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TRS-80 Microcomputer System
( a.k.a. Model I )

Introduced:
CPU:
RAM:
ROM:
Disk Storage:
Operating System:
Language:
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August 3, 1977
Zilog Z80
Originally 4k, expanded to 48k
Originally 4k, expanded to 16k
83k per side
TRS-DOS 2.0 to 2.3
Microsoft BASIC |
Price from 1979 Radio Shack Catalogue (CDN$):
Level II, 16K
Expansion Kit
Disk 1
Disk 2
Serial Interface
Printer (1980)
Total: |
1547.00
1327.00
829.00
799.00
159.95
349.00
$5010.95 |
Retailed through the 3000 Radio
Shack stores, the TRS-80 Model I was the first mass-marketed computer.
At the time of its introduction, only 25 units had been built. Nearly 55,000
were sold in the first year of production.
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