A word processor is an electronic device (later a computer software application) for text, composing, editing, formatting, and printing.

The word processor was a stand-alone office machine developed in the 1960s, combining the keyboard text-entry and printing functions of an electric typewriter with a recording unit, either tape or floppy disk (as used by the Wang machine) with a simple dedicated computer processor for the editing of text."TECHNOWRITERS" Popular Mechanics, June 1989, pp. 71-73. Although features and designs varied among manufacturers and models, and new features were added as technology advanced, the first word processors typically featured a monochrome display and the ability to save documents on memory cards or diskettes. Later models introduced innovations such as spell-checking programs, and improved formatting options.

As the more versatile combination of personal computers and printers became commonplace, and computer software applications for word processing became popular, most business machine companies stopped manufacturing dedicated word processor machines. In 2009 there were only two U.S. companies, Classic and AlphaSmart, which still made them.Mark Newhall, Farm Show Many older machines, however, remain in use. Since 2009, Sentinel has offered a machine described as a "word processor", but it is more accurately a highly specialised microcomputer used for accounting and publishing.StarLux Illumination catalog In 2014, U.S. company Astrohaus launched the Freewrite series of electronic word processors.

Word processing was one of the earliest applications for the personal computer in office productivity, and was the most widely used application on personal computers until the World Wide Web rose to prominence in the mid-1990s.

Although the early word processors evolved to use tag-based markup for document formatting, most modern word processors take advantage of a graphical user interface providing some form of what-you-see-is-what-you-get ("WYSIWYG") editing. Most are powerful systems consisting of one or more programs that can produce a combination of s, graphics and text, the latter handled with type-setting capability. Typical features of a modern word processor include multiple font sets, spell checking, grammar checking, a built-in thesaurus, automatic text correction, web integration, HTML conversion, pre-formatted publication projects such as newsletters and to-do lists, and much more.

Microsoft Word is the most widely used word processing software according to a user tracking system built into the software. Microsoft estimates that roughly half a billion people use the Microsoft Office suite, which includes Word. Many other word processing applications exist, including WordPerfect (which dominated the market from the mid-1980s to early-1990s on computers running Microsoft's MS-DOS operating system, and still (2014) is favored for legal applications), Apple's Pages application, and open source applications such as OpenOffice.org Writer, LibreOffice Writer, AbiWord, KWord, and LyX. Web-based word processors such as Office Online or Google Docs are a relatively new category.

Characteristics Word processors evolved dramatically once they became software programs rather than dedicated machines. They can usefully be distinguished from text editors, the category of software they evolved from.

A text editor is a program that is used for typing, copying, pasting, and printing text (a single character, or strings of characters). Text editors do not format lines or pages. (There are extensions of text editors which can perform formatting of lines and pages: batch document processing systems, starting with TJ-2 and RUNOFF and still available in such systems as LaTeX and Ghostscript, as well as programs that implement the paged-media extensions to HTML and CSS). Text editors are now used mainly by programmers, website designers, computer system administrators, and, in the case of LaTeX, by mathematicians and scientists (for complex formulas and for citations in rare languages). They are also useful when fast startup times, small file sizes, editing speed, and simplicity of operation are valued, and when formatting is unimportant. Due to their use in managing complex software projects, text editors can sometimes provide better facilities for managing large writing projects than a word processor.

Word processing added to the text editor the ability to control type style and size, to manage lines (word wrap), to format documents into pages, and to number pages. Functions now taken for granted were added incrementally, sometimes by purchase of independent providers of add-on programs. Spell checking, grammar checking and mail merge were some of the most popular add-ons for early word processors. Word processors are also capable of hyphenation, and the management and correct positioning of footnotes and endnotes.

More advanced features found in recent word processors include: Collaborative editing, allowing multiple users to work on the same document. Indexing assistance. (True indexing, as performed by a professional human indexer, is far beyond current technology, for the same reasons that fully automated, literary-quality machine translation is.) Creation of tables of contents. Management, editing, and positioning of visual material (illustrations, diagrams), and sometimes sound files. Automatically managed (updated) cross-references to pages or notes. Version control of a document, permitting reconstruction of its evolution. Non-printing comments and annotations. Generation of document statistics (characters, words, readability level, time spent editing by each user). "Styles", which automate consistent formatting of text body, titles, subtitles, highlighted text, and so on.

Later desktop publishing programs were specifically designed with elaborate pre-formatted layouts for publication, offering only limited options for changing the layout, while allowing users to import text that was written using a text editor or word processor, or type the text in themselves.

