Filter - Computing

Computing

In computing:

• Filter (higher-order function), a higher-order function that processes a data structure (typically a list) in some order to produce a new data structure containing exactly those elements of the original data structure for which a given predicate returns the boolean value true
• A program to process a data stream:
  • Filter (software), a computer program to process a data stream
  • Filter (Unix), a program that gets most of its data from its standard input (the main input stream) and writes its main results to its standard output (the main output stream)
  • Filter (video)
  • Email filter
  • Internet filter
  • Wordfilter, a script typically used on Internet forums or chat rooms that automatically scans users' posts or comments as they are submitted and automatically changes or censors particular words or phrases
• BPF filter expression used in the qualification of network data
• DSL filter, a low-pass filter installed between analog devices and a telephone line