Historic Computing Lab

MicroPDP-11/83

picture of MicroPDP-11/83
MicroPDP-11/83

The PDP–11 is a series of 16-bit minicomputers sold by Digital Equipment Corporation (DEC) from 1970 into the late 1990s, one of a set of products in the Programmed Data Processor (PDP) series. In total, around 600,000 PDP-11s of all models were sold, making it one of DEC's most successful product lines. The PDP-11 is considered by some experts to be the most popular minicomputer.

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Category: DEC
Make: Digital Equipment Corporation
Year: 1983
OS: RT-11
Status: Working
Hardware: Workstation
Battery: Not Inspected
Barcode: 32775905804778
Date Tested: 2020-10-01
Inventory #: X0044
Donor: Robert Ferguson
Notes: Serial number KA02745
Complete MicroPDP-11/83 system in a BA23 pedestal cabinet (upgraded from MicroPDP-11/23 at some point during its lifetime, per label on rear).
2MB ECC “private memory interconnect” RAM
Original 42MB DEC RD-32A hard disk (Seagate ST251A)
RX50 dual floppy drive
Boards:
M8190-AE KJD11-BF Q PDP-11/83 CPU (includes cab-kit)
M8637-EC MSV11-JE Q 2MB ECC RAM, PMI
M7555 RQDX3 Q MFM Winchester and floppy disk controller
M7513 RQDXE Q RQDX extender for RQDX2/3
Spare, not installed:
M8043 DLVJ1-M Q 4-Line Asynchronous Interface (formerly DLV11-J)(includes cab-kit)

Excellent vintage condition. In a medical research facility for entire working lifetime; was well maintained and very clean. Plastic is nicely intact throughout.

RT-11 v5.4g freshly installed. Passes all diagnostics. Boots and runs, all lights, switches, and indicators function. Connect serial terminal to console port at rear; boots to RT-11 automatically

RT-11 v 5.4g install diskettes (non-original)
XXDP RQ controller diagnostics and utilities (required for low-level format of hard disk)

Could be configured to run multi-user Ultrix-11 or 2.11BSD using included serial port controller and cab kit.

Page last modified: 2021-10-07 14:26:25