Peripheral
Hardware you add to your computer other than processors and memory is called a peripheral. Computers generally include a parallel port, one or two serial ports, two PS/2 ports, two universal serial bus(USB) ports, controllers for up to two floppy disk drives and four IDE devices(typically hard drives, CD-ROM drives, CD-R drives, or DVD drives), a modem and sound and video adapters on the motherboard. Windows can’t usually tell whether these items are built-in or on separate cards. It treats them all as separate peripherals.
Universal Serial Bus (USB)
USB is a new connector, intended to be a faster and simpler replacement for serial and parallel ports, as well as for low to moderate speed devices such as modems, printers, sound cards and back-up tapes.
Drivers
Windows comes with standard drivers for a wide range of monitors, printers, modems, and other devices. When you buy hardware, you usually receive a floppy disk or CD- ROM that contains the driver for the device which you need to install during the configuring process to get the device work with windows.
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