How a computer works

Made by: Sandy Chebeddine 8B

Hard drive (HDD)/SSD:

A hard drive is a tool used for saving things; it’s exactly like a USB. You can take it with you and open and save. A hard drive is a CD with a black thing surrounding it. Hard drives were created in the 1950’s and used for many things.

Optical Drive:

An optical drive is used for scanning things. It uses a laser to identify many things. They scan writings and other things.


A monitor is the screen of a laptop or a computer. It is used to see things and watch things. You can watch and entertain yourself with it. You can even watch videos and many other things.


The CPU is an instruction guide on the basics of the computer/laptop. It is even the brain of the computer. It does everything you want it to do.


A random-access memory device allows data items to be read and written in roughly the same amount of time regardless of the order in which data items are accessed.


A motherboard is the electrical part of the laptop; a motherboard is even the main part of the computer and can be connected to other devices.


Input- Input is whatever is inside the laptop/computer. It is everything from files to games. So basically everything you see right now is input.

Output- Output is everything outside of the computer/laptop. From printers to scanners; these are all output.


Touchscreen lets you be able to touch anything in the screen. Ipads and most phones can do this. Some laptops even have touchscreens.

Operating Systems/ Other software:

Operating system is software that allows programs to run. All devices have an operating software to be able to run things.

Tim Berners Lee:

Tim Berners-Lee is the creator of the World Wide Web; also known as “www”. He is a computer scientist, and graduated from “The Queen’s College, Oxford”.

Alan Turing:

Alan Turing was a British mathematician, logician, cryptanalyst, philosopher, computer scientist, mathematical biologist, and marathon and ultra-distance runner. He was really interested in learning about the computer.

The four generations of computers:

The first generation of computers was created in 1945 – 1955.

The second generation was created in 1955-1965.

The third generation was created in 1965-1980.

And the fourth generation was created in 1980 and ongoing.