Q1. smallest unit of computer memory is
(A) byte
(B) a bit
(C) kilobyte
(D) none of these

Q2. binary number require ____ states or digits
(A) one
(B) two
(C) zero
(D) none of these

Q3. Which of the following is the Universal Logic Gate?
(A) AND
(B) NAND
(C) NOT
(D) OR

Q4. Which flip flop is called as frequency divider?
(A) Data
(B) Toggle
(C) JK
(D) SR

Q5. Which of the following gate is parity generator?
(A) ex-or
(B) ex-nor
(C) or
(D) serial adder

Q6. In AND gate ,what is output if all input will be one
(A) zero
(B) one
(C) both
(D) neither

Q7. Logical shift right circuit can be used to implement?
(A) divide by 4 circuit
(B) divide by 8 circuit
(C) divide by 2 circuit
(D) divide by 1 circuit

Q8. what is the long form of RAM
(A) Read acces memory
(B) Red access memory
(C) Randam access memory
(D) read only memories

Q9. which counter use in digital voltmeter?
(A) decode
(B) decade
(C) ancade
(D) cade

Q10. In 8 bit microprocessor , 8 bit refers to ?
(A) size of accumulator register
(B) size of stack pointer
(C) size of address line
(D) size of control line

Q11. find the odd one.
(A) NAND GATE
(B) NOR GATE
(C) XOR
(D) flip flop

Q12. stair case logic circuit is example of ______
(A) or
(B) and
(C) xor
(D) nand

Q13. universal logic gate is......
(A) OR
(B) AND
(C) NAND
(D) XOR

Q14. In computer memory size, Kilo equals to
(A) 1000
(B) 1024
(C) 100
(D) 10000

Q15. Binary equivalent of (45)10 is
(A) 11101
(B) 11110
(C) 101101
(D) 110101

Q16. Which of the following use least power
(A) TTL
(B) ECL
(C) CMOS
(D) a&b

Q17. which one of the following will give the sum of full address as output
(A) 3 input majority circuit
(B) 3 input parity checker
(C) 3 bit comparator
(D) 3 bit counter

Q18. the decimal equivalent of the hexadecimal number E5 is
(A) 279
(B) 229
(C) 427
(D) 3000

Q19. the number of comparators required in a 3bit comparator type ADC is
(A) 2
(B) 3
(C) 7
(D) 8

Q20. the minimum number of 2 and 1 multiplexers required to realize a 4 to 1 multiplexer is
(A) 1
(B) 2
(C) 3
(D) 4

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