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WorksheetsOCR 1.1 Systems Architecture Revision
Total questions: 16
Worksheet time: 7mins
Name
Class
Date
1.
What Does CPU stand for?
a)
Central Pizza Unit
b)
Central Processing Unit
c)
Control Unit
d)
Central Processer Unit
2.
What's Faster but less storage?
a)
Cache
b)
RAM
3.
What does the ALU stand for?
(a)
4.
Which of these are peripherals?
a)
Keyboard
b)
CPU
c)
RAM
d)
ALU
e)
Printer
5.
Processors have a speed measured in
a)
Hertz
b)
Bits
c)
Bytes
d)
Seconds
6.
Data and Instructions in use are stored in the
a)
Processor
b)
Embedded System
c)
Hard Disk Drive
d)
Main Memory
7.
Which of these doesn’t affect the performance of the computer?
a)
Clock Speed
b)
Number Of Cores
c)
Cache Size
d)
The Number Of Instructions In The Program
8.
If the number of cores goes up from 2 to 4 – what is the exact effect on performance?
a)
Performance Decreases
b)
The maximum number of instructions executed per second doubles
c)
The maximum number of instructions executed per second quadruples
d)
The maximum number of instructions executed per second is quartered
9.
The part of a processor in which instructions are executed is known as?
a)
Core
b)
Centre
c)
Execution
d)
Instruction Centre
10.
Question 19 If the processing speed goes up from 1GHZ to 4GHZ and the number of cores goes from 1 to 2 – what is the exact effect on the performance of the computer?
a)
Doubled
b)
Quadrupled
c)
Eight Times Faster
d)
Sixteen Times Faster
11.
This holds the instruction/data temporarily after it is brought to the processor from the main memor
a)
Memory Address Register
b)
Memory Data Register
c)
Program Counter
d)
Accumulator
12.
What acts as an intermediary between the processor and the Main Memory?
a)
Bus
b)
User
c)
Cache
d)
Clock
13.
What is held in cache?
a)
All of the programming instructions
b)
Commonly used instructions and data
c)
Instructions that have been processed
d)
Data that hasn’t been used for a long time
14.
What is the purpose of the CPU?
a)
Process data and instructions
b)
Controls components of the computer
c)
Fetches and executes instructions
d)
Central Processing Unit
15.
What is the name of the component that performs calculations and decisions?
a)
Central Processing Unit
b)
Arithmetic Logic Unit
c)
Accumulator
d)
Calculator
16.
The program counter and accumulator are examples of what components of a CPU
a)
Buses
b)
Components
c)
Processors
d)
Registers
Reset
