What is a Computer

The first use of the word “computer” was recorded in 1613, referring to a person who carried out calculations, or computations, and the word continued with the same meaning until the middle of the 20th century.

A computer is a general purpose device that can be programmed to carry out a finite set of arithmetic or logical operations. Since a sequence of operations can be readily changed, the computer can solve more than one kind of problem.

Also we can say …..
An electronic device that stores, retrieves, and processes data, and can be programmed with instructions. A computer is composed of hardware and software, and can exist in a variety of sizes and configurations.

Types of Computers
Mini and Mainframe Computers
Very powerful, used by large organizations such an banks to control the entire business operation. Very expensive!

Personal Computers
Cheap and easy to use. Often used as stand-alone computers or in a network. May be connected to large mainframe computers within big companies.

Exercises Meeting-1

1. Do you know the origin of “Computer” and what it means?
2. What is the meaning of “Computer” ? (depend on yourself definition)
3. Mention it the type of computer as you know ?
4. Make a resume with your own words about the history of computer ( min 100 words )

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