This section contains more frequently asked Computer Organization and Architecture MCQs-Multiple Choice Questions Answers in the various University Level and Competitive Examinations.
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1. In Reverse Polish notation, expression A*B+C*D is written as
- AB*CD*+
- A*BCD*+
- AB*CD+* (
- A*B*CD+
A. AB*CD*+
2. SIMD represents an organization that ______________
- refers to a computer system capable of processing several programs at the same time.
- represents organization of single computer containing a control unit, processor unit and a memory unit.
- includes many processing units under the supervision of a common control unit
- none of the above.
C. includes many processing units under the supervision of a common control unit
3. Floating point representation is used to store
- Boolean values
- whole numbers
- real integers
- integers
C. real integers
4. Assembly language
- 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
- None of these
A. uses alphabetic codes in place of binary numbers used in machine language
5. In computers, subtraction is generally carried out by
- 9’s complement
- 10’s complement
- 1’s complement
- 2’s complement
D. 2’s complement
6. The amount of time required to read a block of data from a disk into memory is composed of seek time, rotational latency, and transfer time. Rotational latency refers to
- the time its takes for the platter to make a full rotation
- the time it takes for the read-write head to move into position over the appropriate track
- the time it takes for the platter to rotate the correct sector under the head
- none of the above
A. the time its takes for the platter to make a full rotation
7. What characteristic of RAM memory makes it not suitable for permanent storage?
- too slow
- unreliable
- it is volatile
- too bulky
C. it is volatile
8. Computers use addressing mode techniques for _____________________
- giving programming versatility to the user by providing facilities as pointers to memory counters for loop control
- to reduce no. of bits in the field of instruction
- specifying rules for modifying or interpreting address field of the instruction
- All the above
D. All the above
9. The circuit used to store one bit of data is known as
- Register
- Encoder
- Decoder
- Flip Flop
D. Flip Flop
