class 3 computer ch 2
Answers
Explanation:
1 The computer is an electronic device that connects us to people across the world.
2 The word ‘computer’ originates from a Latin word ‘ Computare’ meaning calculate.
3 It was invented for solving programs and for calculations. With the development of technology, computers have evolved to solve other programs.
4 A computer consists of a monitor, mouse, CPU, and a keyboard.
5A computer takes in information as input, processes the data, and gives new information as the output.
6 A computer is used for various purposes. It is used for making Software, documents, invoices, lists, etc.
7 A computer is also used for playing games, listening to music, accessing the internet, watching movies, and solving programs and calculations.
8 There are three basic types of computers- Hybrid computers, Analog computers, and Digital computers.
9 Computers are used in various fields like medical sectors, educational areas, research, etc.
10 Computers can perform a powerful function and hence have reduced our efforts and made our life easy.