Hello,

Greetings all siz members. I hope all member are well by the grace of Almighty God. I am @tanjim01 from Bangladesh. Today i share my post which topic is " How computer change the world".

![pexels-pixabay-209151.jpg](https://cdn.steemitimages.com/DQmWfz2j1bQbSiRSpTMrpnZ8KhXWksjL1HGtMgnyrJbu3Tz/pexels-pixabay-209151.jpg) [Source](https://www.pexels.com/photo/person-using-macbook-209151/)

Computer is an electronic device which is used to storing and processing data normally in binary form according to the program. It has ability to process, collect and store data also it can produce output.

## History of computer:

The history of computer began the early age of 19th century. There are few people who contribute to invent the computer and develop that device. Some name i share to yours, Jesoph Marie, Charles Babbage, Ada lovelance. The inventor of computer is known Charles Babbage.

![pexels-christina-morillo-1181675.jpg](https://cdn.steemitimages.com/DQmW2tbuMLy41yr29hukk5Ek5jhPhfPYmx8DTigLZRkK57j/pexels-christina-morillo-1181675.jpg) [Source](https://www.pexels.com/photo/close-up-photo-of-person-typing-on-laptop-1181675/)

## Types of computer: On the basis of handling capabilities there are three types of computer.

Analogue Computer
Digital Computer
Hybrid Computer

## 5 parts of a computer:

Motherboard
CPU (Central procession unit)
GPU (Graphics Procession unit)
Ram ( Random access memory)
Storage

Medical field

In medical field computer are used to maintain X-ray, ECG and others. Sometimes computer used to robotics surgery and virtual reaused . Nowadays it is used to operation. It can monitor mother womb.

Entertainment

In education it is widely used. In computer we can watch movies, playing games. Sometimes Virtual reality games is played by computer.

Industry

In industrial sector computer is used to maintain all calculation of account. Online marketing also done by computer.sometimes a company need to arrange meeting with video conference where also used computer.

Education

In eduction sector computer is used so much. Through computer online class class can be arranged. Sometimes examination is held with using computer.

Government

All citizen data is store by computer and process it. When any citizen data is needed any time just search it to the computer then i can watch through computer.

Computer uses can causes the arm, back pain. Children can experience physical problem if they play game too much. Look in the computer screen can harm the eyes of children. Sometimes children much addicted with computer that waste their time.

In day by day computer is develop so much. In first invention time computer used only for solving and calculated number. But a time after it is widely used in almost all work. In future it can be posdible to DNA based computer that is used for more complex work.