Questions tagged [hardware-mods]

For questions about modifications to retro hardware.

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34
votes
3answers
9k views

What modification is required from a PC floppy for use in Amiga?

Around the end of the time of Amiga popularity, obtaining a replacement Amiga floppy drive was a nuisance, while PC drives were ubiquitous and cheap. One could install a PC drive in Amiga after ...
62
votes
14answers
22k views

Why did some early CPUs use external math chips?

While enjoying the response to "Why did CPU designers in the 70s prioritize reducing pin count?" In 1979 IEEE was hard at work at coming up with a standard for handling floating point numbers, and ...
15
votes
6answers
4k views

Can a 16K computer be upgraded to 64K?

A slightly odd question, but is it possible to take an old 16K computer that wasn't designed for memory upgrades, such as a Commodore 16 or PET 4016, and upgrade it to 64K as a hardware hack? I'm not ...
14
votes
3answers
3k views

Replacing 80286 with 68000

Suppose you wanted to take a 286 PC and replace the CPU with a 68000, not at the initial design stage, but actually modifying the finished machine, on the theory that they both have 24 bits of address ...
18
votes
1answer
1k views

How does the 4MB mod for 8-bit Atari work?

On the local auction portal I have spotted ads for some "supercharged" 8-bit Ataris (800XL, 65XE etc) - modified to support 4 megabytes of RAM. The auctions were scarce in details, more concentrating ...