IPA Extensions unicode block
Encyclopedia
IPA Extensions is a block
(0250–02AF) of the Unicode
standard that contains full size letters used in the International Phonetic Alphabet
(IPA). Both modern and historical characters are included, as well as former and proposed IPA signs and non-IPA phonetic letters. Additional characters employed for phonetics, like the palatalization sign, are encoded in the blocks Phonetic Extensions (1D00–1D7F) and Phonetic Extensions Supplement (1D80–1DBF). Diacritics are found in the Spacing Modifier Letters (02B0–02FF) and Combining Diacritical Marks (0300–036F) blocks.
With IPA's ability to use Unicode for the presentation of phonetic symbols, ASCII
-based systems such as X-SAMPA
or Kirshenbaum
are being supplanted. Within the Unicode blocks there are also a few former IPA characters no longer in international use by linguists.
The following table shows the contents of the block as of Unicode version 6.0:
Unicode block
In Unicode, a block is defined as one contiguous range of code points. Blocks are named uniquely and have no overlap. They may be defined with the starting and ending code points. The block explicitly can include code points that are unassigned and non-characters. Code points not belonging to any...
(0250–02AF) of the Unicode
Unicode
Unicode is a computing industry standard for the consistent encoding, representation and handling of text expressed in most of the world's writing systems...
standard that contains full size letters used in the International Phonetic Alphabet
International Phonetic Alphabet
The International Phonetic Alphabet "The acronym 'IPA' strictly refers [...] to the 'International Phonetic Association'. But it is now such a common practice to use the acronym also to refer to the alphabet itself that resistance seems pedantic...
(IPA). Both modern and historical characters are included, as well as former and proposed IPA signs and non-IPA phonetic letters. Additional characters employed for phonetics, like the palatalization sign, are encoded in the blocks Phonetic Extensions (1D00–1D7F) and Phonetic Extensions Supplement (1D80–1DBF). Diacritics are found in the Spacing Modifier Letters (02B0–02FF) and Combining Diacritical Marks (0300–036F) blocks.
With IPA's ability to use Unicode for the presentation of phonetic symbols, ASCII
ASCII
The American Standard Code for Information Interchange is a character-encoding scheme based on the ordering of the English alphabet. ASCII codes represent text in computers, communications equipment, and other devices that use text...
-based systems such as X-SAMPA
X-SAMPA
The Extended Speech Assessment Methods Phonetic Alphabet is a variant of SAMPA developed in 1995 by John C. Wells, professor of phonetics at the University of London. It is designed to unify the individual language SAMPA alphabets, and extend SAMPA to cover the entire range of characters in the...
or Kirshenbaum
Kirshenbaum
Kirshenbaum, sometimes called ASCII-IPA or erkIPA, is a system used to represent the International Phonetic Alphabet in ASCII. This way it allows typewriting IPA-symbols by regular keyboard. It was developed for Usenet, notably the newsgroups sci.lang and alt.usage.english...
are being supplanted. Within the Unicode blocks there are also a few former IPA characters no longer in international use by linguists.
