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In data deduplication, data synchronization and remote data compression, Chunking is a process to split a file into smaller pieces called chunks by the chunking algorithm. It can help to eliminate duplicate copies of repeating data on storage, or reduces the amount of data sent over the network by only selecting changed chunks.
This is useful when saving large files onto smaller volumes or breaking large files up into smaller files for network messages of limited size (email, newsgroups). It also allows the creation of parity files such as parchive (PAR) to verify and restore missing or corrupted package files.
Express Zip File Compression Software is a file compression and archiving software program developed by NCH Software for Windows and Mac OS first released in 2010. [1] It offers the ability to open, manage, archive, extract, and compress digital documents into .zip, .tar, .tgz, .wim, .arj, and .lzh as well as additional archive formats. [2]
Previous versions of RAR split large archives into several smaller files, creating a "multi-volume archive". Numbers were used in the file extensions of the smaller files to keep them in the proper sequence. The first file used the extension .rar, then .r00 for the second, and then .r01, .r02, etc.
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Files that are often appended to (as with log files) as well as the frequent adding and deleting of files (as with emails and web browser cache), larger files (as with videos) and greater numbers of files contribute to fragmentation and consequent performance loss. Defragmentation attempts to alleviate these problems.
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Data: By splitting a single sequential file into smaller data files to provide parallel access Pipeline : allowing the simultaneous running of several components on the same data stream , e.g. looking up a value on record 1 at the same time as adding two fields on record 2