I used to have three slightly different models of PC1640, all of which came from Grapevine Information Services. As with the PC1512 they were used for about 4 years as viewdata editing machines, with only the monitors being switched off overnight. Unfortunately two of them had to be recycled, so I now have a single PC1640 left.
| Name. | Amstrad PC1640/HD30. |
| Introduced. | 1986. |
| Processor. | Intel 8086 (8MHz). |
| RAM. | 640 Kb. |
| ROM. | 16 Kb (containing BIOS). |
| Operating system. | MS-DOS 3.2. |
| Interfaces. |
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| Monitor. | Amstrad EGA colour. |
| Drives. |
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| Expansion cards. | LANtastic network cards. |
| Software installed (selection). |
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