architecture of participation
A phrase coined by Tim O’Reilly that is used to describe the nature of systems that are designed for user contribution. Architecture of Participation is a Web 2.0 concept in which a community of users contributes to the content or to the design and development process.
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- archival backup
A type of backup in which all files are copied to a backup storage device. Archival backups are also called full backup. Contrast with incremental backups, in which only modified files are copied.
- archive
(v.) (1) To copy files to a long-term storage medium for backup. Large computer systems often have two layers of backup, the first of which is a disk drive. Periodically, the computer operator will archive files on the disk to a second storage device, usually a tape drive. On smaller systems, archiving is synonymous with […]
- archived topics
In online forums and other online discussion spaces posts and conversations that are inactive or have been closed to new messages are often archived on the service. Users can still read these messages but they will be unable to reply to them. When using chat services, the closed chat discussions are called transcripts rather than […]
- area chart
A type of presentation graphic that emphasizes a change in values by filling in the portion of the graph beneath the line connecting various data points.
- areal density
Also called bit density.The amount of data that can be packed onto a storage medium. Areal densities are generally measured in gigabits per square inch. The term is useful for comparing different types of media, such as magnetic disks and optical disks. Current magnetic and optical disks have areal densities of several gigabits per square […]