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I

I is the 9th letter in the Latin alphabet.

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History

The letter I derived from the Greek iota (Ι, ι). It stood for the vowel /i/, the same as in the Old Italic alphabet. In Latin (as in Modern Greek) /j/ (as English Y in YOKE) was added. In Semitic, /j/ was the usual sound value of Jd (probably originally a pictogram for an arm with hand), /i/ only in foreign words.

In English, I represents different sounds, among them a diphthong that developed from /i:/ as well as short, open /I/ as in BILL. The dot over the lowercase 'i' is called a tittle. In the Turkish alphabet, dotted and dotless I are considered separate letters and both have uppercase (I, İ) and lowercase (ı, i) forms.

Alternate representations

India represents the letter I in the NATO phonetic alphabet.

In international Morse code the letter I is DitDit:

In Braille the letter I is represented as (in Unicode), the dot pattern,

.X
X.
..

Computing

In Unicode the capital I is codepoint U+0049 and the lowercase i is U+0069.

The ASCII code for capital I is 73 and for lowercase i is 105; or in binary 01001001 and 01101001, correspondingly.

The EBCDIC code for capital I is 201 and for lowercase i is 137.

The numeric character references in HTML and XML are "I" and "i" for upper and lower case respectively.

Meanings for I

See also

, , , , Ĭ, İ

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