Computer Organization & Architecture (3140707) MCQs

MCQs of Micro programmed Control Organization

Showing 1 to 10 out of 35 Questions
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1.
The function of control unit in a digital computer is?
(a) to initiate sequences of micro-operations
(b) to perform arithmetic operations
(c) to perform logical operations
(d) to perform I/O operations
Answer:

Option (a)

2.
Which of the following is not a standard method of implementing control unit?
(a) Hardwired control
(b) Softwired control
(c) Microprogrammed control
(d) All are valid
Answer:

Option (b)

3.
The key characteristics of Microprogrammed control is?
(a) Expensive
(b) Complex hardware
(c) RISC
(d) Flexibility of adding new instructions
Answer:

Option (d)

4.
In general, control memory can be?
(a) ROM
(b) RAM
(c) Both A & B
(d) None
Answer:

Option (a)

5.
Sequencer is another name of?
(a) Control address register
(b) Control data register
(c) Next address generator
(d) Control memory
Answer:

Option (c)

6.
Which block holds the present microinstruction while the next address is computed and read from memory?
(a) Control address register
(b) Control data register
(c) Next address generator
(d) Control memory
Answer:

Option (b)

7.
In Microprogrammed control, the data register is sometimes called?
(a) Accumulator
(b) Branch register
(c) Sequence register
(d) Pipeline register
Answer:

Option (d)

8.
Microinstructions are stored in control memory in groups, with each group specifying ________.
(a) microprogram
(b) mapping
(c) routine
(d) none
Answer:

Option (c)

9.
The transformation from the instruction code bits to an address in control memory where the routine is located is referred to as _________.
(a) mapping
(b) routine
(c) scaling
(d) converting
Answer:

Option (a)

10.
Which of the following is not address sequencing capability?
(a) Incrementing of CAR
(b) Microinstruction in data register
(c) Branch depending on status bits
(d) Facility for subroutine call and return
Answer:

Option (a)

Showing 1 to 10 out of 35 Questions
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