Artifact Details

Title

Card from a Card-Capacitor Read-Only Store (CCROS), System/360 Model 30

Catalog Number

102630209

Type

Physical object

Date

1965 ca.

Manufacturer

International Business Machines Corporation (IBM)

Identifying Numbers

Other number 836804 In upper left corner

Dimensions

overall: 1/8 in x 7 1/4 in x 3 1/4 in

Description

This is an example of the "information document" that would be used to store information in an IBM Printed Card CROS unit. The information document was the same size as a standard IBM punched card so that it could be prepared by using a standard keypunch machine to punch the holes used to code data on the card.

Category

Memory: other

Subject

Memory; Storage; microprogramming; microcode

Credit

Gift of Brian Knittel

Lot Number

X2578.2004