(1) To select data. Filters use patterns (masks) against which all data are compared and only matching data are "passed through," hence the concept of a filter. For example, e-mail clients and servers can look for messages with text patterns that are recognized as spam and delete them. An e-mail client can be set up to filter messages and store them in separate mailboxes as a way of organizing the mail, or it can be set to alert the user when a certain type of message arrives. See Bayesian filtering and spam filter.
(2) To change data. In this usage of the term, the concept of a filter (a pass-through device) is less obvious, but nevertheless widely used. For example, a sort routine changes the sequence of data. A conversion routine (import or export filter) changes one type of data, text or graphics format into another. See image filter and parse.
(2) To change data. In this usage of the term, the concept of a filter (a pass-through device) is less obvious, but nevertheless widely used. For example, a sort routine changes the sequence of data. A conversion routine (import or export filter) changes one type of data, text or graphics format into another. See image filter and parse.
 | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2009 The Computer Language Company Inc. All rights reserved. |
Additional Resources
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- GoldWave is a professional digital audio editor. Use it to play, edit, mix, and analyze audio, or apply special effects, such as fade, equalizer, echo, reverse, time warp, noise reduction, silence reduction, pop/click filter, voice over, etc. Record new files from cassettes, albums, radio, or microphone and restore and enhance...
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- Discussion threads 2009-11-04
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- Software downloads 2009-11-04
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- Software downloads 2009-11-03
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- With Juicy Library for iPhone catalog your books, movies, music, games, software, toys, electronics, jewellery, and clothing. Import all your belongings into a digital library with the snapshot of a barcode, manual barcode entry, or item search. Juicy Library for iPhone magically reads the information and downloads that items image...
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- RadioGet plays online radio stations, filters and records their music to MP3 tracks. With over 25,000 free Web radio stations out there, and the ability to add even more, you can listen to music of almost any genre and flavor while recording it to your hard drive. In fact, RadioGet...
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- The perfect computer?
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- ZoneAlarm Internet Security Suite is an essential antivirus, anti-spyware, and firewall protection for your PC. The OSFirewall monitors changes within your computer to spot and stop new attacks that bypass traditional anti-virus protection. The Advanced Download Protection analyzes browser downloads in three unique ways before they can infect your PC...
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- The full-featured and easy-to-use application enables you to record, create, edit, filter, and convert audio files with a few clicks. It meets all your needs for audio editing: cut, copy and paste parts of recordings, if required, apply amazing effects such as echo, amplification and noise reduction to audio files....
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- AV Bros. Puzzle Pro 3.0 is an extremely powerful, flexible and high quality Adobe® Photoshop® filter plug-in (8bf), which is targeted to help you create a highly realistic jig-saw puzzle effect. This Photoshop filter works with any image editing application host that supports Adobe's specification for Photoshop plugins (8bf). Thanks...
- Software downloads 2009-10-31
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