A computer is a widely used device. Almost every family has a computer. It can perform various functions and make our lives easier. It has four main parts: Monitor, Keyboard, CPU, and Mouse. A Computer can be used to send and receive messages and emails. It also has features like the paint tool, notepad, and calculator. It allows us to store and modify data. A computer is a very reliable device and is used everywhere, starting from schools to offices to medical fields. The only disadvantage of a computer is that we depend too much on it and use it to complete even the easiest of tasks. Even if that is the case, there is nothing that a computer cannot do for us. Scientists are working every day to improve the quality of computers. Having basic knowledge about computers is important in this generation so that work can be done easily.