From Computer History Wiki
|Manufacturer:||Digital Equipment Corporation|
- it was the first PDP-11 to essentially use a microprocessor (although the LSI-11 chip set was 4 chips, not 1, it was effectively a microprocessor);
- it was the first to use a new system bus, the QBUS, which used fewer lines (thus allowing cards which plugged into QBUS backplanes to have fewer contact fingers), thereby reducing costs.
- 1975. With the use of LSI semiconductor technology (the LSI-11 and LSI-11/2 processor), it was a compact implementation of the -11 architecture. It was limited though, to 32KW memory, only one processor operating mode, and limited floating-point instructions (the FIS). Available options: CIS, WCS, EIS/FIS.
- The /03 used the new LSI bus, later known as the QBUS, and was aimed at the low-end market, as the successor of the /05. The slowest of the -11s (one third of the 11/20's performance).
- -11/03 - documentation at Bitsavers
- LSI-11 Systems Service Manual - Volume III (EK-LSIFS-SV-005)
- lsi11 pdp11/03 processor handbook
- A source handbook for Digital Equipment Corporation LSI-11-compatible products
|v • d • e PDP-11 Computers and Peripherals|
| UNIBUS PDP-11s - PDP-11/20 • PDP-11/15 • PDP-11/35 • PDP-11/40 • PDP-11/45 • PDP-11/50 • PDP-11/55 • PDP-11/70|
PDP-11/05 • PDP-11/10 • PDP-11/04 • PDP-11/34 • PDP-11/60 • PDP-11/44 • PDP-11/24 • PDP-11/84 • PDP-11/94
Also: PDP-11 architecture • PDP-11 Extended Instruction Set • FIS floating point • FP11 floating point • PDP-11 Commercial Instruction Set • PDP-11 Memory Management • PDP-11 stacks • PDP-11 family differences