@th@unnick Computer manuals used to have a paragraph or two in the instructions reminding users to use the dedicated zero and one keys rather than O (OH) and l (ell). I would look up an example, but the Internet Archive is down.
@th@unnick The Archive is back up, so here's my favorite example, from the manual for the Jupiter Ace (a failed British microcomputer that ran Forth instead of BASIC). If you're not familiar with old microcomputers, the mentioned "television" is the standard television you would plug the computer into. Monitors are expensive and $200 was all the home market could support, so most micros of the '80s shipped with a composite output rather than a monitor.
Gregory's Server
@th @unnick The Archive is back up, so here's my favorite example, from the manual for the Jupiter Ace (a failed British microcomputer that ran Forth instead of BASIC).
If you're not familiar with old microcomputers, the mentioned "television" is the standard television you would plug the computer into. Monitors are expensive and $200 was all the home market could support, so most micros of the '80s shipped with a composite output rather than a monitor.