iGCSE Computer Science: Hardware

1.

Multiple Select

20 sec

1 pt

Which of these are internal hardware components in a computer (select all that apply)

mouse

RAM

CPU

operating system

BIOS

2.

Multiple Select

20 sec

1 pt

Select all the components of the CPU

ALU

Control Unit

Registers

RAM

3.

Multiple Select

20 sec

1 pt

Choose all the types of system bus?

Address

Data

Control

Register

4.

Multiple Select

30 sec

1 pt

Choose all the types of cache memory?

L1i

L1d

L2

L3

5.

Multiple Select

20 sec

1 pt

Choose all the registers found in a typical processor?

Current Instruction

Accumulator

Memory Data

Memory Address

6.

Multiple Choice

45 sec

1 pt

What is meant by a von Neumann computer architecture?

Where the program instructions are stored in a seperate memory storage from the data

Where the program instructions are stored in the same memory storage as the data

Where the program instructions are stored in ROM and the data is stored in RAM

Where the program instructions are divided across several CPUs

7.

Multiple Choice

20 sec

1 pt

What is the main storage area for program instructions and data in a Von Neumann computer architecture?

RAM

CPU

ROM

Cache

8.

Multiple Choice

20 sec

1 pt

Which internal component carries out the processing of program instructions?

CPU

GPU

RAM

BIOS

9.

Multiple Choice

20 sec

1 pt

What controls the timing of the instruction cycle in a computer

The amount of RAM available

The frequency of the internal clock

The width of the address bus

The size of addressable memory

10.

Multiple Select

20 sec

1 pt

Choose all statements that are TRUE about primary memory addresses

Each one has a unique address

They all store the same amount of data

The number of addresses is determined by the width of the address bus

Addresses are stored internally as hexadecimal numbers

11.

Multiple Select

20 sec

1 pt

What are the allowable operations that the processor uses to interact with the RAM?

reading

writing

copying

deleting

12.

Multiple Choice

20 sec

1 pt

Which word describes the property of RAM memory where memory cells must be constantly refreshed to keep their contents

volatile

non-volatile

random

static

13.

Multiple Choice

20 sec

1 pt

A type of primary memory that does not need to be refreshed to retain its contents AND whose contents cannot be changed

RAM

BIOS

Flash

ROM

14.

Multiple Choice

20 sec

1 pt

What is the non-volatile firmware used to perform hardware initialization during the booting-up process called?

BIOS

Cache

ROM

Hard disk

15.

Multiple Choice

20 sec

1 pt

What type of memory is used to compensate for the difference in speed between accessing processor registers and reading memory locations in RAM?

Cache

Flash

UEFI

BIOS

16.

Multiple Choice

20 sec

1 pt

What is the part of the CPU that performs calculations and makes decisions called?

ALU

Control Unit

Registers

Clock

17.

Multiple Choice

20 sec

1 pt

Name for the small, very fast access storage locations inside the CPU that can store one data item, instruction or address

Cache

Registers

ALU

RAM

18.

Multiple Choice

20 sec

1 pt

The part of the CPU that directs the operations of the processor

Control unit

ALU

Registers

Clock

19.

Multiple Choice

20 sec

1 pt

A register inside the CPU in which intermediate arithmetic and logic results are stored

Accumulator

Program counter

Memory Data Register

Current Instruction Register

20.

Multiple Choice

20 sec

1 pt

A register inside the CPU that stores the memory address of the next instruction to be fetched from memory

Accumulator

Program counter

Current Instruction Register

Memory Data Register

21.

Multiple Choice

20 sec

1 pt

Which part of the CPU is this: an electronic 'crystal' device that 'ticks' regularly and is used to synchronise the actions of the CPU.

ALU

Control Unit

Register

System clock

22.

Multiple Choice

20 sec

1 pt

What is the correct sequence of operations between CPU and RAM?

Fetch-decode-execute

Fetch-execute-decode

Decode-fetch-execute

Fetch-execute-fetch

23.

Multiple Choice

20 sec

1 pt

The larger the width of the address bus ....

... the larger the size of each memory location

... the faster the data can be transferred

... the more addressable memory locations there are

... the more bits there are in each 'word'

24.

Multiple Select

20 sec

1 pt

Choose all the secondary storage mediums ...

HDD

SSD

DVD

Cloud

RAM

25.

Multiple Choice

20 sec

1 pt

What type of storage does this device use?

Magnetic

Optical

Electrical

Cloud

26.

Multiple Choice

20 sec

1 pt

What type of storage does this device use?

Magnetic

Optical

Electrical

Cloud

27.

Multiple Choice

20 sec

1 pt

Which secondary storage device make use of a laser light?

28.

Multiple Select

20 sec

1 pt

Choose all the Cloud storage options ...

29.

Multiple Choice

20 sec

1 pt

Any process that hides the true physical nature of a computing resource, usually to simplify the way it is accessed by a user.

Virtualisation

Abstraction

Decomposition

Representation

30.

Multiple Select

20 sec

1 pt

What types of storage would usually be found in an embedded system? (select all that apply ...)

ROM

RAM

HDD

SSD

31.

Multiple Select

20 sec

1 pt

Which types of memory storage are volatile? (choose all that apply ...)

RAM

ROM

Flash

Cache

32.

Multiple Choice

20 sec

1 pt

Which is the main reason for having cache memory?

To be able to run more powerful programs

To compensate for the difference in speed of the CPU and RAM access times.

To increase the size of main memory

To allow you to run a program with less RAM

33.

Multiple Select

20 sec

1 pt

Choose all the factors that could potentially affect the performance of the CPU ...

Frequency of internal clock

Number of processor cores

Size of cache memory

Type of cache (L1, L2, L3)

Amount of RAM

34.

Multiple Select

20 sec

1 pt

Choose 2 actions that could help improve the CPU performance ...

Increase amount of RAM

Replace dual-core with quad-core processor

Increase size of cache

Replace HDD with SSD

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