3 ms·

Consider a VT100. It could only go up to 19200 baud… The VMS manuals suggested that system administrators may want to keep the hard wired terminals down to 240

by jws 7y ago

Consider a VT100. It could only go up to 19200 baud… The VMS manuals suggested that system administrators may want to keep the hard wired terminals down to 2400 buad and hide the fact from users by turning on "smooth scroll" (which only scrolled about that fast anyway) in order to keep the interrupt load down on the Vax. Something about batching of interrupts on the multiport serial cards.

GekkePrutser 7y ago
Yes there was that but it also just couldn't handle the full speed continuously. It depended a lot what kind of commands were sent. Full text was fairly OK but drawing commands took a while as far as I remember. In any case, flow control was a must-have in those days. Either CTS/RTS or at least XON/XOFF