Memory unit is a part of _______.
A. punched card system.
B. electronic data processing.
C. both Punched card system and Electronic data processing.
D. both Punched card system and manually operated accounting machines.
Answer:B
Memory unit is a part of _______.
A. punched card system. B. electronic data processing. C. both Punched card system and Electronic data processing. D. both Punched card system and manually operated accounting machines.