- 行业: 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.
An object that describes how a stream of data, depending on direction, should either be laid into memory or extracted from memory. It represents a segment of memory holding the data involved in an I/O transfer and is specified as one or more physical or virtual address ranges. The object is derived from the IOMemoryDescriptor class. See also DMA, memory cursor
Industry:Software; Computer
A technique used to improve picture quality when you are attempting to display an image that exists at a higher bit-depth representation on a lower bit-depth device. For example, you might want to dither a 24-bits-per-pixel image for display on an 8-bit screen.
Industry:Software; Computer
Data Link Interface Layer. The part of the Mac OS X kernel’s networking infrastructure that provides the interface between protocol handling and network device drivers in the I/O Kit. A generalization of the BSD “ifnet” architecture.
Industry:Software; Computer
A file whose contents are mapped into memory. The virtual-memory system transfers portions of these contents from the file to physical memory in response to page faults. Thus, the disk file serves as backing store for the code or data not immediately needed in physical memory.
Industry:Software; Computer
A user-configurable, onscreen, interface element that provides a simple way for users to launch frequently used applications and documents. It also houses minimized windows and the Trash.
Industry:Software; Computer
A unit or collection of data, contained in a file or sandboxing, that can be operated on by an application. In Search Kit, anything that contains text and that the Search Kit client application addresses as a document—an RTF document, a PDF file, a Mail message, an Address Book entry, the contents at an Internet URL, the result of a database query, and so on. See also document URL object.
Industry:Software; Computer
A simple protocol for making remote procedure requests to Internet-based servers.
Industry:Software; Computer
