Components of a computer OCR A level

A device which is used to store data and files on.

• Input Device

• Output Device

• Storage Device

Any peripheral device that can accept data, presented in the appropriate machine-readable form, decode it and transmit it as electrical pulses to the CPU.

• Input Device

• Output Device

• Storage Device

A device that is an auxiliary device such as a computer mouse or keyboard that connects to and works with the computer in some way.

• Peripheral

• Add-on

• Hard Drive

• Network Card

Responsible for starting the computer after it is powered on.

Used to keep track of the time when a computer is switched off.

Consists of a control unit, ALU and cache memory. It is responsible for processing the instructions given to a computer.

Used for processing of graphics, particularly used by gamers and graphic designers.

• CPU

• GPU

• BIOS

• CMOS

Type of secondary storage that users magnets to read and store data. Examples include floppy disks and hard disks.

• Magnetic Hard Drive

• Optical Drive

• Solid State Drive

• Cloud Storage

Data storage technology with no moving mechanical parts that uses large-capacity, non-volatile memory, commonly called flash memory or solid-state drives.

• Magnetic Hard Drive

• Optical Drive

• Solid State Drive

• Cloud Storage

Storage devices which use lasers to store and read data. Examples include CDs and DVDs.

• Magnetic Hard Drive

• Optical Drive

• Solid State Drive

• Cloud Storage