Computer Components

by Matthew Norman

Computer Components

This website gives you details about all of the parts of the computer on the outside.

Different Computer Components

The Hard Disk Drive (HDD)

The Hard Disk Drive is part of the computer which holds all of the information in the PC. It can be changed to make the computer work better. This is needed to hold the information in the computer. It is connected to the motherboard in the computer.

The Heat Sink

A heat sink is used to cool central processing units or graphics processors. It makes sure that the computer doesn't over heat, which could damage the computer or the components.

The Random Accessed Memory (RAM)

Ram is a type of computer memory that can be accessed randomly. This is connected to the computer by clipping into the Motherboard.

The Power Supply

The power supply is what supplies the computer with power. It sends power to the CPU, RAM, the motherboard and the heatsink.


The motherboard is a PCB which all other cards in the computer are connected to. The RAM, the heat sink, the CPU and various other pieces of equipment are connected to it to help run the computer. It is powered by the power supply. This is needed to connect all of the different components in the computer.

The Central Processing Unit (CPU)

The CPU is often described as the brain of the computer. It processes all of the information that the computer needs and is responsible for following and carrying out a group of set instructions, which is called a program.

Video Card

The video card is a PCB (Printed Circuit Board) which controls the output to a screen or monitor. It can be changed to upgrade the quality of the video output. The Video Card is connected to the motherboard. Some gamers will change their video card every 3-6 months to keep the quality high. This is needed because without it you wouldn't be able to get a visual output from the computer.

People involved in Computers

Alan Turing

"The Father of Computers" (1912-1954)

Alan turing played a vital role in deciphering the messages encrypted by the German Enigma machine during the second World War. He took the lead in a team that designed a machine known as a 'bombe' that successfully decoded German messages. This was the first scientific computer and you can still see it at Bletchley Park.
Alan Turing - Celebrating the life of a genius

The Five Generations of Computers

Five Generations of Computers

There are 5 generations of computers. This website explains each one of them.

Tim Bernes-Lee

Tim Berners-Lee was the inventor of the World Wide Web. something that we use everyday and something that is helpful to hundreds of thousands of people around the world. He started to create a program called "Enquire" that linked different topics together on a single computer. He later created 'Hyper-test' which linked different things together on a series of different computers. The internet was born and over the next 10 years, the internet became more and more popular and now, most families have at least one device in their home, that is connected to the internet.
Dom Joly - Sir Tim Berners-Lee

Inputs and Outputs

There are lots of different things that people connect to their computers including printers, cameras, mice and keyboards. Anything that connects to a computer and sends information to the computer (eg. Scanner), is a input and anything that receives information from the computer is an output (eg. Printer)

Operating Systems

An operating system is the most important program in a computer. It is responsible for all of the security of the computer as well as recognising inputs and outputs.

There are lots of different operating systems, such as:

- Windows XP

- Windows 7

- Windows 8/8.1

- Apple OS

- Linux