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ASCII reserves the first 32 code points (numbers 0–31 decimal) and the last one (number 127 decimal) for control characters. These are codes intended to control peripheral devices (such as printers ), or to provide meta-information about data streams, such as those stored on magnetic tape.
English: ASCII Table, monochrome, suitable for printing in landscape orientation on Letter or A4 sized paper. Printing instructions: Right-click and save the original SVG format file to your PC. Printing instructions: Right-click and save the original SVG format file to your PC.
A list of all the useful characters in the ASCII table. Goes up to 0x7F. Subject to change any time. Date: 2007: Source: Own work based on historical material and additional tables found at Wikipedia:Ascii. Author: ZZT32: Other versions: Derivative works of this file: ASCII-Table-wide.svg
In 1973, ECMA-35 and ISO 2022 [18] attempted to define a method so an 8-bit "extended ASCII" code could be converted to a corresponding 7-bit code, and vice versa. [19] In a 7-bit environment, the Shift Out would change the meaning of the 96 bytes 0x20 through 0x7F [a] [21] (i.e. all but the C0 control codes), to be the characters that an 8-bit environment would print if it used the same code ...
In 1963 the first ASCII code was released (X3.4-1963) by the ASCII committee (which contained at least one member of the Fieldata committee, W. F. Leubbert), which addressed most of the shortcomings of Fieldata, using a simpler seven-bit code. Many of the changes were subtle, such as collatable character sets within certain numeric ranges.
File:ASCII-Table.svg licensed with PD-self 2008-06-27T18:26:29Z AnonMoos 1000x812 (1576490 Bytes) fixing truncation of rows at bottom; 2007-04-14T00:04:17Z ZZT32 1052x744 (1576527 Bytes) A list of all the userful characters in the ASCII table. Goes up to 0x7F. Subject to change any time.
This page was last edited on 17 June 2020, at 15:27 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
Accordingly, character sets are very often indicated by their IBM code page number. In ASCII-compatible code pages, the lower 128 characters maintained their standard ASCII values, and different pages (or sets of characters) could be made available in the upper 128 characters.