The display of Xerox 820 is a 24-line CRT, it has a bulky 96-character keyboard and its communication ports are two 25-pin RS-232 which was introduced in 1960.
The display of Xerox 820 is a 24-line CRT, it has a bulky 96-character keyboard and its communication ports are two 25-pin RS-232 which was introduced in 1960.