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  2. Glyph Bitmap Distribution Format - Wikipedia

    en.wikipedia.org/wiki/Glyph_Bitmap_Distribution...

    Because 75 is approximately equal to 72, the number of pixels is the full width of a glyph (defined globally as 16 pixels) times ⁠ 500 / 1000 ⁠, or in other words the width of this glyph is 8 pixels. DWIDTH 8 0 declares the device width of a glyph. In this case, after the glyph is rendered, the start of the next glyph is offset 8 pixels on ...

  3. Typographic approximation - Wikipedia

    en.wikipedia.org/wiki/Typographic_approximation

    But high availability and robustness of ASCII character encoding prompted computer users to invent ASCII substitutes for various glyphs. The following ASCII characters are used to approximate certain characters. Note that there are many Latin letters that are homographic to letters of other scripts, however those Latin letters are not listed below.

  4. ASCII art - Wikipedia

    en.wikipedia.org/wiki/Ascii_art

    ASCII art of a fish. ASCII art is a graphic design technique that uses computers for presentation and consists of pictures pieced together from the 95 printable (from a total of 128) characters defined by the ASCII Standard from 1963 and ASCII compliant character sets with proprietary extended characters (beyond the 128 characters of standard 7-bit ASCII).

  5. Halfwidth and Fullwidth Forms (Unicode block) - Wikipedia

    en.wikipedia.org/wiki/Halfwidth_and_Fullwidth...

    U+FF00 does not correspond to a fullwidth ASCII 20 (space character), since that role is already fulfilled by U+3000 "ideographic space". Range U+FF61–FF9F encodes halfwidth forms of katakana and related punctuation in a transposition of A1 to DF in the JIS X 0201 encoding – see half-width kana .

  6. Unicode block - Wikipedia

    en.wikipedia.org/wiki/Unicode_block

    The size of a block may range from the minimum of 16 to a maximum of 65,536 code points. Every assigned code point has a glyph property called "Block", whose value is a character string naming the unique block that owns that point. [ 2 ]

  7. Box-drawing characters - Wikipedia

    en.wikipedia.org/wiki/Box-drawing_characters

    In version 13.0, Unicode was extended with another block containing many graphics characters, Symbols for Legacy Computing, which includes a few box-drawing characters and other symbols used by obsolete operating systems (mostly from the 1980s).

  8. Comparison of Unicode encodings - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_Unicode...

    [citation needed] All normal Unicode encodings use some form of fixed size code unit. Depending on the format and the code point to be encoded, one or more of these code units will represent a Unicode code point. To allow easy searching and truncation, a sequence must not occur within a longer sequence or across the boundary of two other sequences.

  9. Substitute character - Wikipedia

    en.wikipedia.org/wiki/Substitute_character

    Historically, under PDP-6 monitor, [2] RT-11, VMS, and TOPS-10, [3] and in early PC CP/M 1 and 2 operating systems (and derivatives like MP/M) it was necessary to explicitly mark the end of a file (EOF) because the native filesystem could not record the exact file size by itself; files were allocated in extents (records) of a fixed size, typically leaving some allocated but unused space at the ...