A-level computer science - 1.1.1 CPU Structure and Function
12th Grade
•22 Qs
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A-level computer science - 1.1.1 CPU Structure and Function
Quiz
•
Computers
•
12th Grade
•
Practice Problem
•
Easy
Chris Spencer
Used 13+ times
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22 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the ALU?
Carries out calculations and logical operations
Stores the most recently fetched instruction that is waiting to be decoded and executed
Stores the data that has been fetched from or stored in memory
Holds the address in memory of the next instruction to be fetched.
Stores the address of the data or instructions that are to be fetched from or sent to
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the CIR?
Carries out calculations and logical operations
Stores the most recently fetched instruction that is waiting to be decoded and executed
Stores the data that has been fetched from or stored in memory
Holds the address in memory of the next instruction to be fetched.
Stores the address of the data or instructions that are to be fetched from or sent to
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the MDR?
Stores the results of calculations made by the ALU
Stores the most recently fetched instruction that is waiting to be decoded and executed
Stores the data that has been fetched from or stored in memory
Holds the address in memory of the next instruction to be fetched.
Stores the address of the data or instructions that are to be fetched from or sent to
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the PC?
Stores the results of calculations made by the ALU
Stores the most recently fetched instruction that is waiting to be decoded and executed
Stores the data that has been fetched from or stored in memory
Holds the address in memory of the next instruction to be fetched.
Stores the address of the data or instructions that are to be fetched from or sent to
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the ACC?
Stores the results of calculations made by the ALU
Stores the most recently fetched instruction that is waiting to be decoded and executed
Stores the data that has been fetched from or stored in memory
Holds the address in memory of the next instruction to be fetched.
Stores the address of the data or instructions that are to be fetched from or sent to
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the MAR?
Stores the results of calculations made by the ALU
Stores the most recently fetched instruction that is waiting to be decoded and executed
Stores the data that has been fetched from or stored in memory
Holds the address in memory of the next instruction to be fetched.
Stores the address of the data or instructions that are to be fetched from or sent to memory
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The most recently fetched instruction which is waiting to be decoded and executed is stored in the...
MDR
MAR
CIR
ACC
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