ASCII 38 — &

The ampersand originated as a ligature of the Latin word 'et' (meaning 'and') and has been part of written typography since the first century AD. In HTML, '&' introduces character entity references like & and <, which means the literal ampersand character itself must be escaped as & in markup to avoid parsing errors. In C and C++, '&' serves as the address-of operator and forms the logical AND operator '&&'. In URLs, '&' separates query string parameters. In shell scripting, trailing '&' backgrounds processes.

Symbol characters in ASCII include mathematical operators, logical notation, and special-purpose marks that serve critical roles across programming, mathematics, and digital communication. Symbols are heavily context-dependent — the same character may act as an arithmetic operator in one language, a regex metacharacter in another, and a shell configuration flag in a third context. This contextual polyvalence makes symbols among the most functionally overloaded characters in computing, requiring careful attention to their meaning in each domain.

In the ASCII encoding table, Ampersand is assigned code point 38 in decimal (0x26 hexadecimal, 046 octal, 00100110 binary). The 7-bit ASCII standard, first published in 1963 by the American Standards Association, defines exactly 128 characters that remain the foundation of text encoding systems worldwide. UTF-8, the dominant encoding on the modern web, is fully backward compatible with ASCII — every ASCII character is encoded as the identical single byte in UTF-8, guaranteeing that Ampersand works reliably across all operating systems, programming languages, and internet protocols.