Artifact Details

Title

TOPS-20 v3-4 magnetic tapes

Catalog Number

102773679

Type

Software

Date

1979-1981

Publisher

Digital Equipment Corporation (DEC). Large Computer Group (LCG)

Extent

10 magnetic tape reels

Format

1/2" magnetic tape

Description

This box contains the following magnetic tape reels:
1) SWS kit v3A 1 of 2, AP-4178E-RM, 1600 BPI, Nov. 9, 1978 (T20-0012);
2) TOPS-20 v3A 2060 distribution tape, BB-H138A-BM, 1600 BPI, Dec. 28, 1978 (T20-0018);
3) TOPS-20 v3A monitor source, BB-4170G-SM, 1600 BPI, Oct. 14, 1978 (T20-0010);
4) TOPS-20 v4 2040 installation tape, BB-4171G-BM, 1600 BPI, July 15, 1980 (T20-0027);
5) TOPS-20 v4 2060 installation tape, BB-H137B-BM, 1600 BPI, April 17, 1981 (T20-0044);
6) TOPS-20 v4 2020 installation tape, BB-D867C-BM, 1600 BPI, June 17, 1981 (T20-0091);
7) TOPS-20 AN v4 installation tape, BB-5254D-BM, 1600 BPI, Sept. 15, 1981 (T20-0082);
8) TOPS-20 AN 2020 v4 installation tape, BB-J712A-BM, 1600 BPI, July 17, 1981 (T20-0097);
9) TOPS-20 AN v4 distribution tape 1/2, BB-5255D-BM, 1600 BPI, Sept. 11, 1981 (T20-0086);
10) TOPS-20 AN v4 distribution tape 2/2, BB-J711A-BM, 1600 BPI, Oct 20, 1981 (T20-0084).

Category

Memory & storage/tape

Collection Title

Digital Equipment Corporation records

Series Title

Engineers' papers: Tim Litt collection: Product development

Credit

Gift of Hewlett-Packard Company

Lot Number

X2675.2004