Edexcel GCSE Computer Science Topic 3 Computers overview quiz quiz

Only the program instructions, never the data

Only the data, with instructions kept elsewhere

The operating system on its own

Both program instructions and data

The arithmetic logic unit (ALU)

The control unit that decodes instructions

A general-purpose register

The system clock

The data bus

The address bus

The control bus

The system bus

Decode, fetch, execute

Fetch, execute, decode

Fetch, decode, execute

Execute, fetch, decode

It is faster to access than the main RAM

It can only ever be read from, never written to

It is built directly into the processor chip

It keeps its data when the power is off

As magnetised areas on spinning platters

As pits and lands on a disc read by a laser beam

As electrical charge trapped in flash memory cells

As holes physically punched into a card

Magnetic

Solid state

Optical

Magnetic tape

A general-purpose computer that runs many programs the user installs

A particular type of operating system software

A computer built into a device for one dedicated function

A spare backup copy of the main computer

File management

Peripheral management

User management

Process management

Reorganises a magnetic disk so each file's parts are stored together

Deletes any unwanted and temporary files in order to free up some disk space

Makes a complete backup copy of everything on the disk

Scans the whole disk for viruses and other malware

It is made of binary instructions that the CPU can run directly without translation

It uses English-like keywords and is portable across computers

It is specific to one particular type of processor only

It cannot be debugged once it has been written

One statement at a time as it runs

It does not translate, it runs source directly forever

The whole program at once into an executable file

Only the first line