
COA-CT2-B1(466-492)
Quiz
•
English
•
University
•
Practice Problem
•
Easy
Nagaraju N
Used 1+ times
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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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