- 업종: Computer; Software
- Number of terms: 54848
- Number of blossaries: 7
- Company Profile:
Apple Inc., formerly Apple Computer, Inc., is an American multinational corporation headquartered in Cupertino, California, that designs, develops, and sells consumer electronics, computer software and personal computers.
In iPhone OS, used to describe an audio session state in which playback or recording can proceed. Compare inactive.
Industry:Software; Computer
A solution or liquid whose chemical makeup is such that it minimizes changes in pH when acids or bases are added to it.
Industry:Agricultural chemicals
A dialog that appears when the system or an application needs to communicate information to the user. Alerts provide messages about error conditions and warn users about potentially hazardous situations or actions.
Industry:Software; Computer
A sequence of actions to accomplish some task. In cryptography, refers to a sequence of actions, usually mathematical calculations, performed on data to encrypt or decrypt it.
Industry:Software; Computer
Said of graphics whose edges appear jagged; can be remedied by performing anti-aliasing operations.
Industry:Software; Computer
The introduction of distortions or artifacts into digital information during processing operations. In graphics, aliasing can cause edges to appear jagged. In audio, aliasing results in artifacts below the Nyquist frequency, sometimes called aliasing distortion. To avoid aliasing, audio signals must be low-pass filtered to remove energy at or above the Nyquist frequency before sampling. Anti-aliasing operations can be performed to prevent or mitigate the results of aliasing. See anti-aliasing.
Industry:Software; Computer
A lightweight reference to files and folders in Mac OS Standard (HFS) and Mac OS Extended (HFS+) file systems. An alias allows multiple references to files and folders without requiring multiple copies of these items. Aliases are not as fragile as symbolic links because they identify the volume and location on disk of a referenced file or folder; the file or folder can be moved around without breaking the alias. See also symbolic link.
Industry:Software; Computer
A channel dedicated to representing how opaque a given pixel is. Unlike the red, green, and blue channels, which specify the intensity of their respective colors, the alpha channel specifies the opacity of the entire pixel. For example, if a pixel was defined using float values ranging from 0.0 to 1.0, an alpha channel intensity of 1.0 would indicate 100% opacity, and an intensity of 0.0 would indicate 0% opacity, or transparent.
Industry:Software; Computer
The graphics state parameter that Quartz uses to determine how to composite newly painted objects to the existing page. At full intensity (alpha =1.0 ), newly painted objects are opaque. At zero intensity, newly painted objects are invisible (alpha =0.0 ).
Industry:Software; Computer
A movie track that contains alternate data for another track. QuickTime chooses one track to be used when the movie is played. The choice may be based on such considerations as image quality or localization. See also track.
Industry:Software; Computer
