A family of instruction set architectures based on the Intel 8086 microprocessor, widely used in personal computers, servers, and embedded systems, known for its backward compatibility, performance, and widespread support in software and hardware ecosystems.

"Most modern PCs and laptops use x86-compatible processors."

A placeholder commonly used in mathematics, programming, and formal languages to represent an unknown value, variable, or element in a formula, equation, or expression.

"In the equation 'y = 2x + 3', 'x' represents the unknown variable."

Xorg (commonly referred to as simply X) is the most popular display server among Linux users.

"The Xorg command is usually not run directly. Instead, the X server is started with either a display manager or xinit."

An integrated development environment (IDE) developed by Apple for macOS and iOS app development, providing tools for coding, debugging, testing, and profiling, as well as interface design and asset management.

"The iOS developer used Xcode to build and deploy mobile apps for iPhone and iPad."

A markup language that defines a set of rules for encoding documents in a format that is both human-readable and machine-readable.

"XML is widely used in the exchange of a wide variety of data on the web and elsewhere."

An extension of HTML that follows the rules of XML, designed to be more strict and clean than traditional HTML.

"XHTML was developed by the World Wide Web Consortium (W3C) to help web developers create more structured and interoperable web pages."

A humorous term used to describe acronyms, initialisms, or abbreviations that consist of three letters, often encountered in technical fields like computing, engineering, and telecommunications, sometimes used sarcastically to poke fun at the proliferation of jargon and terminology.

"The software engineer encountered yet another XTLA while reading the documentation."