History Word processors are descended from the Friden Flexowriter, which had two punched tape stations and permitted switching from one to the other (thus enabling what was called the "chain" or "form letter", one tape containing names and addresses, and the other the body of the letter to be sent). It did not wrap words, which was begun by IBM's Magnetic Tape Selectric Typewriter (later, Magnetic Card Selectric Typewriter).

IBM Selectric

Expensive Typewriter, written and improved between 1961 and 1962 by Steve Piner and L. Peter Deutsch, was a text editing program that ran on a DEC PDP-1 computer at MIT. Since it could drive an IBM Selectric typewriter (a letter-quality printer), it may be considered the first-word processing program, but the term word processing itself was only introduced, by IBM's Böblingen Laboratory in the late 1960s.

In 1969, two software based text editing products (Astrotype and Astrocomp) were developed and marketed by Information Control Systems (Ann Arbor Michigan). Both products used the Digital Equipment Corporation PDP-8 mini computer, DECtape (4” reel) randomly accessible tape drives, and a modified version of the IBM Selectric typewriter (the IBM 2741 Terminal). These 1969 products preceded CRT display-based word processors. Text editing was done using a line numbering system viewed on a paper copy inserted in the Selectric typewriter.

Evelyn Berezin invented a Selectric-based word processor in 1969, and founded the Redactron Corporation to market the $8,000 machine. Redactron was sold to Burroughs Corporation in 1976, where the Redactron-II and -III were sold both as standalone units and as peripherals to the company's mainframe computers.

By 1971 word processing was recognized by the New York Times as a "buzz word". A 1974 Times article referred to "the brave new world of Word Processing or W/P. That's International Business Machines talk ... I.B.M. introduced W/P about five years ago for its Magnetic Tape Selectric Typewriter and other electronic razzle-dazzle."

IBM defined the term in a broad and vague way as "the combination of people, procedures, and equipment which transforms ideas into printed communications," and originally used it to include dictating machines and ordinary, manually operated Selectric typewriters. reports introduction of "five new models of 'input word processing equipment', better known in the past as dictation equipment" and gives IBM's definition of WP as "the combination of people, procedures, and equipment which transforms ideas into printed communications". The machines described were of course ordinary dictation machines recording onto magnetic belts, not voice typewriters. By the early seventies, however, the term was generally understood to mean semiautomated typewriters affording at least some form of editing and correction, and the ability to produce perfect "originals". Thus, the Times headlined a 1974 Xerox product as a "speedier electronic typewriter", but went on to describe the product, which had no screen,Miller, Diane Fisher (1997) "My Life with the Machine": "By Sunday afternoon, I urgently want to throw the Xerox 800 through the window, then run over it with the company van. It seems that the instructor forgot to tell me a few things about doing multi-page documents ... To do any serious editing, I must use both tape drives, and, without a display, I must visualize and mentally track what is going onto the tapes." as "a word processor rather than strictly a typewriter, in that it stores copy on magnetic tape or magnetic cards for retyping, corrections, and subsequent printout".

Mainframe systems In the late 1960s IBM provided a program called FORMAT for generating printed documents on any computer capable of running Fortran IV. Written by Gerald M. Berns, FORMAT was described in his paper "Description of FORMAT, a Text-Processing Program" (Communications of the ACM, Volume 12, Number 3, March, 1969) as "a production program which facilitates the editing and printing of 'finished' documents directly on the printer of a relatively small (64k) computer system. It features good performance, totally free-form input, very flexible formatting capabilities including up to eight columns per page, automatic capitalization, aids for index construction, and a minimum of nontext [control elements] items." Input was normally on punched cards or magnetic tape, with up to 80capital letters and non-alphabetic characters per card. The limited typographical controls available were implemented by control sequences; for example, letters were automatically converted to lower case unless they followed a full stop, that is, the "period" character. Output could be printed on a typical line printer in all-capitals — or in upper and lower case using a special ("TN") printer chain — or could be punched as a paper tape which could be printed, in better than line printer quality, on a Flexowriter. A workalike program with some improvements, DORMAT, was developed and used at University College London.

Electromechanical paper-tape-based equipment such as the Friden Flexowriter had long been available; the Flexowriter allowed for operations such as repetitive typing of form letters (with a pause for the operator to manually type in the variable information), and when equipped with an auxiliary reader, could perform an early version of "mail merge". Circa 1970 it began to be feasible to apply electronic computers to office automation tasks. IBM's Mag Tape Selectric Typewriter (MT/ST) and later Mag Card Selectric (MCST) were early devices of this kind, which allowed editing, simple revision, and repetitive typing, with a one-line display for editing single lines. The first novel to be written on a word processor, the IBM MT/ST, was Len Deighton's Bomber, published in 1970.

Effect on office administration