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cluster |
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cluster, in astronomy: see star cluster star cluster, a group of stars near each other in space and resembling each other in certain characteristics that suggest a common origin for the group. Stars in the same cluster move at the same rate and in the same direction.
..... Click the link for more information. ; galaxy galaxy, large aggregation of stars, gas, and dust, typically containing billions of stars. Recognition that galaxies are independent star systems outside the Milky Way came from a study of the Andromeda Galaxy (1926–29) by Edwin P. ..... Click the link for more information. . cluster (1) Two or more systems working together. See clustering.(2) Also called an "allocation unit" or "file allocation unit," it is some number of disk sectors that are treated as a unit. A cluster is the smallest unit of storage the operating system's file system can manage. That means if a 1KB file is stored in a system with a 32KB cluster (see table below), the 1KB file takes up 32KB of disk space. Following are the cluster sizes for the FAT file systems on Windows/DOS computers. See FAT, FAT32 and lost cluster.
FAT16
Disk Size Cluster size
0-128MB 2KB
128-256MB 4KB
256-512MB 8KB
512MB-1GB 16KB
1-2GB 32KB
FAT32
Disk Size Cluster size
512MB-8GB 4KB
8-16GB 8KB
16-32GB 16KB
32GB+ 32KB
cluster 1. Astronomy an aggregation of stars or galaxies moving together through space 2. Chem a. a chemical compound or molecule containing groups of metal atoms joined by metal-to-metal bonds b. the group of linked metal atoms present cluster [′kləs·tər] (astronomy) (computer science) In a clustered file, one of the classes into which records with similar sets of content identifiers are grouped. A grouping of hardware devices in a distributed processing system. A group of disk sectors that is treated as a single entity by the operating system (engineering) A pyrotechnic signal consisting of a group of stars or fireballs. A grouping of rocket motors fastened together. (ordnance) A collection of small bombs held together by an adapter for dropping.
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