The following table shows the contents of the block as of Unicode version 6.0:
Code | Glyph | Decimal | Unicode name | IPA phonetic description | IPA No. |
---|---|---|---|---|---|
U+0250 | ɐ | Latin Small Letter Turned A | Near-open central vowel | 324 | |
U+0251 | ɑ | Latin Small Letter Alpha | Open back unrounded vowel | 305 | |
U+0252 | ɒ | Latin Small Letter Turned Alpha | Open back rounded vowel Open back rounded vowel The open back rounded vowel, or low back rounded vowel, is a type of vowel sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is . The symbol is called turned script a, because it is a rotated version of script a, so-called because it... |
313 | |
U+0253 | ɓ | Latin Small Letter B with Hook | Voiced bilabial implosive | 160 | |
U+0254 | ɔ | Latin Small Letter Open O | Open-mid back rounded vowel | 306 | |
U+0255 | ɕ | Latin Small Letter C with Curl | Voiceless alveolo-palatal fricative | 182 | |
U+0256 | ɖ | Latin Small Letter D with Tail | Voiced retroflex plosive Voiced retroflex plosive The voiced retroflex plosive is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is , and the equivalent X-SAMPA symbol is d`. The IPA symbol is a lowercase letter d with a rightward-pointing tail protruding... |
106 | |
U+0257 | ɗ | Latin Small Letter D with Hook | Voiced alveolar implosive | 162 | |
U+0258 | ɘ | Latin Small Letter Reversed E | Close-mid central unrounded vowel Close-mid central unrounded vowel The close-mid central unrounded vowel, or high-mid central unrounded vowel, is a type of vowel sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is . This is a reversed letter e, and should not be confused with the schwa or turned e ǝ... |
397 | |
U+0259 | ə | Latin Small Letter Schwa Schwa In linguistics, specifically phonetics and phonology, schwa can mean the following:*An unstressed and toneless neutral vowel sound in some languages, often but not necessarily a mid-central vowel... |
Mid central vowel | 322 | |
U+025A | ɚ | Latin Small Letter Schwa with Hook | Rhotacized R-colored vowel In phonetics, an R-colored or rhotic vowel is a vowel that is modified in a way that results in a lowering in frequency of the third formant... Mid central vowel |
327 | |
U+025B | ɛ | Latin Small Letter Open E | Open-mid front unrounded vowel | 303 | |
U+025C | ɜ | Latin Small Letter Reversed Open E | Open-mid central unrounded vowel | 326 | |
U+025D | ɝ | Latin Small Letter Reversed Open E with Hook | Rhotacized R-colored vowel In phonetics, an R-colored or rhotic vowel is a vowel that is modified in a way that results in a lowering in frequency of the third formant... Open-mid central unrounded vowel |
||
U+025E | ɞ | Latin Small Letter Closed Reversed Open E | Open-mid central rounded vowel Open-mid central rounded vowel The open-mid central rounded vowel, or low-mid central rounded vowel, is a type of vowel sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is , and the equivalent X-SAMPA symbol is 3\... |
395 | |
U+025F | ɟ | Latin Small Letter Dotless J with Stroke | Voiced palatal plosive Voiced palatal plosive The voiced palatal plosive is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is ⟨⟩, a barred dotless ⟨j⟩ , and the equivalent X-SAMPA symbol is J\.The sound does not exist as a phoneme in English, but is... |
108 | |
U+0260 | ɠ | Latin Small Letter G with Hook | Voiced velar implosive Voiced velar implosive The voiced velar implosive is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is , and the equivalent X-SAMPA symbol is g_<.-Occurrence:... |
166 | |
U+0261 | ɡ | Latin Small Letter Script G | Voiced velar plosive Voiced velar plosive The voiced velar plosive is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is , and the equivalent X-SAMPA symbol is g. Strictly, the IPA symbol is the so-called "opentail G" , though the "looptail G" is... |
110 | |
U+0262 | ɢ | Latin Letter Small Capital G | Voiced uvular plosive | 112 | |
U+0263 | ɣ | Latin Small Letter Gamma | Voiced velar fricative Voiced velar fricative The voiced velar fricative is a type of consonantal sound, used in various spoken languages. It is not found in English today, but did exist in Old English... |
