1. Translation from symbolic program into Binary is done in_____.
Correct : A. . two passes.
2. The instruction ‘ORG O’ is a______.
Correct : B. . pseudo instruction.
3. ‘Aging registers’ are _______.
Correct : A. . counters which indicate how long ago their associated pages have been referenced.
4. Memory unit accessed by content is called______.
Correct : D. . associative memory
5. _________ register keeps tracks of the instructions stored in program stored in memory.
Correct : C. . pc (program counter)
6. n bits in operation code imply that there are ___________ possible distinct operators.
Correct : B. . 2n
7. A three input NOR gate gives logic high output only when_____.
Correct : D. . all input are high
8. The circuit converting binary data in to decimal is_____.
Correct : D. .code converter
9. The multiplicand register & multiplier register of a hardware circuit implementing booth’s algorithm have (11101) & (1100). The result shall be ______.
Correct : A. . (812)10
10. PSW is saved in stack when there is a _____.
Correct : A. . interrupt recognized
11. In computers, subtraction is carried out generally by____.
Correct : B. . 2’s complement method
12. The main memory in a Personal Computer (PC) is made of_____.
Correct : D. . both (a).and (b).
13. Cache memory works on the principle of_____.
Correct : C. . locality of reference
14. An n-bit microprocessor has_____.
Correct : D. . n-bit instruction register
15. When CPU is executing a Program that is part of the Operating System, it is said to be in _____.
Correct : B. . system mode
16. Logic X-OR operation of (4ACO)H& (B53F)H results _____.
Correct : C. . ffff
17. Then each word of cache memory shall be_____.
Correct : C. . 16 bits
18. A Stack-organised Computer uses instruction of _____.
Correct : C. . zero addressing
19. In a program using subroutine call instruction, it is necessary______.
Correct : D. . clear the instruction register
20. Virtual memory consists of _______.
Correct : A. . static ram
21. In signed-magnitude binary division, if the dividend is (11100)2 and divisor is (10011)2 then the result is ______.
Correct : B. . (10100)2
22. Generally Dynamic RAM is used as main memory in a computer system as it______.
Correct : B. . has higher speed
23. Write Through technique is used in which memory for updating the data_____.
Correct : D. . cache memory
24. Cache memory acts between_______.
Correct : A. . cpu and ram
25. The circuit used to store one bit of data is known as ______.
Correct : C. . flip flop
26. Von Neumann architecture is ______.
Correct : A. . sisd
27. In a vectored interrupt.
Correct : B. . the interrupting source supplies the branch information to the processor through an interrupt vector.
28. . In a memory-mapped I/O system, which of the following will not be there?
Correct : A. . lda
29. If memory access takes 20 ns with cache and 110 ns without it, then the ratio (cache uses a 10 ns memory) is _____.
Correct : B. . 90%
30. The addressing mode used in an instruction of the form ADD X Y, is _____.
Correct : C. . index
31. _________ register keeps track of the instructions stored in program stored in memory.
Correct : C. . pc (program counter)
32. The idea of cache memory is based ______.
Correct : A. . on the property of locality of reference
33. Which of the following is not a weighted code?
Correct : B. . excess 3-cod
34. The average time required to reach a storage location in memory and obtain its contents is called the _____.
Correct : C. . access time
35. (2FAOC)16 is equivalent to _____.
Correct : B. . (001011111010 0000 1100)2
36. The circuit used to store one bit of data is known as_______.
Correct : D. . flip flop
37. . Computers use addressing mode techniques for ____________.
Correct : D. . all the above
38. What characteristic of RAM memory makes it not suitable for permanent storage?
Correct : C. . it is volatile
39. rotational latency, and transfer time. Rotational latency refers to ______.
Correct : A. . the time its takes for the platter to make a full rotation
40. In computers, subtraction is generally carried out by ______.
Correct : D. . 2’s complement
41. Assembly language ________.
Correct : A. . uses alphabetic codes in place of binary numbers used in machine language
42. the number of cycles required for transfer stayed the same what would the bandwidth of the bus?
Correct : D. . 2 megabytes/sec
43. Floating point representation is used to store ______.
Correct : C. . real integers
44. SIMD represents an organization that ______________.
Correct : C. . includes many processing units under the supervision of a common control unit
45. In Reverse Polish notation, expression A*B+C*D is written as
Correct : A. . ab*cd*+
46. Processors of all computers, whether micro, mini or mainframe must have
Correct : B. . primary storage
47. What is the control unit’s function in the CPU?
Correct : C. . to perform logic operations
48. What is meant by a dedicated computer?
Correct : D. . which is meant for application software only
49. Which of the following code is used in present day computing was developed by IBM corporation?
Correct : D. . ebcdic code
50. When a subroutine is called, the address of the instruction following the CALL instructions stored in/on the
Correct : D. . stack
51. A microprogram written as string of 0’s and 1’s is a
Correct : D. . binary microprogram
52. Interrupts which are initiated by an instruction are
Correct : B. . external
53. Memory access in RISC architecture is limited to instructions
Correct : C. . sta and lda
54. A collection of lines that connects several devices is called …………..
Correct : A. . bus
55. A complete microcomputer system consist of ………..
Correct : D. . all of the above
56. PC Program Counter is also called ……………….
Correct : A. . instruction pointer
57. In a single byte how many bits will be there?
Correct : A. . 8
58. CPU does not perform the operation ………………
Correct : A. . data transfer
59. The access time of memory is …………… the time required for performing any single CPU operation.
Correct : A. . longer than
60. Memory address refers to the successive memory words and the machine is called as …………
Correct : A. . word addressable
61. A microprogram written as string of 0’s and 1’s is a ………….
Correct : D. . binary microprogram
62. A pipeline is like ………………..
Correct : A. . an automobile assembly line
63. Data hazards occur when ……
Correct : B. . pipeline changes the order of read/write access to operands
64. Where does a computer add and compare data?
Correct : C. . cpu chip
65. the next instruction is located?
Correct : D. . program register
66. A complete microcomputer system consists of
Correct : D. . all of above
67. Pipelining strategy is called implement
Correct : C. . instruction decoding
68. A stack is
Correct : A. . an 8-bit register in the microprocessor
69. A stack pointer is
Correct : A. . a 16-bit register in the microprocessor that indicate the beginning of the stack memory.
70. The branch logic that provides decision making capabilities in the control unit is known as