C++ Program

Second Part Here :- II Part Q.1. Give short notes on various Input and Output Devices. Ans.: The devices which are used to input the data and the programs in the computer are known as “Input Devices‟. These devices convert what we input, into a form that is understandable by a computer. It provides man to machine communication. Some of the I/O devices are explained below: (1) Keyboard : The data and instructions are input by typing on the keyboard. The message typed on the keyboard reaches the memory unit of a computer. It‟s connected to a computer via a cable. Apart from alphabet and numeral keys, it has other function keys for performing different functions. (2) Mouse : It‟s a pointing device. The mouse is rolled over the mouse pad, which in turn controls the movement of the cursor in the screen. We can click, double click or drag the mouse. Most of the mouse‟s have a ball beneath them, which rotates when the mouse in moved. The ball has 2 wheels of the sides, which in turn ...