Q1. LSI stands for
(A) Large Symbol Integration
(B) Large scale integration
(C) Large scale invertor
(D) Large Symbol invertor
Answer: Large scale integration
Explanation:
Q2. Dynamic RAMs are best for
(A) fast system
(B) large systems
(C) slow systems
(D) small systems
Answer: large systems
Explanation:
Q3. Data bus is
(A) unidirectional and three state
(B) bi-directional and three state
(C) unidirectional and bidirectional
(D) none of the above
Answer: bi-directional and three state
Explanation:
Q4. The main advantage of dynamic RAM over Static RAM is
(A) non volatile
(B) easier to use
(C) less expensive
(D) all of the above
Answer: less expensive
Explanation:
Q5. The purpose of ALU is to
(A) fetch the opcode
(B) control the address bus
(C) perform arithmetic and logical operations
(D) all of the above
Answer: perform arithmetic and logical operations
Explanation:
Q6. In gray code, consecutive numbers changed by
(A) two bits
(B) one bit
(C) three bits
(D) zero bits
Answer: one bit
Explanation:
Q7. Boolean logic is concerned with
(A) hexadecimal numbers
(B) decimal numbers
(C) octal numbers
(D) binary numbers
Answer: binary numbers
Explanation:
Q8. Highest noise margin is offered by
(A) TTL
(B) ECL
(C) CMOS
(D) BICMOS
Answer: CMOS
Explanation:
Q9. BJT devices are useful when
(A) low power dissipation is needed
(B) high speed is needed
(C) high noise margin is required
(D) none of the above
Answer: high speed is needed
Explanation:
Q10. How many interrupts are there in 8085 micro-processor
(A) 2
(B) 3
(C) 4
(D) 5
Answer: 5
Explanation:
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