What is a computer?

A computer is an electronical device which was formed to calculate calculations and to perform tasks. Computers now have web browsers and you can make documents and spreadsheets etc.  

 

Charles Babbage

Charles Babbage was a British man from London. He is known for his computer science knowledge and his mathematics knowledge. He is known as the father of the computer. He made the first mechanical computer. He was a polymath. He was the man who invented analytical engine. It was the first proper calculating machine created by Charles Babbage himself.

 

World War 2 colossus

This computer was invented during World War 2 for code breaking. It was the first electronic digital computer and it was especially used in the world war. It was invented/designed by Tommy Flowers.  

 

Post war- LEO- lions electrons office

Leo was the first business computer which was actually built by a coffee shop company. It took ages to build one and everybody concentrated on the same machine so one was built at a time so not many were made in LEO’s time. They were built for the coffee shop’s advertising and different office techniques. Later LEO II and LEO III were built and LEO III went worldwide.

 

1980s- PC’s

The IBM computers were made in the 1980s and it was a much smaller and better quality model. It had memory and a coloured monitor. This computer started to appear in homes and businesses. They looked out of the company and went into contact with Microsoft and Intel and they were both applied into the computers.   

  

Modern computers

Computers these days are very updated and are much better than they were 20 years ago. We have also got more items like iPhones and iPads from apple which are like little computers with apps in your hands. They have touch screen computers now and computers are still improving by the day.

  

         Computer Model 1





         Computer Model 2




          Computer worksheets

Inputs
Outputs
Computer parts