141 | |
U+0264 | ɤ | Latin Small Letter Rams Horn | Close-mid back unrounded vowel Close-mid back unrounded vowel The close-mid back unrounded vowel, or high-mid back unrounded vowel, is a type of vowel sound, used in some spoken languages. Its symbol in the International Phonetic Alphabet is , called "ram's horns"... |
315 | |
U+0265 | ɥ | Latin Small Letter Turned H | Labial-palatal approximant Labial-palatal approximant The labialized palatal approximant, also called the labial–palatal or labio-palatal approximant, is a type of consonantal sound, used in some spoken languages. It has two constrictions in the vocal tract: with the tongue on the palate, and rounded at the lips. The symbol in the International... |
171 | |
U+0266 | ɦ | Latin Small Letter H with Hook | Voiced glottal fricative | 147 | |
U+0267 | ɧ | Latin Small Letter Heng with Hook | Voiceless postalveolar fricative Voiceless postalveolar fricative The voiceless palato-alveolar fricative or voiceless domed postalveolar fricative is a type of consonantal sound, used in many spoken languages, including English... + Voiceless velar fricative Voiceless velar fricative The voiceless velar fricative is a type of consonantal sound used in some spoken languages. The sound was part of the consonant inventory of Old English and can still be found in some dialects of English, most notably in Scottish English.... |
175 | |
U+0268 | ɨ | Latin Small Letter I with Stroke | Close central unrounded vowel Close central unrounded vowel The close central unrounded vowel, or high central unrounded vowel, is a type of vowel sound used in some languages. The symbol in the International Phonetic Alphabet that represents this sound is . The IPA symbol is the letter i with a horizontal bar... |
317 | |
U+0269 | ɩ | Latin Small Letter Iota | pre-1989 form of "ɪ" (obsolete) | 399 | |
U+026A | ɪ | Latin Letter Small Capital I | Near-close near-front unrounded vowel | 319 | |
U+026B | ɫ | Latin Small Letter L with Middle Tilde | Velar Velarization Velarization is a secondary articulation of consonants by which the back of the tongue is raised toward the velum during the articulation of the consonant.In the International Phonetic Alphabet, velarization is transcribed by one of three diacritics:... /pharyngeal Alveolar lateral approximant Alveolar lateral approximant The alveolar lateral approximant, also known as clear l, is a type of consonantal sound used in some spoken languages. The symbol in the International Phonetic Alphabet that represents dental, alveolar, and postalveolar lateral approximants is , and the equivalent X-SAMPA symbol is l.As a... |
209 | |
U+026C | ɬ | Latin Small Letter L with Belt | Voiceless alveolar lateral fricative Voiceless alveolar lateral fricative The voiceless alveolar lateral fricative is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents voiceless dental, alveolar, and postalveolar fricatives is , and the equivalent X-SAMPA symbol is K... |
148 | |
U+026D | ɭ | Latin Small Letter L with Retroflex Hook | Retroflex lateral approximant | 156 | |
U+026E | ɮ | Latin Small Letter Lezh | Voiced alveolar lateral fricative | 149 | |
U+026F | ɯ | Latin Small Letter Turned M | Close back unrounded vowel Close back unrounded vowel The close back unrounded vowel, or high back unrounded vowel, is a type of vowel sound used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is . Typographically a turned letter m, given its relation to the sound represented by the letter u it... |
316 | |
U+0270 | ɰ | Latin Small Letter Turned M with Long Leg | Velar approximant | 154 | |
U+0271 | ɱ | Latin Small Letter M with Hook | Labiodental nasal | 115 | |
U+0272 | ɲ | Latin Small Letter N with Left Hook | Palatal nasal Palatal nasal The palatal nasal is a type of consonant, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is , a lowercase letter n with a leftward-pointing tail protruding from the bottom of the left stem of the letter. The equivalent X-SAMPA symbol is J... |
118 | |
