A computer component is a part of a computer system that helps it to function. A CHIP is a small piece of silicon that contains integrated circuits and is used to process data. A KEYBOARD is an input device used to type characters into a computer. A MODULE is a self-contained unit that can be plugged into a larger system. A modem is a device that allows computers to communicate with each other over a telephone line. A DRIVE is a device that reads and writes data to a storage medium. An addin is a software component that adds functionality to an existing program. A diskdrive is a device that reads and writes data to a disk. A harddrive is a device that stores data on a hard disk.