# PDP-15 Simulator Configuration

Introduced in 1969, the PDP-15 was DEC's fifth (and last) 18-bit computer system. Upward compatible from the PDP-9, it included several new architectural features, including indexing, expanded memory capacity, full memory protection, and floating point. The last PDP-15 was produced in the late 1970's.

Photographs (courtesy of Digital Equipment Corporation):

- PDP-15

Option | Description | Capacity
CPU and memory | PDP-15, no floating point | 4KW - 128KW
CPU options | KE15 EAE, extended arithmetic element |
| KF15 power fail detection |
| KM15 memory protection control |
| KT15 memory relocation control |
| XM15 (XVM) memory controller |
| FP15 floating point processor |
Console | KSR-35 Teletype |
Additional terminals | LT19 and KSR-35 Teletypes | 1-16 lines
Paper tape | PC15 paper tape reader and punch |
Real time clock | KW15 real time clock |
Line printer | LP15 line printer |
DECtape | TC15/TU56 DECtape | 148KW
Disk | RF15/RS15 fixed head disk | 2.1MW
| RP15/RP02 disk pack | 10.4MW
Magnetic tape | TC59D magnetic tape (9 track only) |

Updated 30-Jan-2007 by Bob Supnik (simh AT trailing-edge DOT com - anti-spam encoded)