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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 comprehensive overview of the Unicode characters, covering 161 modern and historical scripts, as well as multiple symbol sets. Learn how to reference Unicode characters using numeric or entity codes, and see the control codes and special characters.
A file signature, also known as a magic number or magic byte, is a data used to identify or verify the content of a file. This web page lists various file signatures and their hexadecimal, ISO 8859-1, and extension codes.
Intel HEX is a text-based format that conveys binary data in hexadecimal form, used for programming microcontrollers and other devices. Learn about its history, structure, record types, checksum calculation and file extensions.
Learn how to use character entity references in XML and HTML documents, and see the list of predefined and custom entities for various scripts and symbols. Find out the differences between numeric and character entity references, and the formal public identifiers for HTML DTD entities subsets.
Learn about different methods and tools to insert Unicode characters on a computer keyboard, such as extended keyboard mapping, screen selection, decimal input and emoji keyboard. Unicode input is the insertion of a specific Unicode character on a computer by a user; it is a common way to input characters not directly supported by a physical keyboard.
Leet is a system of modified spellings used by hackers, crackers, and online gamers to express skill or accomplishment. It often uses character replacements, suffixes, and alternative meanings, and has many dialects and memes.