WHERE OLD COMPUTERS ARE WELCOME
| Name | Heathkit H11 | ||
| Manufacturer | Heath Co. (USA) | Type | Desktop |
| Production start (mm-yyyy) | 1977 | Production end (mm-yyyy) | - |
| RAM | 8-64Kb | ROM | |
| CPU | DEC LSI-11/2 16Bit - 2.6 Mhz | ||
| Operating System | |||
| Text (Cols x Rows) | |||
| Graphics | |||
| Sound | |||
| Storage memory | Floppy 5.25" or 8" 256Kb (H-27), paper tape reader, tape | ||
| Serial port | 1 | Parallel port | 1 |
| Others port | 7 LSI slots | ||
| Original price | Currency original price | 1295 USD | |
| Units sold | |||
| Note | In the Q-bus the highest 8KB addresses are
reserved for devices. Thus, the system can contain at
most 56k of real memory. The processor (lsi-11/2) ran at a 380 nanosecond average cycle time which is approximately 2.6 Mhz. This was relatively fast compared to its parent the PDP-11/20 minicomputer(1970) which because of its magnetic core memory ran at a 800 nanosecond cycle time. |
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| Configurations | |||
| User | webmaster | ||
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