The PDP 11/04 is a Unibus based 16-bit minicomputer manufactured by Digital Equipment Corporation.
It was introduced in 1976 and is low cost version of a PDP 11/34. It does not have memory management and does not support Commercial Instruction Set and Floating Point. It supports a maximum of 64 KBytes of memory.
This 11/04 contains the following boards:
Slot# Module# Option Description
1 M7263 KD11-D 11/04 processor module
2 M7847-DJ MS11-JP 16-Kword 18-bit RAM
3 M7847-DJ MS11-JP 16-Kword 18-bit RAM
4 M9312 Bootstrap terminator with 5 empty ROM sockets
4 M7859 KY11-LB Console interface; programmer's console
5 M7856 DL11-W RS-232 SLU & realtime clock option
6 M7856 DL11-W RS-232 SLU & realtime clock option
7 M7856 DL11-W RS-232 SLU & realtime clock option
8 G7273 Bus Grant & Non-processor grant
9 M8256 RX211 RX02 floppy disk controller
Boot PROMS: PROM #1 RX02
Switch: 1100001000 (1->10)