So ive been thinking (that might not be good :) in the effort to eliminate usb devices what are do you use for mice and key boards? I understand ps/2 if you are using an OLD machine, im running a 5 yr old dell optiplex 640 dual core 2.8 ghz 2 gig ram and only an rs232 besides the parport. So can one use an rs 232 to usb adapter for human interface to avoid interupts? im not having problems just wondering and trying to reduce latency. Also can one use the rs232 for i/o in lieu of a parport card?
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