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GCSE Computer Science 1.1 - 1.3

Total questions: 31

Worksheet time: 16mins

Name
Class
Date
1.

What doesn’t affect the performance of the computer

a)

Clock Speed

b)

Number of Cores

c)

The number of instructions in the program

d)

Cache Size

2.

If the processing speed goes from 1GHZ to 4GHZ and the processor is changed from an 8 core to a dual core processor – what is the exact effect on the performance of the computer?

a)

The number of instructions executed per second quadruples

b)

The number of instructions executed per second doubles

c)

The number of instructions executed per second stays the same

d)

The number of instructions executed per second is halved

3.
Solid state drive
a)
Storage that works by storing the data in electronic circuits
b)
Storage that can be disconnected from the main computer unit, for example to transfer files between computers.
c)
Storage that uses a surface which can be magnetised to store data.
4.
What is an advantage of a CD?
a)
Easily scratched, leading to the loss of data
b)
Large storage capacity
c)
Expensive to buy
d)
Portable, easy to carry around
5.

What is an advantage of Cloud Computing?

a)

Can access your files anywhere

b)

It is safer

c)

Can access files anywhere you have internet

d)

Expensive

6.
In order of fastest to slowest with the fastest on the left and slowest on the right, name each type of memory in order.
a)
Cache > RAM > Hard Drive
b)
Hard Drive > RAM > Cache
c)
RAM > Cache > Hard Drive
d)
RAM > Hard Drive > Cache
7.

Which of the following shows the capacity of OPTICAL STORAGE MEDIA in the correct order (smallest to largest)?

a)

DVD > BLU RAY > CD

b)

CD > DVD > BLU RAY

c)

BLU RAY > DVD > CD

d)

DVD > CD > BLU RAY

8.

Which of the following would NOT be a suitable means for a wedding photographer to store pictures (choose as many as appropriate)?

a)

DVD

b)

USB Drive

c)

Magnetic Tape

d)

SD card

9.

The STORED PROGRAM CONCEPT means that computers...

a)

Have specific memory locations for instructions and specific memory locations for data

b)

Can store data and instructions anywhere within memory

10.

The CPU is....

a)

The part of a computer that inputs data

b)

The part of a computer that processes instructions

c)

The part of a computer that outputs data

d)

The part of a computer that permanently stores data

11.

Which of these ARE NOT parts of the CPU? (select as many as appropriate)

a)

Accumulator

b)

General Purpose Register

c)

Input Device

d)

PC (Program Counter)

e)

Output Device

12.

Either stores the address from which data will be fetched from the CPU, or the address to which data will be sent and stored.

a)

MAR (Memory Address Register)

b)

MDR (Memory Data Register)

c)

CIR (Current Instruction Register)

d)

PC (Program Counter)

e)

ALU (Arithmetic and Logic Unit)

13.

This register contains the address (location) of the instruction being executed at the current time

a)

MAR (Memory Address Register)

b)

MDR (Memory Data Register)

c)

CIR (Current Instruction Register)

d)

PC (Program Counter)

e)

ALU (Arithmetic and Logic Unit)

14.

Which of these clock speeds is the fastest:

a)

10 Mhz

b)

1 Mhz

c)

1 Ghz

d)

100 Mhz

15.

Which of the factors below can significantly impact the performance of a CPU? (choose as many as are appropriate)

a)

Clock Speed

b)

Cache Size

c)

Number of cores

d)

SSD (Solid State Drive)

16.

Which of the following statements are true? (select as many as appropriate)

a)

A dual-core CPU can run through the Fetch Execute Cycle, four times per second

b)

Overclocking is a safe way of improving CPU performance

c)

A quad-core CPU can carry out more Fetch Execute Cycles per second than a dual core CPU

d)

Overclocking can improve CPU performance

17.

A 2GHz Processor can process:

a)

2,000,000 instructions per second

b)

2,000,000,000 instructions per second

c)

20,000,000 instructions per second

d)

200,000 instructions per second

18.
Processors have a speed measured in
a)
Hertz
b)
Bits
c)
Bytes
d)
Seconds
19.
Data and Instructions in use are stored in the
a)
Processor
b)
Embedded System
c)
Hard Disk Drive
d)
Main Memory
20.
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
21.
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
22.
The part of a processor in which instructions are executed is known as?
a)
Core
b)
Centre
c)
Execution
d)
Instruction Centre
23.
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
24.
If the processing speed goes up from 1GHZ to 4GHZ and the number of cores goes from 1 to 8 – what is the exact effect on the performance of the computer?
a)
Eight Times Faster
b)
Sixteen Times Faster
c)
Thirty Two Times Faster
d)
Sixty Four Times Faster
25.
What component holds the address of the next instruction
a)
Memory Address Register
b)
Memory Data Register
c)
Program Counter
d)
Accumulator
26.
Results of calculations are held in this register
a)
Memory Address Register
b)
Memory Data Register
c)
Program Counter
d)
Accumulator
27.
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
28.
This would perform an operation such as 5+8
a)
Arithmetic Logic Unit
b)
Accumulator
c)
Cache
d)
Control Unit
29.
This DOESN'T happen during the Fetch part of the cycle
a)
Address Bus is used
b)
Program Counter increments by one
c)
Arithmetic operations are performed
d)
Main Memory is addressed
30.
This doesn’t happen during the Decode / Execute part of the cycle
a)
Current Instruction is held in the CIR
b)
Results are held in the Accumulator
c)
Status Register updated
d)
Instructions are transferred from Main Memory
31.
Carries address of the next instruction that will be fetched
a)
Address Bus
b)
Data Bus
c)
Control Bus
d)
System Bus

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