- Industry: 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 relational databases, an attribute in an entity that gives it access to rows in another entity. This attribute must be the primary key of the related entity. For example, an Employee entity can contain the foreign key deptID , which matches the primary key in the entity Department. You can then use deptID as the source attribute in Employee and as the destination attribute in Department to form a relationship between the entities. See also primary key, relationship.
Industry:Software; Computer
A digital certificate together with an associated private key.
Industry:Software; Computer
A group of related pixels, often represented with a rectangular array of values.
Industry:Software; Computer
(1) In electronics, the amount of opposition a circuit presents to an AC (alternating current) signal at a given frequency. Impedance includes both a resistive (frequency-independent) and a reactive (frequency-dependent) component. (2) In acoustics, the ratio of average sound pressure to particle velocity over a given surface area and at a given frequency.
Industry:Software; Computer
An industry-standard protocol created by the Massachusetts Institute of Technology (MIT) to provide authentication over a network. It is a symmetric-key, server-based protocol and is used widely in Macintosh, Windows, and UNIX networks.
Industry:Software; Computer
(1) The complete Mac OS X core operating-system environment, which includes Mach, BSD, the I/O Kit, file systems, and networking components. Also called the kernel environment. (2) In image processing, a grid of numbers used in both convolution and morphological operations (such as dilation and erosion). It is typically represented as a square grid (or matrix) whose height and width are both odd, such as a 3 x 3 grid. Each cell in the grid contains a number. An image process that uses a kernel typically takes these numbers within the kernel and applies them to the image by undergoing a series of arithmetic operations between the kernel values and the image pixel intensity values.
Industry:Software; Computer
(1) An arbitrary value (usually a string) used to locate a piece of data in a data structure such as a dictionary. (2) In security, a piece of secret information required to decode an encrypted message. In modern cryptographic methods, it is usually a lengthy integer.
Industry:Software; Computer
An object (of the EOModel class) that defines, in Entity-Relationship terms, the mapping between enterprise object classes and the database schema. This definition is typically stored in a file created with the EOModeler application. A model also includes the information needed to connect to a particular database server.
Industry:Software; Computer
One of the QuickTime media types, in which sequences of sounds and tones are generated.
Industry:Software; Computer
