21. The minimum number of MOS transistors required to make a dynamic RAM cell is

A. 1
B. 2
C. 3
D. 4
E. None of the above

22. Conversion of an octal number 142₈ to binary number is

A. 1100010₂
B. 110110₂
C. 1100011₂
D. 1101101₂
E. None of the above

23. Which of the following is used as “Input device” for the computer?

A. Printer
B. VDU
C. TV
D. Light pen
E. None of the above

24. A machine associated with card-based data processing is

A. Codomain
B. Collator
C. Cartridge
D. Digitizer
E. None of the above

25. The most popular language used with microcomputers and time-shared mini computers, is an easy-to-use high level language.

A. COBOL
B. ADA
C. PASCAL
D. BASIC
E. None of the above