Computer Organisation and Architecture | COA | MCQ

Question 1:
Processors of all computers, whether micro, mini or mainframe must have

1. ALU
2. Primary Storage
3. Control unit
4. All of above

Question 2:
What is the control unit’s function in the CPU?

1. To transfer data to primary storage
2. to store program instruction
3. to perform logic operations
4. to decode program instruction

Question 3:
What is meant by a dedicated computer?

1. which is used by one person only
2. which is assigned to one and only one task
3. which does one kind of software
4. which is meant for application software only

Question 4:
The most common addressing techiniques employed by a CPU is

1. immediate
2. direct
3. indirect
4. register
5. all of the above

Question 5:
Pipeline implement

1. fetch instruction
2. decode instruction
3. fetch operand
4. calculate operand
5. execute instruction
6. all of abve

Question 6:
Which of the following code is used in present day computing was developed by IBM corporation?

1. ASCII
2. Hollerith Code
3. Baudot code
4. EBCDIC code

Question 7:
When a subroutine is called, the address of the instruction following the CALL instructions stored in/on the

1. stack pointer
2. accumulator
3. program counter
4. stack

Question 8:
A microprogram written as string of 0’s and 1’s is a

1. symbolic microinstruction
2. binary microinstruction
3. symbolic microprogram
4. binary microprogram

Question 9:
Interrupts which are initiated by  an instruction are

1. internal
2. external
3. hardware
4. software

Question 10:
Memory access in RISC architecture is limited to instructions

1. CALL and RET
2. PUSH and POP
3. STA and LDA
4. MOV and JMP