When you say "standard," are you assuming that async is the only communication standard?

It may look that way from where you sit. From where I sit, however, it's too slow and inefficient to be practical. It works OK for a user-interface, a debug terminal, a printer, or something like that, but even internet communication gets away from that inefficient format as quickly as it can.

PC's are limited to async comm's because the guys who thought it up didn't figure on high-volume comm's. They were looking at the Apple-II as a model, though even that allowed for synchronous communication if you had a serious communication requirement.

What sort of "standard" stuff are you going on about? I'm sure there's lots of equipment that works with async-formatted data, but what do YOU mean?

RE