Question 42Asked in UGC NET Computer Science, June 2017 (Paper II & III, Selected Questions)

The general configuration of the micro programmed control unit is given below :

The general configuration of the micro programmed control unit is given below : (Diagram: External Conditions → Next Address Generator → B → C, with 'Next Address Information' fed back from C to the Next Address Generator.) What are blocks B and C in the diagram respectively?
  1. ABlock address register and cache memory
  2. BControl address register and control memory
  3. CBranch register and cache memory
  4. DControl address register and random access memory
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Correct answer: (B) Control address register and control memory

Explanation

In a microprogrammed control unit, the next address generator (sequencer) supplies the address to the control address register (B), which addresses the control memory (C); the control word read from control memory supplies the next address information. So B is the control address register and C is the control memory.

From UGC NET Computer Science PYQ, June 2017 (Paper II & III, Selected Questions)

This is question 42 of UGC NET Computer Science PYQ, June 2017 (Paper II & III, Selected Questions). See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.