Hardware devices such as scanners and fax machines

(CPU) of the computer. Hardware devices such as scanners and fax machines use
this technology.
scanner A hardware device that inputs data from an image, such as a printed
page, into a computer by means of a light sensitive device. The light sensitive
element of the scanner picks up light and dark areas of the image, converts this
into binary code in the form of a bitmap, and conveys this to the central
processing unit (CPU) of the computer.
screen saver A moving picture or pattern that appears on-screen after a period
of mouse or keyboard inactivity. While screen savers were originally designed to
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combat monitor burn-in problems, their widespread use today is largely aesthetic.
scroll bar In a graphical user interface (GUI), a bar located along the edge of a
window or list. Clicking the scroll bar enables you to move up and down, and from
left to right in the on-screen display area.
search engine A program used to search the World Wide Web (WWW) pages
and files for keywords. You can enter keywords about a subject; the search engine
then usually searches as many Web sites as possible and returns a list of the
relevant ones.
server A computer on a network that manages access to resources. Server
computers are multifunctional, and are used in small and more complex
networking environments. For example, on a local area network (LAN), a server
can provide client computer access to such resources as hardware devices and
data. On the Internet, a server computer can provide access to Web pages and
data resources.
setup The way in which a computer's hardware or software is configured.
shareware Copyrighted software that is initially issued free on a trial basis. You
are often encouraged to distribute copies of the program. If you like the software,
you are asked to pay a fee to the software producer for continued use of the
package. Many shareware packages become unusable after a specified length of
time if payment is not made to the producer.
shortcut An icon that provides a quick way of accessing a file, program,
application, Web page, or any other accessible item. Shortcuts are typically
located on the desktop and can be activated by double-clicking.
signature In e-mail applications, text that can automatically be added to the end
of an email message containing details such as the sender's name and address.
silicon A chemical element used as a semiconductor in electrical circuitry. Silicon
provides the base material for the construction of microchips.
silicon chip A tiny electriconic circuit (known as an integrated circuit) composed
of a silicon semiconductor. An electrical circuit with silicon as the semiconductor
material. Silicon chips provide the basis for a wide range of electronic devices.
slide In presentation applications, the basic document used to create on-screen
and printed presentations.