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General| Manufacturer | Radio Shack |
|---|---|
| Model | TRS-80 Model 4 |
| Category | Desktop |
| Release Year | 1983 |
| CPU | Zilog Z80 |
| CPU Speed | 4 MHz |
| Display | Monochrome CRT |
| Operating System | TRSDOS |
| Ports | RS-232 |
| Keyboard | Full-sized with numeric keypad |
| Power Supply | Internal |
| Storage | One or two 5.25" floppy disk drives (180 KB each) |
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