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COA-CT2-B1(466-492)

Authored by Nagaraju N

English

University

Used 1+ times

COA-CT2-B1(466-492)
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30 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The register that holds the memory address of data is:

MDR

PC

MAR

IR

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The register that holds the instruction currently being executed is:

MDR

IR

MAR

R1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

MAR stands for:

Memory Address Register

Main Arithmetic Register

Machine Address Register

Memory Access Request

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

MDR stands for:

Machine Data Register

Memory Data Register

Main Decoder Register

Memory Device Register

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A system bus typically consists of:

Data, Control, Address lines

Only Data lines

Only Control lines

Only Address lines

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Subtraction microoperation is performed using:

ADD and 2's complement

SUB directly

AND gate

OR gate

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The microoperation R1 ← R1 - 1 is:

DEC

INC

CMA

CLR

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