U+0273 | ɳ | Latin Small Letter N with Retroflex Hook | Retroflex nasal | 117 | |
U+0274 | ɴ | Latin Letter Small Capital N | Uvular nasal | 120 | |
U+0275 | ɵ | Latin Small Letter Barred O | Close-mid central rounded vowel | 323 | |
U+0276 | ɶ | Latin Letter Small Capital OE | Open front rounded vowel Open front rounded vowel The open front rounded vowel, or low front rounded vowel, is a type of vowel sound, not confirmed to be phonemic in any spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is , and the equivalent X-SAMPA symbol is &. The symbol is a small caps rendition... |
312 | |
U+0277 | ɷ | Latin Small Letter Closed Omega | pre-1989 form of "ʊ" (obsolete) | 398 | |
U+0278 | ɸ | Latin Small Letter Phi | Voiceless bilabial fricative Voiceless bilabial fricative -See also:* List of phonetics topics... |
126 | |
U+0279 | ɹ | Latin Small Letter Turned R | Alveolar approximant | 151 | |
U+027A | ɺ | Latin Small Letter Turned R with Long Leg | Alveolar lateral flap | 181 | |
U+027B | ɻ | Latin Small Letter Turned R with Hook | Retroflex approximant | 152 | |
U+027C | ɼ | Latin Small Letter R with Long Leg | Alveolar trill Alveolar trill The alveolar trill is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents dental, alveolar, and postalveolar trills is , and the equivalent X-SAMPA symbol is r. It is commonly called the rolled R, rolling R, or trilled R... |
122 | |
U+027D | ɽ | Latin Small Letter R with Tail | Retroflex flap | 125 | |
U+027E | ɾ | Latin Small Letter R with Fishhook | Alveolar tap Alveolar tap The alveolar flap or tap is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents dental, alveolar, and postalveolar flaps is .-Definition:... |
124 | |
U+027F | ɿ | Latin Small Letter Reversed R with Fishhook | Syllabic Syllabic consonant A syllabic consonant is a consonant which either forms a syllable on its own, or is the nucleus of a syllable. The diacritic for this in the International Phonetic Alphabet is the under-stroke, ⟨⟩... voiced alveolar fricative Voiced alveolar fricative The voiced alveolar fricatives are consonantal sounds. The symbol in the International Phonetic Alphabet that represents these sounds depends on whether a sibilant or non-sibilant fricative is being described.... (Sinologist usage) |
||
U+0280 | ʀ | Latin Letter Small Capital R | Uvular trill Uvular trill The uvular trill is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is , a small capital R... |
123 | |
U+0281 | ʁ | Latin Letter Small Capital Inverted R | Voiced uvular fricative | 143 | |
U+0282 | ʂ | Latin Small Letter S with Hook | Voiceless retroflex fricative | 136 | |
U+0283 | ʃ | Latin Small Letter Esh | Voiceless postalveolar fricative Voiceless postalveolar fricative The voiceless palato-alveolar fricative or voiceless domed postalveolar fricative is a type of consonantal sound, used in many spoken languages, including English... |
134 | |
U+0284 | ʄ | Latin Small Letter Dotless J with Stroke and Hook | 164 | ||
U+0285 | ʅ | Latin Small Letter Squat Reversed Esh | ? (Sinologist usage) | ||
U+0286 | ʆ | Latin Small Letter Esh with Curl | Voiceless alveolo-palatal fricative (obsolete) | 204 | |
U+0287 | ʇ | Latin Small Letter Turned T | Dental click Dental click Dental clicks are a family of click consonants found, as constituents of words, only in Africa and in the Damin ritual jargon of Australia. The tut-tut! or tsk! tsk! sound used to express disapproval or pity is a dental click, although it isn't a speech sound in that context.The symbol in the... (obsolete) |
201 | |
U+0288 | ʈ | Latin Small Letter T with Retroflex Hook | Voiceless retroflex plosive Voiceless retroflex plosive -External links:*... |
105 | |
U+0289 | ʉ | Latin Small Letter U Bar | Close central rounded vowel | 318 | |
U+028A | ʊ | Latin Small Letter Upsilon | Near-close near-back vowel | 321 | |
U+028B | ʋ | Latin Small Letter V with Hook | Labiodental approximant Labiodental approximant The labiodental approximant is a type of consonantal sound, similar to an English double-u pronounced with the teeth and lips held in the position used to articulate the letter vee, used in some spoken languages... |
