3 ms·
Clearly, since they barely know the system they are talking about but could you elaborate instead of leaving it vague? Which systems?
by guerrilla 7y ago
Clearly, since they barely know the system they are talking about but could you elaborate instead of leaving it vague? Which systems?
- jes5199 7y agothere’s plenty of other comments that explain it, but, CP/M, VAX, teletypewriters, punch cards - all used in-band control characters rather than an external signal