IBM компаниясының Courier қаріптері

Monospaced slab serif font of IBM

Courier is a monospaced slab serif typeface. Courier was created by IBM in the mid 1950s, and was designed by Howard "Bud" Kettler (1919–1999). The Courier name and typeface concept are in the public domain. Courier has been adapted for use as a computer font, and versions of it are installed on most desktop computers.

IBM did not trademark the name Courier, so the typeface design concept and its name are now public domain. According to some sources, a later version for IBM's Selectric typewriters was developed with input from Adrian Frutiger, although Paul Shaw writes that this is a confusion with Frutiger's adaptation of his Univers typeface for the Selectric system. Sources differ on whether the design was published in 1955 or 1956. Kettler was once quoted about how the name was chosen. The font was nearly released with the name "Messenger". After giving it some thought, Kettler said, "A letter can be just an ordinary messenger, or it can be the courier, which radiates dignity, prestige, and stability." Among other IBM specific characters it contains optionally a dotted zero (which seems to have originated as an option on IBM 3270 display controllers) and a slashed zero.

The Courier 10 Pitch BT typeface was released as a font by Bitstream. Courier 10 BT is heavier than Courier New and more closely approximates the look of the original Courier type on paper. The freely available version, often seen as a system font on electronic devices, includes the 255 characters of the ANSI character set in Type 1 format. Courier 10 BT has been donated to the X Consortium by Bitstream (along with Bitstream Charter) and is the default Courier font on most Linux distributions. Expanded Pan European (W1G) character sets are made available for license by Bitstream. Courier Code is a variant of Courier 10 Pitch BT for use in programming. The zero is dotted to better distinguish it from the capital O and the lowercase L has been altered to better distinguish it from the number one. The leading has been increased slightly as well.

Courier New appears as a system font on many electronic devices. This Courier variant was produced for electronic use by Monotype. Its thin appearance when printed on paper owes to its being "digitized directly from the golf ball of the IBM Selectric" without accounting for the visual weight normally added by the typewriter's ink ribbon. ClearType rendering technology includes a hack to make the font appear more legible on screens, though printouts retain the thin look. The font family includes Courier New, Courier New Bold, Courier New Italic, and Courier New Bold Italic. Courier New was introduced as a system font with Windows 3.1, which also included raster Courier fonts. The fonts were also sold commercially by Ascender Corporation. The Ascender fonts have 'WGL' at the end of the font name, and cover only the WGL characters. Courier New features higher line space than Courier. Punctuation marks were reworked to make the dots and commas heavier. Versions from 2.76 onward include Hebrew and Arabic glyphs, with most of the Arabic characters added on non italic fonts. The styling of Arabic glyphs is similar to those found in Times New Roman but adjusted for monospace. The Courier New version 5.00 includes over 3100 glyphs, covering over 2700 characters per font.

This Courier typeface, developed by Alan Dague Greene with funding from John August and Quote Unquote Apps, includes a true Italic style. Courier Prime matches the metrics of Courier Final Draft, with some design changes and improvements aimed at greater legibility and beauty. The typeface was released in January 2013 under the SIL Open Font License. In 2016 the family was extended with Sans Serif and Code versions. By mid 2018 the family included Semi Bold and Medium versions (designed by M. Babek Aliassa) and a Cyrillic alphabet version (designed by Ivan Gladkikh). All fonts in the family are downloadable for free and can be used in any application.

Dark Courier is a normal weight typeface rather than a semi bold or bold as its name may imply. Dark Courier, developed as a TrueType font by HP, was one of the first fonts developed as a Courier New alternative for those who found that typeface too thin. produced a version of Courier called Nimbus Mono L in 1984, and eventually released under the GPL and AFPL (as Type 1 font for Ghostscript) in 1996. It is one of the Ghostscript fonts, free alternatives to 35 core PostScript fonts, which include Courier. It is available in major free and open source operating systems. Tex Gyre Cursor, developed by GUST ("the Polish TeX Users Group"), is based on the URW Nimbus Mono L typeface. FreeMono, a free font descending from URW++ Nimbus Mono L, which, in turn, descends from Courier. It is one of free fonts developed in GNU FreeFont project, first published in 2002. It is used in some free software as a Courier replacement or for Courier font substitution.

Many monospaced typefaces used as alternatives to Courier in coding are sans serif fonts for on screen legibility. Liberation Mono is a sans serif font metrically equivalent to Courier New, developed by Ascender Corp. and published by Red Hat in 2007 under the GPL license with some exceptions. It is used in some Linux distributions as default font replacement for Courier New. Cousine Croscore font, also by Ascender and basically the same as Liberation Mono 2.0

Courier, as a common monospaced font, is often used to signify source code.