Computer componentns yr12 Unit 1 OCR IT Level 3

To convert electricity from AC to DC

To manage the functions of a computer system by processing data and instructions

To store data long-term

To connect expansion cards and ports

Cache Memory

Read-Only Memory (ROM)

Random Access Memory (RAM)

Power Supply Unit (PSU)

It is volatile and loses data when the power is turned off

It is non-volatile and cannot be changed

It is used for temporary storage of frequently accessed data

It is the main circuit board of a computer

Solid State Drive (SSD)

Magnetic hard disk drive (HDD)

Optical disc

Cloud storage

More durable

More portable

Larger capacity and cheaper per gigabyte

Faster access speed

DVD

Magnetic tape

SD card

Blu-Ray disc

High capacity

High cost

Fragility and susceptibility to scratches

Portability

It transfers data between servers across a network.

It processes graphical data (e.g., videos or animations) and converts it into a displayable output on a monitor.

It allows computers to connect to networks and transfer data to other computers.

It is required for the computer to manage and use any attached storage devices.

It transfers data between servers across a network.

It processes graphical data and converts it into a displayable output on a monitor.

It converts analogue sound waves into digital data (binary) and vice versa.

It manages and uses any attached storage devices.

To process graphical data and convert it into a displayable output on a monitor.

To transfer data between servers across a network.

To connect external devices like printers and scanners to a computer system.

To convert digital data into analogue sound waves.