Technical data on border-punched cards

✍ Scribed by Gunther Cohn

• Book ID: 103080750
• Publisher: Elsevier Science
• Year: 1958
• Tongue: English
• Weight: 133 KB
• Volume: 266
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/0016-0032(58)90352-1

✦ Synopsis

A versatile card catalog has been devised to serve as a readily accessible store of technical data. With over 100 bits of information per card, it is much more useful than a mere reference file.

Hand-sorted cards were chosen because they are easy to use and permit cross-reference in many ways. Such cards are border-punched to allow selection of key data by needle sorting. The file consists of 5" by 8" cards, with one card for each discrete item.

The Card contains Technical Data on the Front and a Sketch on the Back.

Convenient features were achieved by use of the various tricks of the trade on a card of new design. For example, it was apparent that space would not permit direct sorting (one item per hole) of all data. Hence, capacity was enlarged by use of more elaborate sorting methods (shallow, deep, and intermediate notches) for data that are sorted only rarely.