Artifact Details

Title

Fixed-head drum memory 2771A

Catalog Number

X207.83

Type

Physical object

Date

1969

Manufacturer

Hewlett-Packard Company (HP)

Place Manufactured

U.S.

Identifying Numbers

Model number 13415 Typed on DDC metal label located on left side of card cage. This is a model number for the magnetic memory drum.
Model number 13773 Typed on DDC metal label on right side of card cage. This is a model number for the read/write assembly.
Model number 2771A On front panel on left hand side.
Model number 2771A Option #1 Printed on HP metal label located on back shelf.
Other number Dec 17, 1968 This date is stamped in black ink on right side of card cage.
Other number Drum rpm 3600 Typed on DDC metal label located on left side of card cage.
Other number System serial no. 171B Printed on HP metal label located on back shelf.
Part number 13770 Typed on DDC metal label located on front shelf.
Serial number 000-00002 Printed on HP metal label located on back shelf.
Serial number 3 Typed on DDC metal label located on front shelf.
Serial number 41 Typed on DDC metal label located on left side of card cage.

Dimensions

front panel:; overall: 22 3/8 in x 19 in x 20 1/2 in

Description

This artifact has a 17 in cylinder at the top which houses the drum. There is a large front panel. The lower half can be removed to reveal a card cage containing eleven (11) printed circuit cards. In the middle of the front panel there are four (4) status lights. At the rear there is a bottle of helium connected to a pressure regulator. There are several interface connectors at back.

Category

Memory: drum

Credit

Gift of TSC Computer Ltd.

Lot Number

X207.83