The I/O devices which come standard on the ASIST are: an alphanumeric keyboard and 43 programmable function keys, all with click action; a pressure sensitive area for graphics input with approximately 100 dots/inch resolution; a liquid crystal display of 256 x 64 dots or 8 lines of 40 characters per line; a
calendar clock readable in year, month, day, hour, minute and seconds; an acoustically coupled modem and a transmitter/receiver for optical connection to a stand with an RS232 interface.