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File System
Chapt 5
30
Computer Networking
Undergraduate 1
05/07/2013

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Term
auditing
Definition
the process an OS uses to detect and log security related events
Term
basic disk
Definition
A disk that contains basic volumes, such as pimary partitions, extended partitions, and logical drives,
Term
binary search
Definition
a programming technique for quickly locating an item in a sequential list.
Term
buffer cache
Definition
a region of memory that holds frequently used data values,
Term
cluster address
Definition
the location of a cluster on a hard drive.
Term
compression
Definition
a means of reducing the amount of space needed to store a block of date.
Term
decompression
Definition
the opposite of compression ; restoring the contents of a compressed file to its original form
Term
defragmentation
Definition
the process of writing parts of a file to contiguaus sectors on a hard drive to speed access and retrieval.
Term
dynamic disk
Definition
a disk that contains dynamic volumes, such as simple vollumes. ith disk storage is devided in to volumes instead of partintions
Term
encryption
Definition
the process of encoding data to prevent unauthorized a
Term
FAT12
Definition
A file system, first used by DOS, that uses 12 bit sector addresses.
Term
FAT16
Definition
A file system, first used by DOS, that uses 16 bit sector addresses.
Term
FAT32
Definition
A file system, first used by Windowns 95 OSR 2, that uses 32-bit sector addresses( of which 28 bits are currently used)
Term
file allocation table (FAT)
Definition
A data structure that DOS creates on a disk when it is formatted
Term
file system
Definition
the overall structure in which files are nemed, stored, and organized. a file system consistsof filess, directorries (or folders), and the information needed to locate and acess these items
Term
formatting
Definition
preparing a file system so that a disk can be used to store programs and data
Term
fragmentation
Definition
the scattering of parts of the same file overdiffrent areas of a hard drive
Term
master files table(MFT)
Definition
a special file that contains the attributes of each file created using NTFS; used to locate a file on a hard drive
Term
NTFS (new Technology File System)
Definition
the defaults file system for new installations of Winddows &; first used by Windows NT
Term
Partition
Definition
A logical storage area on a drive
Term
Primary Partition
Definition
a portion of a drive that functions as a physically separate allocatins unit
Term
quota
Definition
a restriction on userss' ability to exceed limits placed on file system resources. It allows administrators to effectively manage disk space shared by multiple users
Term
sector
Definition
the smallest unit of space on a disk; typically 512 bytes
Term
storage area
Definition
an area on a disk that can be allocated and formatted for a file system
Term
subdirectory
Definition
a logical grouping of related fiels in Windows 7
Term
superblock
Definition
part of a UFS file system taht contains an identifying number and others numbes that describe tehe file system geometry, statistics, and behavioral parametes.
Term
swap file
Definition
a hidden file on a hard drive that is used to hold pars of programs and data files that do not fit in memory,. The OS moves data from the swap file to memory as needed and moves data out of memorry to teh swap file to make room for new data
Term
terabyte
Definition
A measurement of highpcapacity storage, is about 1 trillian bytes
Term
virtual file allocation table (VFAT)
Definition
a file system first used by Windows 95; the first file system to support long filesnames
Term
volume
Definition
a fixed amount of storage on a hard drive.
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