How a Computer Works?

Computing History

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The term motherboard refers to the main circuit board inside a computer.

A motherboard allows all the parts of your computer to receive power and communicate with one another.

Hard Disk

A computer's hard disk or hard drive stores information such as the operating system, programs, and files.

So basically, hard disk only stores a lot of information.

Solid State Drive

A solid state disk is a high-performance plug-and-play storage device that contains no moving parts.

SSDs do not have any moving parts which is why they are called SOLID state drive.

Optical Drive

An optical drive is any storage device that uses light to read and write information.

An optical drive in a computer system allows you to use CDs, DVDs and Blu-ray discs to listen to music or watch a movie.


A device that displays signals on a computer screen.

A monitor will display images generated from the video output of your computer, without producing a recording.


The central processing unit is described as the center (that’s why it’s called the CENTRAL processing unit) of any computer and it performs all the processing in the computer.


Random Access Memory is a computer storage location that allows information to be stored.

RAM is where a computer stores programs, applications or data that is being used.


Input is data that goes into the computer. While output is the opposite, it’s the data that goes out.


Touchscreen is the screen were you can touch on things on your device which is happening with the devices that are coming out recently. Like some apple devices.

Operating Systems

An operating system supports a computer’s basic function.

Like, recognizing input from the keyboard and sending output to the display screen.

Tim Berners-Lee

He was born June 8th 1955, in London, England. He’s an English man who’s a computer scientist. Tim Berners-Lee was best known as the inventor of World Wide Web. It was invented in 1989. He studied in The Queen's College, Oxford.

Alan Turing

He was born in June 23rd, 1912. And he died at the age of 41 (7 June, 1954). He’s a British computer scientist. He studied as an undergraduate from 1931 to 1934 in England and the name of the college is Princeton University.

The Four Generations of Computer

  • The First Generation: It all started between (1945 - 1955). They were made of vacuum tubes and they were programmed using machine language.
  • The Second Generation: It was help between 1959 – 1964. They had transistors which helped the computer to be faster and more reliable for less power.
  • The Third Generation: It was held in the sixties. In the third generation the started having operating system in the computers. It was getting better and better.
  • The Fourth Generation: Lastly, the last improvement was in the 1971 were the microprocessor was developed. It changed the computer’s speed which is really good.