6 ms·
But why was the Hollerith card 80 chars wide in the first place?
by unhammer 12y ago
But why was the Hollerith card 80 chars wide in the first place?
- kps 12y agoWell, it was 45 columns wide in the first place. But the 80 columns of the IBM revision is what you can squeeze into a letter size typewritten line at 10cpi, and that in turn is because, less margins, you get the ~65 characters long considered ideal for printed text.