150 | |
U+028C | ʌ | Latin Small Letter Turned V | Open-mid back unrounded vowel | 314 | |
U+028D | ʍ | Latin Small Letter Turned W | Voiceless labiovelar approximant Voiceless labiovelar approximant The voiceless labiovelar approximant is a type of consonantal sound, used in some spoken languages... |
169 | |
U+028E | ʎ | Latin Small Letter Turned Y | Palatal lateral approximant Palatal lateral approximant The palatal lateral approximant is a type of consonantal sound used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is , a rotated lowercase letter ⟨y⟩ , and the equivalent X-SAMPA symbol is L.-Features:Features of the palatal lateral... |
157 | |
U+028F | ʏ | Latin Letter Small Capital Y | Near-close near-front rounded vowel | 320 | |
U+0290 | ʐ | Latin Small Letter Z with Retroflex Hook | Voiced retroflex fricative | 137 | |
U+0291 | ʑ | Latin Small Letter Z with Curl | Voiced alveolo-palatal fricative | 183 | |
U+0292 | ʒ | Latin Small Letter Ezh | Voiced postalveolar fricative Voiced postalveolar fricative The voiced palato-alveolar fricative or voiced domed postalveolar fricative is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is , and the equivalent X-SAMPA symbol is Z. An alternative symbol used in some... |
135 | |
U+0293 | ʓ | Latin Small Letter Ezh with Curl | Voiced alveolo-palatal fricative (obsolete) | 205 | |
U+0294 | ʔ | Latin Letter Glottal Stop | Glottal stop Glottal stop The glottal stop, or more fully, the voiceless glottal plosive, is a type of consonantal sound used in many spoken languages. In English, the feature is represented, for example, by the hyphen in uh-oh! and by the apostrophe or [[ʻokina]] in Hawaii among those using a preservative pronunciation of... |
113 | |
U+0295 | ʕ | Latin Letter Pharyngeal Voiced Fricative | Voiced pharyngeal fricative Voiced pharyngeal fricative The voiced pharyngeal approximant or fricative is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents it is , and the equivalent X-SAMPA symbol is ?\.... |
145 | |
U+0296 | ʖ | Latin Letter Inverted Glottal Stop | Alveolar lateral click (obsolete) | 203 | |
U+0297 | ʗ | Latin Letter Stretched C | Postalveolar click Postalveolar click The alveolar or postalveolar clicks are a family of click consonants found only in Africa and in the Damin ritual jargon of Australia.The symbol in the International Phonetic Alphabet that represents the place of articulation of these sounds is... (obsolete) |
202 | |
U+0298 | ʘ | Latin Letter Bilabial Click | Bilabial click Bilabial click The bilabial clicks are a family of click consonants that sound something like a smack of the lips. They are found as phonemes only in the small Tuu language family, in the language of Botswana, and in the extinct Damin ritual jargon of Australia.... |
176 | |
U+0299 | ʙ | Latin Letter Small Capital B | Bilabial trill Bilabial trill -External links:*... |
121 | |
U+029A | ʚ | Latin Small Letter Closed Open E | A mistake for [œ] | 396 | |
U+029B | ʛ | Latin Letter Small Capital G with Hook | Voiced uvular implosive Voiced uvular implosive The voiced uvular implosive is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is , a small capital letter G with a rightward pointing hook extending from the upper right of the letter.-Occurrence:-Fun Fact:The... |
168 | |
U+029C | ʜ | Latin Letter Small Capital H | Voiceless epiglottal fricative | 172 | |
U+029D | ʝ | Latin Small Letter J with Crossed Tail | Voiced palatal fricative | 139 | |
U+029E | ʞ | Latin Small Letter Turned K | Velar click (obsolete) | 291 | |
U+029F | ʟ | Latin Letter Small Capital L | Velar lateral approximant | 158 | |
U+02A0 | ʠ | Latin Small Letter Q with Hook | "Voiceless" uvular implosive (obsolete) | 167 | |
U+02A1 | ʡ | Latin Letter Glottal Stop with Stroke | Epiglottal plosive Epiglottal plosive The epiglottal plosive is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is .-Features:Features of the epiglottal plosive:... |
173 | |
U+02A2 | ʢ | Latin Letter Reversed Glottal Stop with Stroke | Voiced epiglottal fricative | 174 | |
