1 (number)

: This article discusses the number one. For the year AD 1, see 1. For other uses of 1, see 1 (disambiguation)

In technology

One is the DVD region of the United States and Canada.

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In the DOS Shell and many Windows programs, the function key F1 calls up online help.

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On most phones, the 1 key is not associated with any letters the way other number keys are, but on the BlackBerry, 1 is also the key for the letters E and R.

Related Topics:
BlackBerry - E - R

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In the Rich Text Format specification, 1 is the language code for the Arabic language. All codes for dialects of Arabic are congruent to 1 mod 256.

Related Topics:
Rich Text Format - Arabic language

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1 is a punctuation mark indicating exclamation in "leetspeak".

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