In computer science, a keyword is an identifier which indicates a specific command. Many times the keyword is restricted to that core language usage, in which case it is also considered a reserved word. Some common keywords in many programming languages are: else, end, goto, if, print, return, switch, then, while, etc. There are usually restrictions about reusing keywords as names for user-defined objects such as variables or procedures, however some languages are extremely liberal in this approach (such as PostScript), allowing core keywords to be redefined for specific purposes. Languages vary as to what is provided as a keyword and what is a library routine, for example some languages provide keywords for input/output operations whereas in others these are library routines. Wikibooks Wikiversity has more about this subject: School of Computer Science Riverside Graphics Lab Open Directory Project: Computer Science Collection of Computer Science Bibliographies Belief that title science in computer science is inappropriate Categories: Computer science | Academic disciplines ... Identifiers (IDs) are lexical tokens that name entities. ... In computer science, a core language is a pure programming language, generally organized into statement blocks; the core language is often developed into libraries, which are then used during programming. ... A reserved word is a word which, in some computer programming language, cannot be used as an identifier because it is already used for some grammatical purpose. ... Other listings of programming languages are: Categorical list of programming languages Generational list of programming languages Chronological list of programming languages Note: Esoteric programming languages have been moved to the separate List of esoteric programming languages. ... In computer science and mathematics, a variable is a symbol denoting a quantity or symbolic representation. ... A procedure is a series of activities, tasks, steps, decisions, calculations and other processes, that when undertaken in the sequence laid down produces the described result, product or outcome. ... PostScript (PS) is a page description language used primarily in the electronic and desktop publishing areas. ... In computer science, a library is a collection of subprograms used to develop software. ...

Keywords: Words that may be used by viewers searching for information on the internet. Using the best keywords to describe your web site helps get those searchers to visit.

A keyword is a featured word of a technical article. Some publications specify a fixed set of keywords from which those for a particular article should be chosen.

In corpus linguistics a keyword is a word which occurs in a text more often than we would expect to occur by chance alone. Keywords are calculated by carrying out a statistical test (e.g. loglinear) which compares the word frequencies in a text against their expected frequencies derived in a much larger corpus, which acts as a reference for general language use. Mike Scott's corpus analysis tool WordSmith can automatically calculate keywords. Corpus linguistics is the study of language as expressed in samples (corpora) or real world text. ...

In Information Retrieval (aka searching) a keyword is a word or phrase which describes a concept found, but not necessarily explicitly named, in a document. This is what your library catalog means by keyword. Information retrieval (IR) is the art and science of searching for information in documents, searching for documents themselves, searching for metadata which describes documents, or searching within databases, whether relational stand alone databases or hypertext networked databases such as the Internet or intranets, for text, sound, images or data. ...

Keywords are a feature of the internet service provider America Online; which allow one to bypass URLs. An Internet service provider (ISP) is a business or organization that offers users access to the Internet and related services. ... America Online, or AOL for short, is a corporate online service provider and Internet service provider. ... A Uniform Resource Locator, URL (either pronounced as earl (IPA: [ɜː˞l]; SAMPA: [3:`l]) or spelled out), or Web address, is a standardized address for some resource (such as a document or image) on the Internet (or elsewhere). ...

References

Supplier of established Key Word Domain Names & WebSites (http://www.osplanet.org/)

The Free On-line Dictionary of Computing (FOLDOC) is an on-line, searchable encyclopedic dictionary of computing subjects. ... GNU logo The GNU Free Documentation License (GNU FDL or simply GFDL) is a copyleft license for free content, designed by the Free Software Foundation (FSF) for the GNU project. ...

External Links

• Best Promotion Keyword (http://www.weboptimizationangel.com/best-promotion-keyword.html) Top Keyword Generator Suggestion Research Tool.
• Keyword Suggestion Tool (http://www.submitexpress.com/keytracker.html) Find keywords for your website and see their estimated traffic.
• Keyword Misspellings and Typo Generator (http://www.keywordsfinder.com)
• Keyword Analysis (http://www.devtoolz.com/keyword_analysis/)
• Keyword Analysis Tool for Search Engine Optimization (http://seokeywordanalysis.com/seotools/)
• Ranks.nl Keyword Density & Prominence Analyzer (http://www.ranks.nl/tools/spider.html)