U+02A3 | ʣ | Latin Small Letter DZ Digraph | Voiced alveolar affricate Voiced alveolar affricate The voiced alveolar affricate is a type of consonantal sound, used in some spoken languages. The sound is transcribed in the International Phonetic Alphabet with ⟨⟩ or ⟨⟩ , and the equivalent X-SAMPA representation is ⟨dz⟩.-Features:... (obsolete) |
212 | |
U+02A4 | ʤ | Latin Small Letter Dezh Digraph | Voiced postalveolar affricate Voiced postalveolar affricate The voiced palato-alveolar affricate, also described as voiced domed postalveolar affricate, is a type of consonantal sound, used in some spoken languages. The sound is transcribed in the International Phonetic Alphabet with ⟨⟩ , and the equivalent X-SAMPA representation is ⟨dZ⟩... (obsolete) |
214 | |
U+02A5 | ʥ | Latin Small Letter DZ Digraph with Curl | Voiced alveolo-palatal affricate (obsolete) | 216 | |
U+02A6 | ʦ | Latin Small Letter TS Digraph | Voiceless alveolar affricate Voiceless alveolar affricate The voiceless alveolar affricate is a type of consonantal sound, used in some spoken languages. The sound is transcribed in the International Phonetic Alphabet with ⟨⟩ or ⟨⟩ . The voiceless alveolar affricate occurs in such languages as German, Cantonese, Italian, Russian, Japanese and Mandarin... (obsolete) |
211 | |
U+02A7 | ʧ | Latin Small Letter Tesh Digraph | Voiceless postalveolar affricate Voiceless postalveolar affricate The voiceless palato-alveolar affricate or domed postalveolar affricate is a type of consonantal sound used in some spoken languages. The sound is transcribed in the International Phonetic Alphabet with ⟨⟩ or ⟨⟩... (obsolete) |
213 | |
U+02A8 | ʨ | Latin Small Letter TC Digraph with Curl | Voiceless alveolo-palatal affricate (obsolete) | 215 | |
U+02A9 | ʩ | Latin Small Letter Feng Digraph | velopharyngeal fricative | 602 | |
U+02AA | ʪ | Latin Small Letter LS Digraph | voiceless lateral alveolar fricative | 603 | |
U+02AB | ʫ | Latin Small Letter LZ Digraph | voiced lateral alveolar fricative | 604 | |
U+02AC | ʬ | Latin Letter Bilabial Percussive | Bilabial percussive | ||
U+02AD | ʭ | Latin Letter Bidental Percussive | Bidental percussive | 601 | |
U+02AE | ʮ | Latin Small Letter Turned H with Fishhook | syllabic Syllabic consonant A syllabic consonant is a consonant which either forms a syllable on its own, or is the nucleus of a syllable. The diacritic for this in the International Phonetic Alphabet is the under-stroke, ⟨⟩... labialized voiced alveolar fricative Voiced alveolar fricative The voiced alveolar fricatives are consonantal sounds. The symbol in the International Phonetic Alphabet that represents these sounds depends on whether a sibilant or non-sibilant fricative is being described.... (Sinologist usage) |
||
U+02AF | ʯ | Latin Small Letter Turned H with Fishhook and Tail | ? (Sinologist usage) |
External links
- Unicode Consortium IPA Extensions
- Unicode-Wiki with images of all 98,884 graphical Unicode characters (German/English, full text searchFull text searchIn text retrieval, full text search refers to techniques for searching a single computer-stored document or a collection in a full text database...
) - John C. WellsJohn C. WellsJohn Christopher Wells is a British phonetician and Esperanto teacher. Wells is a professor emeritus at University College London, where until his retirement in 2006 he held the departmental chair in phonetics....
, The International Phonetic Alphabet in Unicode - http://www.linguiste.org/phonetics/ipa/chart/keyboard/Online input methodInput methodAn input method is an operating system component or program that allows any data, such as keyboard strokes or mouse movements, to be received as input. In this way users can enter characters and symbols not found on their input devices...
for phonetic symbols] - "IPA - Typewriter and Speaking machine", text output as PNG, PDF or GIFGIFThe Graphics Interchange Format is a bitmap image format that was introduced by CompuServe in 1987 and has since come into widespread usage on the World Wide Web due to its wide support and portability....
format.