Table of Content (toc)
1.A decimal no. has 30 digits. Approximately, how many would the binary representation have?
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30
2. Which one of the following is a characteristic of CISC (Complex Instruction Set Computer)
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Fixed format instructions
Variable format instructions
Instructions are executed by hardware
3.Which of the following is another name for a chip?
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Semiconductor
Silicon chip
Integrated circuit
4. Which of the following is a main memory
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Secondary memory.
Auxiliary memory.
Cache memory.
5. The logic circuit in ALU is
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Entirely combinational
Entirely sequential
Combinational cum sequential
6. CD-RW disk
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can be erased and rewritten
holds less data than a floppy disk
is a form of optical disk, so it can only be written once
7. A floating point number that has a O in the MSB of mantissa is said tohave_____.
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Overflow
Underflow
Important number
8. Equivalent hexadecimal of (76575372)s will be
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FAFAFA
FAFAFF
FFFAAA
9. Octal number system is
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A positional system with weights 0 to 9
A positional system with weights 0 to 8
A positional system with weights 0 to 7
10. A 4 digit BCD number can be represented with the help of
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10 bits
8 bits
12 bits
11. A truth table of the n variables has … Minterms
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N2
(n-1)2
2n
12. Which of the following shift operations divide a signed binary number of 2
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Logical left shift
Logical right shift
Arithmetic left shift
13. In computers, subtraction is generally carried out by ______.
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9’s complement
10’s complement
1’s complement
14. Assembly language ________.
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uses alphabetic codes in place of binary numbers used in machine language
is the easiest language to write programs
need not be translated into machine language
15. Which media has the ability to have data/information stored (Written) on them by users more than once?
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Opti-Disks
Zip disks
CD-RW disks
16. A floating point number that has a O in the MSB of mantissa is said tohave_____.
17. If you convert (+46.5) into a 24 bit floating point binary number following IEEE convention, what would be the exponent?
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00011100
0000011
1100010
18. Cray-11 holds
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16 bits of information
32 bits of information
64 bits of information
19. The circuit used to store one bit of data is known as ______.
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Encoder
OR gate
Flip Flop
20. The maximum number of additions and subtractions are required for which of the following multiplier numbers in Booth's algorithm
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01000 1111
0111 1000
0000 1111
21. Father of punched card processing was
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Blasé pascal
Charles Babbage
Dr. Herman Hollerith
22. ___ is a memory-memory vector machine and fetches vectors directly from memory to load the pipelines as well as stores the pipeline outcomes directly to memory.
- CCF Cyber 205
CCD Cyber 205
CDC Cyber 205
23. Fine-grain threading is considered as a ___ threading.
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Instruction-level
Loop level
Task-level
24. By logical left-shifting the content of a register once, its content is
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doubled
halved
both (a) and (b)
25. Floating point representation is used to store
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Boolean values
whole numbers
real integers
26. Floating point representation is used to store
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Boolean values
Whole numbers
Real numbers
27. The BUS that allows I/O, memory and Processor to coexist is
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Attributed BUS
Processor BUS
Backplane BUS
28. A Toggle Flip-Flop can be constructed using a J-K Flip-Flop by connecting the
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Toggle input to J and inverted form of toggle input to K
The toggle input to J
Inverted form of toggle input to K
29. Which memory unit has lowest access time?
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cache
registers
magnetic disk
30. A given memory chip has 12 address pins and 4 data pins. It has the ...... number of locations.
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2¹
2¹2
2¹8
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