A Cro-based Student Computer Terminal

Abstract

An investigation has been carried out to design and test an alphanumeric-based student computer terminal at a reasonably low cost. The terminal is based on the CDP 1802 CPU with the CRO aS the display medium and an upper-case only character generating ROM. The display dot positions are addressed by binary counters which are driven by the same clock signal as for the microprocessor for synchronised display. It is designed to use a software-controlled keyboard with no encorder..