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- Question
Binary number 1101.101 is equivalent to decimal number?
Options- A. 13.5
- B. 13.75
- C. 13.625
- D. 13.875
- Correct Answer
- 13.625
ExplanationBinary .101 equals 0.625 in decimal.
Microprocessors problems
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- 1. MICR stands for
Options- A. Magnetic Ink Chart Receipt
- B. Magnetic Ink Character Recognition
- C. Magnetic Ink Chart Recognition
- D. Magnetic Ink Character Receipt Discuss
Correct Answer: Magnetic Ink Character Recognition
Explanation:
Magnetic ink character recognition is used in banking.- 2. IC (instruction cycle), FC (fetch cycle) and EC (executive cycle) are related as
Options- A. IC = FC - EC
- B. IC = FC + EC
- C. IC = FC + 2EC
- D. EC = IC + EC Discuss
Correct Answer: IC = FC + EC
Explanation:
Instruction cycle consists of fetch and execute cycles.- 3. Computer virus can hide itself in a diskette but not in a hard disk.
Options- A. True
- B. False Discuss
Correct Answer: False
Explanation:
Computer virus can hide in hard disk also.- 4. Consider the following C program int ram
float alpha, gamma
ram = 6400
alpha = 0.562
gamma = alpha * ram + 1
Now consider the following statements about this program- ram is an integer variable
- alpha, gamma are real variables
- *, + are arithmetic operators
- 0.562 may be an integer constant or real constant
Options- A. All
- B. 1, 2, 3 only
- C. 2, 3, 4 only
- D. 1, 2, 4 only Discuss
Correct Answer: 1, 2, 3 only
Explanation:
0.562 is not an integer constant.- 5. Which of the following is not a valid variable name in C?
Options- A. 1 a
- B. a 1 2
- C. a b 123
- D. a b c 123 Discuss
Correct Answer: 1 a
Explanation:
First character must be alphabet.- 6. The number of storage classes in C is
Options- A. 2
- B. 3
- C. 4
- D. 6 Discuss
Correct Answer: 4
Explanation:
C has four storage classes viz. automatic storage class, register storage class, static storage class and external storage class.- 7. Consider the following DO statement in Fortran 77
DO 52 N = 1, 10, 3
The number of DO loop executions in the above statement is
Options- A. 1
- B. 10
- C. 3
- D. 4 Discuss
Correct Answer: 4
Explanation:
Do statement is executed when N = 1, 4, 7, 10, i.e., a total of 4 times.- 8. Which of the following is not a valid variable name in C?
Options- A. p o, t
- B. p o t
- C. po_t
- D. p_ot Discuss
Correct Answer: p o, t
Explanation:
Comma is not allowed.- 9. To evaluate X = (A + B + 1.2) * (A + B - C) the sequence of operation is
Options- A. + + + - * =
- B. * + + + - =
- C. + + - * + =
- D. - + + + * = Discuss
Correct Answer: + + + - * =
Explanation:
Parenthesis has first priority.- 10. In a microprocessor
Options- A. all instructions need only one machine cycle
- B. some instructions need only one machine cycle while some other instructions need more than one machine cycle
- C. all instructions need only fraction of one machine cycle
- D. some instructions need less than one machine cycle Discuss
Correct Answer: some instructions need only one machine cycle while some other instructions need more than one machine cycle
Explanation:
Some instructrions do need more than one machine cycle.
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