Microprocessors problems
- 1. Which of the following can be accessed only sequentially?
Options- A. Floppy disk
- B. Hard disk
- C. Magnetic tape
- D. ROM Discuss
Correct Answer: Magnetic tape
Explanation:
Magnetic tape can be accessed only sequentially.
- 2. In
ALU 1C 74181 the addition and subtraction is in
Options- A. 2's complement
- B. 1's complement
- C. binary
- D. none of the above Discuss
Correct Answer: 2's complement
Explanation:
2's complement is universally used in computers.
- 3. Which of the following is a computer language?
Options- A. MS WORD
- B. Page maker
- C. MS EXCEL
- D. LISP Discuss
Correct Answer: LISP
Explanation:
LISP is a computer language. The remaining are software packages.
- 4. During processing the instructions, data, intermediate results and final results in a computer are held in
Options- A. CPU
- B. ALU
- C. Primary memory
- D. Secondary memory Discuss
Correct Answer: Primary memory
Explanation:
Primary memory holds these during processing of instructions.
- 5. When .4546 E 5 and .5433 E 7 are to be added in normalized floating point mode
Options- A. none of the numbers is changed to any other form
- B. .4546 E 5 is changed .004546 E 7 and .5433 E 7 is not changed
- C. .5433 E 7 is changed to 54.33 E 5 and .4546 E 5 is not changed
- D. both the numbers are changed and their exponents are made equal to 6 Discuss
Correct Answer: .4546 E 5 is changed .004546 E 7 and .5433 E 7 is not changed
Explanation:
Exponents are made equal and integer part is made zero.
- 6. Expression ++i is equivalent to
Options- A. i = i + 2
- B. i = i + 1
- C. i = i - 1
- D. i = i + i + i Discuss
Correct Answer: i = i + 1
Explanation:
i is incremented by 1.
- 7.
JCOKE = 3
JCOKE = JCOKE + 1
GO TO (5, 8, 9, 11, 15, 16 18, 20) JCOKE.
After the execution of above statement, the control is transferred to statement number
Options- A. 8
- B. 11
- C. 16
- D. 20 Discuss
Correct Answer: 11
Explanation:
It is a computed GO TO statement. Since J COKE = 3 + 1 = 4, the control is transferred to statement 11.
- 8. The size of cache memory in most microcomputers is about
Options- A. a few bytes
- B. a few kilobytes
- C. a few megabytes
- D. a few gigabytes Discuss
Correct Answer: a few kilobytes
Explanation:
Size of Cache memory varies from about 16 K bytes to about 256 K bytes.
- 9. Temporary register in 8085 is a 16 bit register.
Options- A. True
- B. False Discuss
Correct Answer: False
Explanation:
It is 8 bit-register.
- 10. In which computer language is 'break' statement used
Options- A. Fortran 77
- B. Pascal
- C. C
- D. none of the above Discuss
Correct Answer: C
Explanation:
Whenever keyword 'break' is encountered inside any C loop control passes to the first statement after the loop.
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