The start-up of a computer from a powered-down, or off, state.
Also called a hard boot.
Contrast with warm boot, restarting a computer via the operating system.
- cold site
(kōld sīt)(n.) A disaster recovery facility that provides only the physical space for recovery operations while the organization using the space provides its own hardware and softwaresystems.
- cold standby
(cōld stand´bī) (n.) A method of redundancy in which the secondary (i.e., backup) system is only called upon when the primary system fails. The system on cold standby receives scheduled data backups, but less frequently than a warm standby. Cold standby systems are used for non-critical applications or in cases where data is changed infrequently.
- collaborative filtering
Abbreviated as CF, in electronic commerce it is the method and process used to match data of one user with data for similar users, based on purchase and browsing patterns. Collaborative filtering allows merchants to provide customers with future purchase recommendations.
- collaborative learning
In computer-based training (CBT), also called computer-assisted instruction (CAI), collaborative learning incorporates a wide array of communications tools, including Internet-based communication, to enable groups of learners to develop knowledge through interaction.
)To compress a view of a hierarchy so that only the roots of each branch are visible. The opposite of collapse is expand, which makes the entire branch visible.