
OCR A-Level Computer Science: Topic 1.1 CPU Characterists

Quiz
•
Computers
•
12th Grade
•
Medium

Daniel Chandler
Used 3+ times
FREE Resource
30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which component is responsible for carrying out arithmetic and logical operations in the CPU?
Control Unit (CU)
Arithmetic Logic Unit (ALU)
Memory Address Register (MAR)
Accumulator
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of the control unit (CU) within the CPU?
Perform arithmetic calculations
Manage input/output devices
Decode and execute instructions
Store data
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which register holds the address of the next instruction to be fetched?
MAR
MDR
PC
ACC
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the Memory Data Register (MDR)?
Stores the result of ALU operations
Holds data being transferred to or from memory
Holds the current instruction
Stores addresses
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of processor executes one instruction at a time?
RISC
CISC
Dual-core
Multi-threaded
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which is an advantage of RISC architecture over CISC?
More complex instructions
Faster clock speed
Simpler hardware design
More power consumption
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which factor is least likely to affect CPU performance?
Clock speed
Number of cores
GPU model
Cache size
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