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  2. Null character - Wikipedia

    en.wikipedia.org/wiki/Null_character

    The ability to represent a null character does not always mean the resulting string will be correctly interpreted, as many programs will consider the null to be the end of the string. Thus the ability to type it (in case of unchecked user input) creates a vulnerability known as null byte injection and can lead to security exploits. [10]

  3. ANSI escape code - Wikipedia

    en.wikipedia.org/wiki/ANSI_escape_code

    In addition to the '2' value after 48 to specify a Red-Green-Blue format (and the '5' above for a 0-255 indexed color), there are alternatives of '0' for implementation-defined and '1' for transparent - neither of which have any further parameters; '3' specifies colors using a Cyan-Magenta-Yellow scheme, and '4' for a Cyan-Magenta-Yellow-Black ...

  4. Integer overflow - Wikipedia

    en.wikipedia.org/wiki/Integer_overflow

    Integer overflow can be demonstrated through an odometer overflowing, a mechanical version of the phenomenon. All digits are set to the maximum 9 and the next increment of the white digit causes a cascade of carry-over additions setting all digits to 0, but there is no higher digit (1,000,000s digit) to change to a 1, so the counter resets to zero.

  5. Code page - Wikipedia

    en.wikipedia.org/wiki/Code_page

    1070 – USA / Canada Version 0 (Code page 37 Version 0) 1071 – Germany F.R. / Austria (Code page 273 Version 0) 1072 – Belgium (Code page 274 Version 0) 1073 – Brazil (Code page 275 Version 0) 1074 – Denmark, Norway (Code page 277 Version 0) 1075 – Finland, Sweden (Code page 278 Version 0) 1076 – Italy (Code page 280 Version 0)

  6. Binary-to-text encoding - Wikipedia

    en.wikipedia.org/wiki/Binary-to-text_encoding

    The best-known is the string "From " (including trailing space) at the beginning of a line, used to separate mail messages in the mbox file format. By using a binary-to-text encoding on messages that are already plain text, then decoding on the other end, one can make such systems appear to be completely transparent. This is sometimes referred ...

  7. Double-precision floating-point format - Wikipedia

    en.wikipedia.org/wiki/Double-precision_floating...

    00000000000 2 =000 16 is used to represent a signed zero (if F = 0) and subnormal numbers (if F ≠ 0); and; 11111111111 2 =7ff 16 is used to represent ∞ (if F = 0) and NaNs (if F ≠ 0), where F is the fractional part of the significand. All bit patterns are valid encoding. Except for the above exceptions, the entire double-precision number ...

  8. Modbus - Wikipedia

    en.wikipedia.org/wiki/Modbus

    Address, Function, Data, and LRC are ASCII hexadecimal encoded values, whereby 8-bit values (0255) are encoded as two human-readable ASCII characters from the ranges 0–9 and A–F. For example, a value of 122 (7A 16 ) is encoded as two ASCII characters, "7" and "A", and transmitted as two bytes, 55 (37 16 , ASCII value for "7") and 65 (41 ...

  9. List of Unicode characters - Wikipedia

    en.wikipedia.org/wiki/List_of_Unicode_characters

    As of Unicode version 16.0, there are 155,063 characters with code points, covering 168 modern and historical scripts, as well as multiple symbol sets.This article includes the 1,062 characters in the Multilingual European Character Set 2 subset, and some additional related characters.