@ Common: at sign; at; strudel. Rare: each; vortex; whorl; [whirlpool];
cyclone; snail; ape; cat; rose; cabbage; .
V Rare: [book].
[ ] Common: l/r square bracket; l/r bracket; ;
bracket/unbracket. Rare: square/unsquare; [U turn/U turn back].
\ Common: backslash; escape (from C/UNIX); reverse slash; slosh;
backslant; backwhack. Rare: bash; ; reversed virgule;
[backslat].
^ Common: hat; control; uparrow; caret; . Rare: chevron;
[shark (or shark-fin)]; to the (`to the power of'); fang; pointer (in
Pascal).
_ Common: ; underscore; underbar; under. Rare: score;
backarrow; skid; [flatworm].
` Common: backquote; left quote; left single quote; open quote;
accent>; grave. Rare: backprime; [backspark]; unapostrophe; birk;
blugle; back tick; back glitch; push; ;
quasiquote.
{ } Common: o/c brace; l/r brace; l/r squiggly; l/r squiggly
bracket/brace; l/r curly bracket/brace; . Rare:
brace/unbrace; curly/uncurly; leftit/rytit; l/r squirrelly;
[embrace/bracelet].
| Common: bar; or; or-bar; v-bar; pipe; vertical bar. Rare:
line>; gozinta; thru; pipesinta (last three from UNIX); [spike].
~ Common: ; squiggle; {twiddle}; not. Rare: approx; wiggle;
swung dash; enyay; [sqiggle (sic)].
The pronunciation of `#' as `pound' is common in the U.S. but a bad
idea; {{Commonwealth Hackish}} has its own, rather more apposite
use of `pound sign' (confusingly, on British keyboards the pound
graphic happens to replace `#'; thus Britishers sometimes call `#' on a
U.S.-ASCII keyboard `pound', compounding the American error). The
U.S. usage derives from an old-fashioned commercial practice of using
a `#' suffix to tag pound weights on bills of lading. The character is
usually pronounced `hash' outside the U.S. There are more culture wars
over the correct pronunciation of this character than any other, which
has led to the {ha ha only serious} suggestion that it be pronounced
`shibboleth' (see Judges 12.6 in a Christian Bible).
The `uparrow' name for circumflex and `leftarrow' name for underline
are historical relics from archaic ASCII (the 1963 version), which had
these graphics in those character positions rather than the modern
punctuation characters.
The `swung dash' or `approximation' sign is not quite the same as tilde
in typeset material but the ASCII tilde serves for both (compare {angle
brackets}).
Some other common usages cause odd overlaps. The `#', `$', `>', and
`&' characters, for example, are all pronounced "hex" in different
communities because various assemblers use them as a prefix tag for
hexadecimal constants (in particular, `#' in many
assembler-programming cultures, `$' in the 6502 world, `>' at Texas
Instruments, and `&' on the BBC Micro, Sinclair, and some Z80
machines). See also {splat}.
The inability of ASCII text to correctly represent any of the world's
other major languages makes the designers' choice of 7 bits look more
and more like a serious {misfeature} as the use of international
networks continues to increase (see {software rot}). Hardware and
software from the U.S. still tends to embody the assumption that ASCII
is the universal character set and that characters have 7 bits; this is a a
major irritant to people who want to use a character set suited to their
own languages. Perversely, though, efforts to solve this problem by
proliferating `national' character sets produce an evolutionary pressure
to use a *smaller* subset common to all those in use.
:ASCII art: /n./ The fine art of drawing diagrams using the ASCII
character set (mainly `|', `-', `/', `\', and `+'). Also known as `character
graphics' or `ASCII graphics'; see also {boxology}. Here is a serious
example:
o----)||(--+--|<----+ +---------o + D O L )||( | | | C U A I )||( +-->|-+ |
+-\/\/-+--o - T C N )||( | | | | P E )||( +-->|-+--)---+--)|--+-o U )||( | | | GND
T o----)||(--+--|<----+----------+
A power supply consisting of a full wave rectifier circuit feeding a
capacitor input filter circuit
And here are some
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