ASCII: Difference between revisions

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Undid revision 1223330621 by Red9828 (talk) RV good faith but no. ASCII was only 7 bits. Storage was a different issue. Systems with 36 but words stored five characters per word. Some systems had a parity bit.
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m →‎Control characters: formatting fix
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===<span class="anchor" id="ASCII control characters"></span>Control characters===
[[File:US ASCII Control Character Symbols.png|thumb|right|Early symbols assigned to the 32 control characters, space and delete characters. ([[ISO 2047]], MIL-STD-188-100, 1972)]]
{{Main|Control characterscharacter}}
ASCII reserves the first 32 [[code point]]s (numbers 0–31 decimal) and the last one (number 127 decimal) for [[control character]]s. These are codes intended to control [[peripheral device]]s (such as [[computer printer|printers]]), or to provide [[Metadata|meta-information]] about data streams, such as those stored on magnetic tape. Despite their name, these code points do not represent printable characters (i.e. they are not characters at all, but signals). For debugging purposes, "placeholder" symbols (such as those given in [[ISO 2047]] and its predecessors) are assigned to them.