ROM
See microprocessor.
S
scanner A device that creates digital images of printed documents and photographs. Software allows you to save and edit the images on the computer. See digital. See also software.
screen saver A moving picture or pattern that appears on the screen when you stop using your computer for a specified period of time. Originally designed to protect the monitor, screen savers are now used for amusement.
scroll To gradually move information across the screen when a document or Web page is too long or too wide to view all at once. Scroll bars are located along the right side and across the bottom of a window. When scroll arrows are present at the ends of the bars, you know that some information is off the screen. Click on one of the arrows to scroll the information into view.
scroll mouse A mouse with a scroll wheel (between the two mouse buttons) for
automatic scrolling through long documents or Web pages.
search engine A programme, accessed on the Internet, that allows you to search large databases for information, using keywords or phrases. See database.
secure Web site A Web site that encrypts data to protect it from unauthorised use. When you purchase items over the Internet, you are asked to type your name, mailing address,
serial port A small connector on the back of the computer (or keyboard) for plugging in a thin cable attached to a serial device, such as a mouse. Serial devices transfer data, one bit at a time, through a data wire. The serial cable has two wires for bi- directional communication (sending and receiving information simultaneously). See digital. See also parallel port.
shareware Software you can try before you buy. After a trial period, usually
30days, the programme
shortcut An icon on the Windows desktop that you
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