The joystick is a peripheral or secondary input device of the computer system that regulates by the handle stick which moves one side and transfers the 2D or 3D angle in the computer system. The mouse in an input device that works as the pointing device which is acting on the two dimensional motion on the Interface of the computer system. The CD- ROM is a Compact disk read only memory that has permanently stored data in it and made retrievable to the system. The RAM or Random access memory is non permanent memory of the system unlike ROM or Read only memory, RAM is important to store data instantly while processing of data. The CPU or Central processing unit is the main executable processor of the computer system and a logical machine which execute the computer programs. The mother board also possesses the connectors for the other system integrated devices like Monitor, Printer, Keyboard, Speaker, and also for the electric supply. The various components like CPU, Memory, Graphics card, Sound card, Hard disk controller, Floppy disk, CD drive are being connected by the different connectors present in the motherboard. The motherboard have other names like main board, mobo, logic board, planer board. Some devices like the modems and network cards functions as the both input and output devices.Ī structured and printed circuit in the CPU which enables the user to transfer the data and the communication to the system. The keyboards and mouse are the Input device whereas the monitor and the printer are the output device in the computer.

The I/O devices are used to perform an processing.

The processing activity is represented by the I/O operation. The inputs are the data which is entered in the system and the output is the information retrieved from the system. The computer is known as the information processing system. The input and output devices is used to interact with the computer. Introduction to Seminar Topic on Input Output Devices:

Project on input and output devices