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Hexspeak is a form of variant English spelling using the hexadecimal digits 0123456789ABCDEF. It is used by programmers as memorable magic numbers to mark memory or data, and some words can be spelled with letters or numbers.
Hexadecimal is a positional numeral system that uses sixteen symbols, usually "0"–"9" and "A"–"F", to represent numbers. It is widely used in computing and mathematics to represent binary-coded values or large decimal numbers.
A file signature, also known as a magic number or magic byte, is data used to identify or verify the content of a file. This web page lists the hexadecimal and ASCII values of various file signatures, along with their ISO 8859-1 encoding and description.
A binary number is a number expressed in the base-2 numeral system, using only two symbols: 0 and 1. Learn about the origins and applications of binary numbers in various cultures and fields, from ancient Egypt and China to modern computers and cryptography.
ASCII is a character encoding standard for electronic communication that represents text in computers, telecommunications equipment, and other devices. It has 128 code points, of which only 95 are printable characters, and it was developed in part from telegraph code and influenced by Unicode.
A hex dump is a way of displaying computer data in hexadecimal format, often used for debugging, reverse engineering or forensics. Learn how to read and create hex dumps, and see examples of different formats and options.
A hexadecimal clock-face (using the Florence meridian) Hexadecimal time is the representation of the time of day as a hexadecimal number in the interval [0, 1). The day is divided into 10 16 (16 10) hexadecimal hours, each hour into 100 16 (256 10) hexadecimal minutes, and each minute into 10 16 (16 10) hexadecimal seconds.
Learn how to represent signed integers using two's complement, a common method on computers and fixed point binary values. See the procedure, theory, examples and tables of two's complement for different bit lengths.