TANDY RADIO SHACK TRS-80 MODEL I

 

I have the main unit and Tandy Radio Shaek TRS-80 expandion interface.

 

type computer
country USA
year 1977
os TRS DOS, built in Basic Level 1
cpu Zilog Z70
speed 1.77 MHz
ram 4 KB
rom 4 KB
graphic 128×48
colors mono
sound none
ports monitor, cassette, expansion port



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