Q1. How many bits are needed to locate 128k memory locations?
(A) 32
(B) 17
(C) 8
(D) 32
Answer: 17
Explanation:
Q2. EX-OR Gate can work as NOT Gate provided
(A) one input is fixed at logic level 1
(B) one input is fixed at logic level 0
(C) by shorting both inputs
(D) none of the above
Answer: one input is fixed at logic level 1
Explanation:
Q3. diode is a
(A) passive device
(B) active device
(C) literal
(D) none of these
Answer: passive device
Explanation:
Q4. CMOS has ________ power consumption
(A) high
(B) medium
(C) low
(D) none of the above
Answer: low
Explanation:
Q5. a 64 bit word consist of ________ bytes
(A) 8
(B) 16
(C) 4
(D) 32
Answer: 8
Explanation:
Q6. dynamic memory cells store a data bit in a
(A) flip flop
(B) diode
(C) resistor
(D) capacitor
Answer: capacitor
Explanation:
Q7. fan-out is specifies in terms of
(A) voltage
(B) current
(C) unit loads
(D) wattages
Answer: unit loads
Explanation:
Q8. 00 represents a pixel they pixel is known as
(A) light grey
(B) black pixel
(C) dark grey pixel
(D) white pixel
Answer: black pixel
Explanation:
Q9. Minimum NAND gates required for a FULL ADDER is
(A) 7
(B) 9
(C) 8
(D) 6
Answer: 9
Explanation:
Q10. Rom programmed during manufacturing process itself is called as
(A) PROM
(B) EPROM
(C) EEPROM
(D) MROM
Answer: MROM
Explanation:
Q11. what is Boolean algebra known as
(A) gate algebra
(B) transistor algebra
(C) switching algebra
(D) counting algebra
Answer: Switching algebra
Explanation:
Q12. In digital system 1 byte is equal to how many bits
(A) 1
(B) 4
(C) 8
(D) 2
Answer: 8
Explanation:
Q13. a nibble is equal to how many bits ?
(A) 2
(B) 4
(C) 8
(D) 16
Answer: 4
Explanation:
Q14. A digital circuit that can store on a bit is a ?
(A) Xor gate
(B) Flip flop
(C) Gate
(D) Register
Answer: Flip flop
Explanation:
Q15. Binary number system has how many digits ?
(A) 0
(B) 1
(C) 4
(D) 2
Answer: 2
Explanation:
Q16. which of the following is digital device ?
(A) Regulator of a fan
(B) microphone
(C) resistance of a material
(D) light switch
Answer: light switch
Explanation:
Q17. A three state buffer gives output as ?
(A) set reset halt
(B) high low float
(C) Both of these
(D) None
Answer: high low float
Explanation:
Q18. which is a vectored interrupt from following ?
(A) TRAP
(B) RST 7.5
(C) RST 6.5
(D) INTR
Answer: INTR
Explanation:
Q19. In digital techniques which are said to be universal gate ?
(A) Nor Nand
(B) Or Nor Exor
(C) Nand And
(D) And Nand Xor
Answer: Nor Nand
Explanation:
Q20. D flip flop is said transparent when
(A) output is low
(B) output is high
(C) output follows clock
(D) output follows input
Answer: output follows input
Explanation:
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