Translations:Adventist Youth Honors Answer Book/Vocational/Computer (General Conference)/10/en
Alphanumeric
The set of all letters and numbers. An alphanumeric value is any string made up of only letters and numbers. For instance, "a12bgj", "1234", and "ABCD" are all alphanumeric, whereas "aB$4" is not (it contains the '$' symbol which is neither a letter nor a number).
CPU
Adventist Youth Honors Answer Book/Computers/CPU
Circuit Board
A circuit board is a stiff sheet of material upon which various components of a circuit are soldered. It supplies the connections between the components as well as a platform on which they are mounted.
Cursor
The cursor is a visual indicator on a computer display. It shows where on the display the next keyboard entry will be made. In a graphical system, the cursor may be moved around the screen with a mouse. In a text system, the cursor may be moved around using the arrow keys on the keyboard.
Port
A port is an external connection on a computer. It provides a connection to an external device such as a mouse, keyboard, printer, external modem, camera, or other device.
Program
A program is a series of computer instructions that when executed performs a predetermined task.
DOS or OS
OS stands for "Operating System" and DOS stands for "Disk Operating System." An operating system is a program that coordinates the rest of the computer. It allows other programs to run and generally provides an easy mechanism for other programs to access various hardware devices on the computer. A Disk operating system is an operating system that is loaded from a harddrive or floppy drive.
CD Rom
A CD Rom is a type of computer storage medium. "CD ROM" stands for "Compact Disc, Read Only Memory". These devices were originally developed for storing music, but were pressed into service for storing all kinds of computer data after their initial introduction. A typical CD Rom can store approximately 650 megabytes of data. The data on a CD Rom is read from the disc by a laser beam in a CD Rom drive.
