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  2. Null character - Wikipedia

    en.wikipedia.org/wiki/Null_character

    In all modern character sets, the null character has a code point value of zero. In most encodings, this is translated to a single code unit with a zero value. For instance, in UTF-8 it is a single zero byte. However, in Modified UTF-8 the null character is encoded as two bytes : 0xC0,0x80. This allows the byte with the value of zero, which is ...

  3. Null byte - Wikipedia

    en.wikipedia.org/?title=Null_byte&redirect=no

    From Wikipedia, the free encyclopedia. Redirect page

  4. C string handling - Wikipedia

    en.wikipedia.org/wiki/C_string_handling

    The BSD documentation has been fixed to make this clear, but POSIX, Linux, and Windows documentation still uses "character" in many places where "byte" or "wchar_t" is the correct term. Functions for handling memory buffers can process sequences of bytes that include null-byte as part of the data.

  5. Bit - Wikipedia

    en.wikipedia.org/wiki/Bit

    Frequently, half, full, double and quadruple words consist of a number of bytes which is a low power of two. A string of four bits is usually a nibble . In information theory , one bit is the information entropy of a random binary variable that is 0 or 1 with equal probability, [ 3 ] or the information that is gained when the value of such a ...

  6. Timeline of binary prefixes - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_binary_prefixes

    The drive had 35 tracks and was single sided. The data sheet gives the unformatted capacity as 3125 bytes per track for a total of 109.4 K bytes (3125 × 35 = 109 375). When formatted with 256 byte sectors and 10 sectors per track the capacity is 89.6 K bytes (256 × 10 × 35 = 89 600). [69]

  7. Byte - Wikipedia

    en.wikipedia.org/wiki/Byte

    The byte is a unit of digital information that most commonly consists of eight bits.Historically, the byte was the number of bits used to encode a single character of text in a computer [1] [2] and for this reason it is the smallest addressable unit of memory in many computer architectures.

  8. AES implementations - Wikipedia

    en.wikipedia.org/wiki/AES_implementations

    The algorithm operates on plaintext blocks of 16 bytes. Encryption of shorter blocks is possible only by padding the source bytes, usually with null bytes . This can be accomplished via several methods, the simplest of which assumes that the final byte of the cipher identifies the number of null bytes of padding added.

  9. Null - Wikipedia

    en.wikipedia.org/wiki/Null

    Null (SQL) (or NULL), a special marker and keyword in SQL indicating that something has no value; Null character, the zero-valued ASCII character, also designated by NUL, often used as a terminator, separator or filler. This symbol has no visual representation. Null device, a virtual file that discards data written to it, on Unix systems /dev/null