Answer:
The Input Unit means the data we write on a computer which data the computer receives and the Output Unit means that the data which is sent by the computer. The processing unit is the device that handles all the instructions which are given by the human for the input unit or the output unit.
The Input Unit: Computer Input unit means the device of the input and a part of the computer hardware which is used for the transport of the data processing system involves the information devices of the computer with the control and data signals of the computer.
Example – Mouse, Camera, and Keyboard
The Output Unit: Computer Output is the device which deals with transmitting the data of the computer among the device and the clients. The computer is designed for humans in the form of audio and video format.
Example – Monitors, printers, microphones, and headphones.
The Processing Unit: The Processing Unit is the hardware device of the computer that deals with the instruction of the computer program and is known as the CPU (central processing unit). It deals with the basic logical information of the computer and arithmetical and the Input or Output device functions.