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That sort of thing has been going on for a long time. The 32K TRS-80 Color Computer often had 64K RAM chips installed. Early on they were populated with "half b
by Mountain_Skies 4y ago
That sort of thing has been going on for a long time. The 32K TRS-80 Color Computer often had 64K RAM chips installed. Early on they were populated with "half bad" 64k RAM chips, with a jumper set to which half contained the bad memory. Later in the product cycle, half bad chips really didn't exist anymore, but Radio Shack still wanted to be able to charge more for 64K models, so they still jumper disabled one of the banks of memory on models sold as 32K. Lots of people figured out they could remove the jumper to get a free upgrade of double the memory.