t the Sound Blaster. The AdLib Music Synthesizer Card could output PCM audio over software. The AdLib card also cost $200 at the time of its release. This was too much for some, …read more

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Posted in 8051, classic hacks, retrocomputing, sound blaster, SoundBlaster | Leave a comment

Vintage Speech Synthesizer Croons the Oldies

If you listened to the National Weather Service Weather Radio in the US about 25 years ago, you’ll no doubt remember [Perfect Paul], one of the synthesized voices used to read current conditions and weather forecasts. The voice came from a DECtalk DTC01, a not inexpensive voice synthesizer first made …read more

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Posted in DECtalk, musical hacks, phoneme, retrocomputer, retrocomputing, rs-232, serial, speech synthesis, TRS-80 model 100 | Leave a comment

A Quite Obscure C128 Video Mode Hack

30 years ago, [Dave] found himself up a C128D creek without a paddle. His main monitor was on the fritz, and he needed to use his C128D in 40-column mode to run old C64 programs for development purposes. Normally this is only possible through the low quality composite out, but …read more

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Vintage Terminal Converted For Galactic Use In Time For May The Fourth

“Not as clumsy or random as Windows. An elegant terminal, for a more civilized age.” [Ben Kenobi] might well have said that about the Hewlett-Packard 264x-series of serial terminals, in use starting at just about the time the original installment of the Star Wars franchise was released.  With their wide-screen …read more

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Posted in 2645A, Aurebesh, charcater, font, H-P, May the Fourth, PROM, retrocomputing, serial, star wars, terminal, vt-100 | Leave a comment

Add A Bit Of Soviet-Era Super-Computing To Your FPGA

The MESM-6 project is focused on bringing the 1960s Soviet BESM-6 computer to the modern age of FPGAs and HDLs. At the moment the team behind this preservation effort consists out of [Evgeniy Khaluev], [Serge Vakulenko] and [Leo Broukhis], who are covering the efforts on the Russian-language project page.

The …read more

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Posted in besm-6, fpga, retrocomputing, soviet computing, supercomputer, SystemVerilog | Leave a comment

Creating A Contest-Winning Amiga Demo Soundtrack

The Amiga platform took the world by storm in the 1980s. Developed by a crack team and brought to market by Commodore, the OCS chipset brought high-quality graphics and sound into the home computer market in a way never seen before. These capabilities cemented the Amiga’s place in the demoscene, …read more

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Posted in amiga, demoscene, protracker, retrocomputing | Leave a comment