PDP-7
A modified PDP-7 under restoration in Oslo, Norway | |
| Manufacturer | Digital Equipment Corporation |
|---|---|
| Product family | Programmed Data Processor |
| Type | Minicomputer |
| Released | 1965 |
| Introductory price | US$72,000 (equivalent to $735,586 in 2025) |
| Units sold | 120 |
| Units shipped | 120 |
| Operating system | DECsys, Unix (as "Unics") |
| Memory | 4K words (9.2 KB) (expandable up to 64K words (144 KB).) |
| Storage | Paper-tape and dual transport DECtape drives (type 555) |
| Display | Printer |
| Input | Keyboard |
| Platform | PDP 18-bit |
| Backward compatibility | PDP-1 |
| Predecessor | PDP-4 |
| Successor | PDP-9 |
The PDP-7 is an 18-bit minicomputer produced by Digital Equipment Corporation as part of the PDP series. Introduced in 1964, shipped since 1965, it was the first to use their Flip-Chip technology. With a cost of US$72,000, it was cheap but powerful by the standards of the time. The PDP-7 is the third of Digital's 18-bit machines, with essentially the same instruction set architecture as the PDP-4 and the PDP-9.