O-Level Computing (7155) Computer Systems and Architecture quiz: hardware, software, peripherals, memory, CPU and fetch-execute quiz

A web browser

The operating system

A spreadsheet program

A photo editor

The programs that run on a computer

The data stored on a disk

The physical parts of a computer system

The instructions in the operating system

Fetch-decode-execute

Read-write-delete

Compile-link-run

Input-process-output

Printer

Scanner

Keyboard

Microphone

Input only

Both input and output

Output only

Storage only

It is the largest storage in the computer

It can never be changed

Its contents are lost when power is removed

It holds the start-up instructions permanently

RAM

Secondary storage

Cache

ROM

It is non-volatile and holds files permanently

It is volatile and very fast

It is cleared every time the computer is switched on

It is the working memory the CPU uses directly

RAM and ROM

Control unit and arithmetic logic unit

Input unit and output unit

Hard disk and cache

The ALU performs a calculation

The result is sent to an output device

The next instruction is copied from main memory into the CPU

The instruction is removed from memory

Execute, decode, fetch

Decode, fetch, execute

Fetch, execute, decode

Fetch, decode, execute

Performs calculations and logical comparisons

Stores files permanently

Directs and decodes instructions

Connects input and output devices

The computer has more storage

The CPU completes more cycles per second, so it can run faster

The computer uses less electricity

The CPU has more cores

Each core stores more data permanently

More cores always make every single program faster

Multiple cores can work on several tasks or parts of a task at the same time

Cores replace the need for RAM