Match List-I with List-II: Choose the correct option from those given below:
2019
Match List-I with List-II:
Choose the correct option from those given below:
- A.
(a)-(iv), (b)-(iii), (c)-(ii), (d)-(i) - B.
(a)-(iv), (b)-(iii), (c)-(i), (d)-(ii) - C.
(a)-(iii), (b)-(iv), (c)-(i), (d)-(ii) - D.
(a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
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Correct answer: A
Correct matching: (a) Micro operation → (iv) Elementary operation performed on data stored in registers; (b) Microprogrammed control unit → (iii) Control Memory; (c) Interrupts → (ii) Improve CPU utilization; (d) Microinstruction → (i) Specify micro operations.
Micro operation: An elementary operation performed on data held in registers (for example, register-to-register transfer, ALU operations).
Microprogrammed control unit: Uses control memory to store microinstructions that generate control signals for micro operations.
Interrupts: Allow asynchronous event handling (e.g., I/O requests), which helps improve CPU utilization by avoiding continuous polling and enabling the CPU to work on other tasks until an event occurs.
Microinstruction: Specifies the set of micro operations to be executed by the CPU for a given machine instruction.
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