What is a Computer Short Definition
A computer is an electronic device that manipulates data according to a set of instructions. It can store, retrieve, and process information.
Types of Computer
There are four types of computers: laptops, desktops, tablet PCs, and smartphones. Each type has its own set of features and benefits that make it the best choice for different needs. Laptops are the most portable type of computer, making them ideal for students and business professionals who need to take their work with them on the go.
They’re also powerful enough to handle most tasks, from watching movies to editing photos to playing games. Desktops are larger than laptops and have more storage capacity and processing power, making them a good choice for gamers and creative professionals who need those extra resources. They’re not as portable as laptops, but they don’t require an external monitor or keyboard like some gaming laptops do.
Tablet PCs are a newer type of computer that combines the portability of a laptop with the touchscreen functionality of a smartphone. They’re perfect for people who want to be able to work on the go but don’t want to carry around a heavy laptop. Some tablet PCs even come with keyboards that attach magnetically, making them even more versatile.
Smartphones are the smallest and most portable type of computer, making them ideal for people who want to stay connected while on the go.
What is a Computer System
A computer system is a set of integrated devices that input, output, process, and store data. The heart of the system is the central processing unit (CPU), which performs arithmetic, logic, and control operations. Memory units store data and instructions for use by the CPU.
Input devices allow humans to enter data into the system; output devices present processed data to humans in an intelligible form. Secondary storage devices hold information for future or prolonged use.
Uses of Computer
Computers have become an integral part of our lives. They help us in various fields such as education, business, science, etc. Here are some important uses of computers:
1. Computers can be used for educational purposes. They can be used to store and retrieve data related to studies. They can also be used for online communication between teachers and students.
2. Computers are widely used in businesses. They help in maintaining records, preparing reports and presentations, etc. Businesses use computers for communication and marketing purposes as well.
3 .Computers play an important role in the field of science too. They are used for research work, data analysis and simulations.
Scientists use computers to study complex problems and find solutions to them. 4 .Computers are also used extensively in the entertainment industry .
They are used for creating video games , movies and music .