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ASCII
!!!ASCII
NAME
DESCRIPTION
HISTORY
SEE ALSO
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!!NAME


ascii - the ASCII character set encoded in octal, decimal, and hexadecimal
!!DESCRIPTION


ASCII is the American Standard Code for Information
Interchange. It is a 7-bit code. Many 8-bit codes (such as
ISO 8859-1, the Linux default character set) contain ASCII
as their lower half. The international counterpart of ASCII
is known as ISO 646.


The following table contains the 128 ASCII
characters.


C program 'X' escapes are noted.
!!HISTORY


An __ascii__ manual page appeared in Version 7 AT__


On older terminals, the underscore code is displayed as a
left arrow, called backarrow, the caret is displayed as an
up-arrow and the vertical bar has a hole in the
middle.


Uppercase and lowercase characters differ by just one bit
and the ASCII character 2 differs from the double quote by
just one bit, too. That made it much easier to encode
characters mechanically or with a non-microcontroller-based
electronic keyboard and that pairing was found on old
teletypes.


The ASCII standard was published by the United States of
America Standards Institute (USASI) in 1968.
!!SEE ALSO


iso_8859_1(7), __iso_8859_15__(7),
iso_8859_7(7)
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