Four Main Types of Hardware are. Input Device Use to enter data into the PC. Model: Keyboard, mouse, joystick, scanner, voice acknowledgement, contact screen, receiver, light pen, and stylus. Other than the screen, console and mouse, which are adequately Output Device, you will require four fundamental equipment segments on account of your PC: the motherboard, focal preparing unit, hard plate drive and power supply. Equipment alludes to the physical components of a PC. Likewise alluded to as the apparatus or the hardware of the PC. Instances of equipment in a PC are the console, the screen, the mouse and the handling unit, However, the majority of a PC's equipment can't be seen; It's inside the PC case.