TuneUp Utilities - 2006 Instrukcja Użytkownika Pobierz pdf (Strona 95)

Glossary

TuneUp Utilities 2006 97

Color depth

The amount of information used to describe the color of a pixel. One bit can only

have one of two states, on or off (1 or 0). Expressed in colors, this is either black

or white. An 8-bit color depth allows 256 colors. At least eight bits per color are

required for high-quality images. In 24-bit color, three color channels are used

(for example red, green and blue), meaning 3 x 8 bits or 256 x 256 x 256, for a

total of 16.7 million colors.

A cookie is a small file with text information that must be initiated by the author

of a website and that is then copied to the local computer by the Web server

through the browser in regular intervals.

CPU

Short for “central processing unit”.

Cursor/pointer

A special element on the screen, called the cursor when working in text and the

pointer when working with a mouse. This display element can be moved with the

mouse, the arrow keys or a digitizer and is used to enter text or graphical

information at a specific point or location.

Data medium

A medium for the permanent storage of data. These include diskettes, CD/DVD-

ROMs, hard disks, magnetic tape and other devices.

Defragmenter

A program that changes the location of data elements on a disk so that individual

files are saved at a single location for faster processing.

Desktop

A general designation for the area in Windows that is normally seen first after a

user logs on. Icons can be saved here, and this area also includes the Start menu,

the taskbar and the notification area next to the clock.

Device driver

A special program that controls devices and expansion cards, expanding or

adapting the operating system.

Dialog

A set of associated options that are shown on the screen in the form of a window

or box in which settings can be configured.

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TuneUp Utilities - 2006 Instrukcja Użytkownika Strona 95