PDP-11/40
From Computer History Wiki
The PDP-11/40, introduced in 1973, was the first machine to introduce 18-bit memory addressing on the PDP-11 platform.
| PDP-11/40 | |
 PDP-11/40 with TU56 dual DECtape drive. | |
| Manufacturer: | Digital Equipment Corporation |
|---|---|
| Word Size: | 16 bit |
| Physical Address Size: | 18 bit |
| Virtual Address Size: | 16 bit |
| Bus Architecture: | UNIBUS |
