Since the ASR33 that Bill and friends used was limited to 110 baud, there was no point in going faster. My 2 MHz 8080 easily handled 9600, which, with few exceptions in '76, was as fast as my dumb terminal would go.

Several Apple-][ products used a software UART as did a number of others.

Back then, as I mentioned earlier, UART's cost real money.

Of course a processor or an FDC were on the order of $100, too.

RE