Xbox Series X (Refurbished) – Microsoft

Microsoft Corporation is an American multinational technology conglomerate headquartered in Redmond, Washington. Founded in 1975, the company became highly influential in the rise of personal computers through software like Windows, and the company has since expanded to Internet services, cloud computing, video gaming and other fields. Microsoft is the largest software maker, one of the most valuable public U.S. companies, and one of the most valuable brands globally.

Microsoft was founded by Bill Gates and Paul Allen to develop and sell BASIC interpreters for the Altair 8800. It rose to dominate the personal computer operating system market with MS-DOS in the mid-1980s, followed by Windows. The company's 1986 initial public offering (IPO) and subsequent rise in its share price created three billionaires and an estimated 12,000 millionaires among Microsoft employees. Since the 1990s, it has increasingly diversified from the operating system market. Steve Ballmer replaced Gates as CEO in 2000 which would see the then-largest of Microsoft's corporate acquisitions in Skype Technologies in 2011, and an increased focus on hardware that led to its first in-house PC line, the Surface, in 2012, and the formation of Microsoft Mobile through Nokia. Since Satya Nadella took over as CEO in 2014, the company has changed focus towards cloud computing, as well as its large acquisition of LinkedIn for $26.2 billion in 2016. Under Nadella's direction, the company has also expanded its video gaming business to support the Xbox brand, establishing the Microsoft Gaming division in 2022, which is currently the third-largest gaming company in the world by revenue, following the 2023 acquisition of Activision Blizzard for $68.7 billion.

Microsoft has been market-dominant in the IBM PC–compatible operating system market and the office software suite market since the 1990s. Its best-known software products are the Windows line of operating systems, the Microsoft 365 suite of productivity applications, the Azure cloud computing platform, and the Edge web browser. Its flagship hardware products are the Xbox video game consoles and the Microsoft Surface lineup of touchscreen personal computers. Other consumer and enterprise software it produces include Internet search with Bing; digital services through MSN; mixed reality through HoloLens; cloud computing with Azure; and software development through Visual Studio.

Microsoft is considered one of the Big Five American information technology companies, alongside Alphabet, Amazon, Apple, and Meta. In April 2019, Microsoft reached a trillion-dollar market cap, becoming the third public U.S. company to be valued at over $1 trillion. It has been criticized for its monopolistic practices, and the company's software has been criticized for problems with ease of use, robustness, and security.

X, or x, is the twenty-fourth letter of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ex (pronounced ), plural exes.

Xbox is a video gaming brand that consists of five home video game consoles, as well as applications (games), streaming service Xbox Cloud Gaming, and online services such as the Xbox network and Xbox Game Pass. The brand is produced by Microsoft Gaming, a division of Microsoft.

The brand was first introduced in the United States in November 2001, with the launch of the original Xbox console. The Xbox branding was formerly, from 2012 to 2015, used as Microsoft's digital media entertainment brand replacing Zune. In 2022, Microsoft expanded its gaming business and reorganized Xbox to become part of its newly formed Microsoft Gaming division. Under Microsoft Gaming, Xbox's first-party publishers are Xbox Game Studios, ZeniMax Media (Bethesda Softworks), and Activision Blizzard (Activision, Blizzard Entertainment, and King), who own numerous studios and successful franchises.

The original device was the first video game console offered by an American company after the Atari Jaguar stopped sales in 1996. It reached over 24 million units sold by May 2006. Microsoft's second console, the Xbox 360, was released in 2005 and has sold 86 million units as of October 2021. The third console, the Xbox One, was released in November 2013 and has sold 58 million units. The fourth line of Xbox consoles, the Xbox Series X and Series S, were released in November 2020. The head of Xbox is Phil Spencer, who succeeded former head Marc Whitten in late March 2014.