Windows XP

Windows XP
Name	Windows XP
Developer	Microsoft
Family	Windows NT
Source model	Closed source
Released to manufacturing	August 24, 2001
General availability	October 25, 2001
Latest release	Service Pack 3 (5.1.2600) / April 21, 2008
License	Microsoft Software Assurance
Kernel type	Hybrid kernel
Ui	Luna
Predecessor	Windows 2000, Windows Me
Successor	Windows Vista
Support status	Mainstream support ended April 14, 2009; extended support ended April 8, 2014

Windows XP. It is a major release of the Microsoft Windows operating system, built on the stable foundation of the Windows NT kernel and Windows 2000 codebase while incorporating the consumer-friendly features of Windows Me. Codenamed "Whistler" during development, it was aimed at unifying the previously separate business and consumer lines under a single, cohesive platform. Its launch marked a significant shift for both Microsoft and the personal computing industry, becoming one of the most successful and longest-used versions of Windows.

History and development

The project originated from the need to merge the business-oriented Windows NT line with the consumer-focused Windows 9x series, a goal that began with the development of Windows Neptune. Under the leadership of executives like Jim Allchin, the "Whistler" project consolidated the code from Windows 2000 and the user interface concepts from Windows Me. Key milestones included the release of several pre-release builds to testers, culminating in its announcement by Bill Gates at a COMDEX event. The final version was released to manufacturing in August 2001, with a public launch event in New York City featuring appearances by Jay Leno and music from Madonna.

Features

It introduced a radically redesigned visual interface called Luna, which featured a more colorful, task-based design with a distinctive green Start menu. Significant functional improvements included the Fast User Switching capability, the Remote Assistance feature for technical support, and enhanced multimedia tools like the Windows Media Player and Windows Movie Maker. System reliability was greatly improved over Windows 9x through features like System Restore, Driver signing, and better power management. The Windows Explorer was updated with a task pane, and it included native support for burning CD-R discs.

Editions

The initial release included two primary editions for most users: Windows XP Home Edition, designed for consumer use, and Windows XP Professional, which added features for business environments such as support for Active Directory and Remote Desktop Protocol. Later, specialized versions were released, including Windows XP Media Center Edition for home theater PCs, Windows XP Tablet PC Edition for pen-based computing, and the low-cost Windows XP Starter Edition for emerging markets. For embedded systems and point-of-sale terminals, Microsoft offered Windows XP Embedded and Windows Fundamentals for Legacy PCs.

System requirements

The minimum hardware specifications as stated by Microsoft were a 233 MHz Pentium-compatible processor, 64 MB of RAM, and 1.5 GB of available hard disk space. For optimal performance, a 300 MHz or faster processor and 128 MB of RAM were recommended. It required a Super VGA monitor and a CD-ROM or DVD-ROM drive for installation. These requirements represented a significant increase over those for Windows 98, but were manageable for most computers sold at the time from manufacturers like Dell, Hewlett-Packard, and IBM.

Security

Initially criticized for its security model, which relied heavily on users having Administrator privileges by default, it became a major target for malware like the Blaster and Sasser worms. Microsoft responded with the release of Windows XP Service Pack 2, a major update that introduced the Windows Security Center, a built-in Windows Firewall, and Data Execution Prevention. Subsequent updates, including Windows XP Service Pack 3, integrated security features from Windows Vista, such as improved Windows Defender and Network Access Protection.

Legacy and support lifecycle

It achieved unprecedented market penetration, dominating the personal computer landscape for over a decade and remaining in use long after the release of its successors, Windows Vista and Windows 7. Mainstream support from Microsoft ended in 2009, with extended support concluding in April 2014, despite protests from large organizations and governments. Its longevity cemented its status as a cultural icon, frequently referenced in media and remembered for its startup sound composed by Brian Eno. The end of support prompted major migrations for institutions like the United States Department of Defense and many National Health Service trusts in the United Kingdom.

Category:Microsoft Windows Category:2001 software