Hardware : Physical parts of a computer system are called hardware. It can be seen or touched. Hardware is again divided into two parts.i) CPU (Central Processing Unit): It is called brain of computer.ii) Peripherals : Peripherals devices are those devices that are connected to the CPU but are external in relation.The peripherals devices are Input device, Output device and Storage device.Example:1) Input device: Keyboard, Mouse, Scanner, Joystick, Microphone, BCR (Bar Code Reader), etc.2) Output device: Monitor or VDU (Visual Display Unit), Printer, Plotters, Speaker, etc.3) Storage device: Hard disk, Floppy disk, Compact disk (CD)
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