Electronics and Communication Engineering - Microprocessors

1. 

Assertion (A): Microprocessor 8085 has 16 address bus lines and 8 data bus lines.

Reason (R): Address bus in 8085 is unidirectional.

A. Both A and R are correct and R is correct explanation of A
B. Both A and R are correct but R is not correct explanation of A
C. A is correct R is wrong
D. A is wrong R is correct

Answer: Option B

Explanation:

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2. 

IC 74181 has two select lines.

A. True
B. False

Answer: Option B

Explanation:

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3. 

Plug and play is a hardware specification.

A. True
B. False

Answer: Option A

Explanation:

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4. 

If the absolute value of a number is less than decimal 1, the sign of exponent in floating point representation is

A. zero
B. negative
C. zero or negative
D. positive

Answer: Option C

Explanation:

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5. 

Which of the following is not a library string function in C?

A. strlen
B. strcpy
C. strdup
D. strbig

Answer: Option D

Explanation:

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