Computer Hardware

2nd Year ICT

Hard Drive/SSD

The hard drive is the part of the computer that stores the information. They are relatively cheap, quite big and have moving parts. You also get SSDs (Solid State Drives) that are smaller but more expensive and have no moving parts. They are used in iPods, iPhones and iPads because they are smaller and quicker.

Optical Drive

Optical Drive

An optical drive is used to write and read optical discs like DVDs, Blu-Rays and CDs. You find optical drives in xboxs, PlayStations, laptops, computers and DVD players.

Monitor

Monitor

The monitor is the screen on the computer. This screen allows you to see what you're typing, accessing and reading.

CPU

CPU

CPU stands for Central Processing Unit. It's the 'brain' of the computer, although it is artificial. The CPU sends messages and deciphers codes for other parts of the computer.

RAM

RAM

RAM stands for Random Access Memory. It stores things temporarily so you can access it later when you need it. RAM is the most common kind of memory (it's also used in printers)

MOTHERBOARD

Motherboard

The motherboard is the main part of the computer. Everything is linked to this and this is where all the components are attatched.

inputs/outputs

inputs/outputs

You attach an input device to your computer and that allows you to input information. Examples of these are a mouse and a keyboard. You send or output information using an output device (this could be a printer, scanner of photocopier).

touch screens

touch screens

A touch screen is both an input and output device. It sensitive to touch and pressure.