ABOUT COMPUTER : A computer is an electronic device that processes information in the data inputted by the user and provides the information as a result, that is, the computer is an electronic machine that follows the instructions given by the user. You can use a computer to type documents, send emails, play games, and browse the web. You can use it to create spreadsheets, presentations, and even videos.
Hardware vs. Software :
Before talking about different types of computers, we come to know about two things that are common to all computers: hardware and software.
Hardware : Hardware is any part of your computer that includes a physical structure, like monitor, keyboard , mouse etc . It also includes all the internal parts of the computer, which you can see in the image below.
Software : Software is any set of instructions that tell the hardware what to do and how to do it. Examples of software include web browsers, games, and word processors, etc. Everything you do on your computer is done by both hardware and software. For example, right now you are viewing this text in a web browser (software), it is a software and using your mouse (hardware) to click on a page, then the mouse is a hardware.
Types of Computers
When most people hear the term computer, they think of a personal computer such as a desktop or laptop. However, computers come in many sizes, and they perform many different tasks in our daily lives. When you withdraw cash from an ATM, scan groceries at the store, or use a calculator, it means that you are using a type of computer.
Desktop computers: So
Many people use desktop computers at their work place, home ,school etc . Desktop computers are designed to be placed on a desk and they are usually made up of a few individual parts, including a computer case, monitor, keyboard, mouse, CPU and more .
The second type of computer you are familiar with is a laptop computer, commonly called a laptop. Laptop have battery powered computer that is more portable than desktops,it allowing you to use that almost anywhere.