PERFORMING COMPUTER OPERATIONS

A primary input device much like a typewriter, used for entering text and command function shortcuts into a computer.

The part of a computer that controls the arithmetic and logical operations and decoding and executing instructions

Device used with graphical environments to point and select objects on the system's monitor. They come in a variety of shapes and sizes.

operating system The program that controls a PC and makes it possible for users to run their own applications. The operating system provides the built-in routines that allow the computer to recognize commands, manage files, connect devices, and perform I/O (input/output) operations.

A new external expansion bus that is popular for use with low-speed mass storage devices such as Zip drives, modems, and printers.

takes alternating current (AC) power from a local source (a wall outlet) and converts it to direct current (DC) for on-board electronics use

A computer is defined as an electronic device that accepts input, processes data, stores data, and produces output. includes a computer, peripheral devices and software.

is the computer’s machinery the parts you can see and touch, like the monitor all the electronic devices and circuits inside it.

give at least one stage of computing on computer

is the second stage of computing. This is the actual manipulation of data by the computer.

Converts printed or photographic information to digital information that can be used by the computer. Works similar to the scanning process of a photocopy machine

The large circuit board found inside the computer. Without it, a computer is just a metal box. The motherboard contains all the remaining items in this table; for all practical purposes, it is the computer.

Generates a "hard copy" of information. Includes dot matrix, ink jet, and laser varieties

Reproduce sound. Optional high-quality speakers can be added to provide improved output from games and multimedia software.

The function keys are used to perform specific tasks. They are labeled as F1, F2, F3, and so on, up to F12. The functionality of these keys differs from program to program.