3 ms·
I remember in 1976 we were using mark sense cards to write programs, and we definitely had to slash the letter O. I think we also had to slash the Z to distingu
by dmolony 6y ago
I remember in 1976 we were using mark sense cards to write programs, and we definitely had to slash the letter O. I think we also had to slash the Z to distinguish it from a 7.
- HarryHirsch 6y agoI think the purpose of the Z-slash was to distinguish from the digit 2.