Category: "TRS-80 Model 4"

Tandy TRS-80 Model 4

Near the end of the TRS-80 product run came the Tandy TRS-80 Model 4 from Tandy / Radio Shack. Introduced in 1983, it was an upgrade from the Model 3 in that it ran at a blazing 4 MHz using a Zilog Z80 processor and had a display of 80 columns by 24 lines.  The […]

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