IBM 421
id:
ibm-421-200-12990397
title:
IBM 421
text:
The IBM 421 accounting machine saw use in the 1960s. The largely-mechanical IBM 421 read 80-column punch cards and could print upper-case letters of the alphabet, the decimal digits 0 to 9, a period (.), and plus and minus signs. The operation of the 421 was directed by the use of a removable control panel and a carriage tape. By means of the control panel, any column of the card could be wired to any print column, by means of a wire link. After manual wiring, the control panel was inserted in t
brand slug:
wiki
category slug:
encyclopedia
description:
Early computing device
original url:
https://en.wikipedia.org/wiki/IBM_421
date created:
date modified:
2024-03-11T19:29:26Z
main entity:
{"identifier":"Q5968670","url":"https://www.wikidata.org/entity/Q5968670"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/2/27/MNACTEC_keyboards_%2830316694693%29.jpg","width":4032,"height":3024}
fields total:
13
integrity:
15