WHERE OLD COMPUTERS ARE WELCOME
| Name | M20BC |
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| Manufacturer | Olivetti (Italy) | Type | Desktop |
| Production start (mm-yyyy) | 1983 | Production end (mm-yyyy) | - |
| RAM | 224Kb | ROM | 64Kb (16Kb x 4 ROM) |
| CPU | Z8001, 8086 on optional card - 4 Mhz | ||
| Operating System | PCOS, CP/M86 with optional card, CP/M8000 (?) | ||
| Text (Cols x Rows) | 80 x 24 | ||
| Graphics | 512 x 256 mono, 4 or 8 colours | ||
| Sound | |||
| Storage memory | Floppy 160-320-640Kb x 2, Hd 11,5 Mb optional | ||
| Serial port | RS-232C | Parallel port | Centronics |
| Others port | Parallel IEEE 488, RS-232-C Twin | ||
| Original price | Currency original price | 0 | |
| Units sold | |||
| Note | The RAM is distributed in this way: - 128Kb on the motherboard - up to 3 expansion each of 32Kb or 128Kb, but you can't mix the sizes. 512k was the maximum decoded by the motherboard. A 4 color system need at least one expansion (32kb or 128Kb), instead the 8 color system need two expansion (always 32kb or 128kb). The M20 can use up to 4 disks types: - floppy disk 5.25" 640 Kbyte (DSHD); - floppy disk 5.25" 320 Kbyte (DSDD); - floppy disk 5.25" 160 Kbyte (SSDD); - hard disk 5.25" 11.25 MByte. |
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| Configurations | |||
| User | webmaster | ||
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