WHERE OLD COMPUTERS ARE WELCOME
| Name | Challenger II |
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| Manufacturer | Ohio Scientific Instruments (OSI) (USA) | Type | Desktop |
| Production start (mm-yyyy) | 1977 | Production end (mm-yyyy) | - |
| RAM | 16-192Kb | ROM | 8kb |
| CPU | 6502 - 1 Mhz | ||
| Operating System | |||
| Text (Cols x Rows) | 64 x 16 | ||
| Graphics | None | ||
| Sound | |||
| Storage memory | Tape, floppy 8" | ||
| Serial port | 1 | Parallel port | |
| Others port | Monitor, Four Slots S-100 | ||
| Original price | Currency original price | 1964 USD | |
| Units sold | |||
| Note | |||
| Configurations | |||
| User | webmaster | ||
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