A computer is a device. It can be used for everyday purposes like designing, multimedia, printing etc. Computer systems are mainly combined with three systems which we call Hardware, Software, and the User. You just need to use proper software to operate a computer. That is the main difference between computers and other machines. Computers can be made with or without electricity, although today it’s an electronic device.
Hardware – All the system which we can see around and inside the computer.
E.G – CPU, Motherboard, RAM, ROM, Keyboard, Mouse, Monitor, Printer etc.
Software-The program which we can’t see, but is a guide to the hardware, like CPU and command how it can work. Simply, without software, a computer is nothing.
E. G – Operating system(Windows, Linux etc.), Word, PowerPoint, Excel, Photoshop, PC games, Media player etc.
User – means you who control it as input data, check output result etc.