Radio Shack / Tandy

Index




Model:    TRS-80 Model III
Release Date:    July 1980
Original Price:    $699 for the basic model
Processor:    Z80A 8-bit @ 2.03 MHz
Memory:    4-48 KB RAM / 4-14 KB ROM

The successor to the Model I, the Model III was an upgrade in every regard - more memory, faster CPU, and lager floppy disk storage. The main reason for the Model III redesign is due to the amount of RF noise that the original Model I's produced.

Interface ports are available for a cassette tape recorder, a parallel printer as well as an internal 25-pin RS232 serial port. You could add two external 5¼" floppy disk drives in addition to the two internal units. There was also an optional hi-resolution graphics card.


   >> Click here to download the Operation and BASIC Language Reference Manual (11.4 mb)
   >> Click here to download the Service Manual (57.2 mb)


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