Computer Organization and Architecture MCQ

Are you guys looking for computer science MCQ Questions with Answers PDF Free Download as per computer science new exam pattern? You came to the right page. This may assist you to understand and check your knowledge about the Subjects. Students also can take a free test of the Multiple Choice Questions of computer science. Each question has four options followed by the right answer. These computer science MCQ Questions are selected supported by the newest exam pattern.

Q1. In Reverse Polish notation, expression AB+CD is written as

(A) ABCD+
(B) ABCD+
(C) ABCD+
(D) ABCD+

Answer: (A) ABCD+

Q2. In signed-magnitude binary division, if the dividend is (11100) 2 and divisor is (10011) 2 then the result is

(A) (00100) 2
(B) (10100) 2
(C) (11001) 2
(D) (01100) 2

Answer: (B) (10100) 2

Q3. A micro-program sequencer

(A) Generates the address of next micro instruction to be executed
(B) Generates the control signals to execute a microinstruction
(C) Sequentially averages all microinstructions in the control memory
(D) Enables the efficient handling of a micro program subroutine

Answer: (A) Generates the address of next micro instruction to be executed

Q4. The information available in a state table may be represented graphically in a

(A) Simple diagram
(B) State diagram
(C) Complex diagram
(D) Data flow diagram

Answer: (B) State diagram

Q5. When a word is to be written in an associative memory, address has got to be given.

(A) True
(B) False

Answer: (B) False

Q6. Von Neumann architecture is _.

(A) SISD
(B) SIMD
(C) MIMD
(D) MISD

Answer:(A) SISD

Q7. The BSA instruction is________.

(A) Branch and store accumulator
(B) Branch and save return address
(C) Branch and shift address
(D) Branch and show accumulator

Answer: (B) Branch and save return address

Q8. SIMD represents an organization that _.

(A) Refers to a computer system capable of processing several programs at the same time
(B) Represents organization of single computer containing a control unit, processor unit and a memory unit
(C) Includes many processing units under the supervision of a common control unit
(D) None of the above

Answer: (C) Includes many processing units under the supervision of a common control unit

Q9. Virtual memory consists of

(A) Static RAM
(B) Dynamic RAM
(C) Magnetic memory
(D) None of these

Answer: (A) Static RAM

Q10. A binary digit is called a

(A) Bit
(B) Byte
(C) Number
(D) Character

Answer: (A) Bit

Q11. Content of the program counter is added to the address part of the instruction in order to obtain the effective address is called.

(A) Relative address mode
(B) Index addressing mode
(C) Register mode
(D) Implied mode

Answer: (A) Relative address mode

Q12. When two equal numbers are subtracted, the result would be and not__.

(A) +ZERO, -ZERO
(B) ZERO, ZERO
(C) +ZERO, ONE
(D) ONE, ZERO

Answer:(A) +ZERO, -ZERO

Q13. Computers use addressing mode techniques for _.

(A) Giving programming versatility to the user by providing facilities as pointers to memory counters for loop control
(B) To reduce no. of bits in the field of instruction
(C) Specifying rules for modifying or interpreting address field of the instruction
(D) All the above

Answer: (D) All the above

Q14. A floating point number that has a O in the MSB of mantissa is said to have________.

(A) Overflow
(B) Underflow
(C) Important number
(D) Undefined

Answer: (B) Underflow

Q15. Floating point representation is used to store

(A) Boolean values
(B) Whole numbers
(C) Real integers
(D) Integers

Answer: (C) Real integers