WHERE OLD COMPUTERS ARE WELCOME
| Name | Challenger III |
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| Manufacturer | Ohio Scientific Instruments (OSI) (USA) | Type | Desktop |
| Production start (mm-yyyy) | 1977 | Production end (mm-yyyy) | - |
| RAM | 32Kb - 1Mb | ROM | |
| CPU | 6502A - Mhz | ||
| Operating System | OS-65D | ||
| Text (Cols x Rows) | |||
| Graphics | |||
| Sound | |||
| Storage memory | Floppy 8" 250 KB x 2 | ||
| Serial port | Parallel port | ||
| Others port | |||
| Original price | Currency original price | 3480 USD | |
| Units sold | |||
| Note | |||
| Configurations | |||
| User | webmaster | ||
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