Computer Science Questions and Answers C h apter - 1 C o nfig u ring a Computer Question Set 1 1. Name the comp o nents of CPU Ans. a) ALU b) PC c) Accumulator d) MAR e) IR f) ID g) MDR 2. What is the use of registe r s in CPU? Ans. I t is u s e d to store interm e d i ate d a t a and i n s t r u c t ions. 3. What is the function of M AR? Ans. I t s p ecifies t he ad d ress of m em o r y loca t i o n f r o m w h ich d a t a or instru c t ion is t o be a c cessed or t o whi c h the d ata is to be sto r ed. 4. What is the function of M D R / MBR? Ans. I t contains the d ata to be w r itten into or re a d f r om m e mory location addressed by MAR. 5. What is p r og r am counter? Ans. I t keeps t r ack of the memo r y ad d r ess of t he ins t r uc t ion
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