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A file signature is data used to identify or verify the content of a file. Such signatures are also known as magic numbers or magic bytes.. Many file formats are not intended to be read as text.
TIFF files begin with either "II" or "MM" followed by 42 as a two-byte integer in little or big endian byte ordering. "II" is for Intel, which uses little endian byte ordering, so the magic number is 49 49 2A 00. "MM" is for Motorola, which uses big endian byte ordering, so the magic number is 4D 4D 00 2A.
In computing, a file signature is data used to identify or verify the contents of a file. In particular, it may refer to: File magic number: bytes within a file used to identify the format of the file; generally a short sequence of bytes (most are 2-4 bytes long) placed at the beginning of the file; see list of file signatures
"gzip" is often also used to refer to the gzip file format, which is: a 10-byte header, containing a magic number (1f 8b), the compression method (08 for DEFLATE), 1-byte of header flags, a 4-byte timestamp, compression flags and the operating system ID.
The Magic Bytes brand was created in 1987 and was subsequently used to publish almost all micro-partner's games. Magic Bytes debut took place in 1987 with the European release of Western Games and Clever & Smart. Most games were adapted for Amstrad CPC, Atari ST, Commodore C64 & Amiga, some for MSX, ZX Spectrum and later mostly for PC's.
Cabinet files have .cab filename extensions and are recognized by their first four bytes (also called their magic number) MSCF. Cabinet files were known originally as Diamond files. Cabinet files were known originally as Diamond files.
The byte-order mark (BOM) is a particular usage of the special Unicode character code, U+FEFF ZERO WIDTH NO-BREAK SPACE, whose appearance as a magic number at the start of a text stream can signal several things to a program reading the text: [1] the byte order, or endianness, of the text stream in the cases of 16-bit and 32-bit encodings;
The environment of an EXE program run by DOS is found in its Program Segment Prefix.. EXE files normally have separate segments for the code, data, and stack. Program execution begins at address 0 of the code segment, and the stack pointer register is set to whatever value is contained in the header information (thus if the header specifies a 512 byte stack, the stack pointer is set to 200h).