Windows XP is an operating system produced by Microsoft as part of the Windows NT family of operating systems. It was the successor to both Windows 2000 for professional users and Windows Me for home users. It was released to manufacturing on August 24, 2001, and broadly released for retail sale on October 25, 2001.
Windows XP Tablet PC Edition utilizes the Ink object as a means of data input and storage. This is a data type created as part of the Windows XP Tablet PC Edition API that allows users to manipulate and process handwritten data, including recognition results and, in some cases, the pressure information for each part of the stroke.
Windows XP replaced Windows 2000 and Windows ME, which helped complete the unification of the NT and 9x branches of Windows. It was replaced by Windows Vista .  Windows XP was the second most used computer operating system in the world as late as April 2012. 
- Software compatibility
- Installation of programs
- Known limitations
- Service packs
Microsoft Windows XP Professional x64 Edition, released on April 25, 2005, is an edition of Windows XP for x86-64 personal computers. It is designed to use the expanded 64-bit memory address space provided by the x86-64 architecture. The primary benefit of moving to 64-bit is the increase in the maximum allocatable random-access memory. 32-bit editions of Windows XP are limited to a total of 4 gigabytes. Although the theoretical memory limit of a 64-bit computer is about 16 exabytes, Windows XP
Windows XP Professional x64 Edition uses a technology named Windows-on-Windows 64-bit, which permits the execution of 32-bit software. It was first used in Windows XP 64-bit Edition. Later, it was adopted for x64 editions of Windows XP and Windows Server 2003. Since the x86-64 architecture includes hardware-level support for 32-bit instructions, WoW64 simply switches the process between 32- and 64-bit modes. As a result, x86-64 architecture microprocessors suffer no performance loss when executi
By default, 64-bit Windows programs are installed onto their own folders under folder location "C:\\Program Files", while 32-bit Windows programs are installed onto their own folders under folder location "C:\\Program Files ".
There are some common issues that arise with Windows XP Professional x64 Edition. 1. Does not include NTVDM or Windows on Windows, so 16-bit Windows applications or native MS-DOS applications cannot run. Some old 32-bit programs use 16-bit installers which do not run; however, replacements for 16-bit installers such as ACME Setup versions 2.6, 3.0, 3.01, 3.1 and InstallShield 5.x are hardcoded into WoW64 to mitigate this issue. 2. Only 64-bit drivers are supported. 3. Any 32-bit Windows Explorer
The RTM version of Windows XP Professional x64 Edition was built from the Windows Server 2003 Service Pack 1 codebase. Because Windows XP Professional x64 Edition comes from a different codebase than 32-bit Windows XP, its service packs are also developed separately. For the same reason, Service Pack 2 for Windows XP x64 Edition, released on March 13, 2007, is not the same as Service Pack 2 for 32-bit versions of Windows XP. In fact, due to the earlier release date of the 32-bit version, many of
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Windows XP can be upgraded to from Windows 98, Windows Me, Windows NT 4.0 Workstation and Windows 2000 Professional. If performing an upgrade setup from Windows 9x family, Windows XP takes a backup of the old installation so that the user can uninstall Windows XP or if setup fails at any point, the system goes back to the previous OS. 
This allows Windows XP to prevent some buffer overflow exploits. On April 8, 2014, extended support of Windows XP ended. As this means that security vulnerabilities are no longer patched, the general advice given by both Microsoft and security specialists is to no longer use Windows XP. Antitrust concerns. In light of the United States v.
In versions of Windows after and including Windows 2000 SP3 and Windows XP, updates can be automatically downloaded and installed if the user selects to do so. As a result, Service Pack 2 for Windows XP, as well as Service Pack 1 for Windows Server 2003, were installed by users more quickly than it otherwise might have been.
Windows XP Professional. A 2001-ben kiadott, magyarul is megjelent Windows XP Professional a Windows 98SE-nél megbízhatóbb és biztonságosabb, a Windows 2000 alapjaira épülő rendszert adott a felhasználók kezébe, amely ötvözte a Windows 9x vonal felhasználó-központúságát a Windows 2000 stabilitásával és kiforrottságával, hiszen ez utóbbi a Windows NT továbbfejlesztése ...
Windows XP (codenamedWhistler between 2000-2001) is apersonal computeroperating systemproduced byMicrosoftas part of theWindows NTfamily of operating systems. The operating system was officially released to manufacturing on August 24, 2001, and generally released for retail sale on October 25, 2001. The name "XP" is short for "eXPerience", highlighting the enhanced user experience. Windows XP ...
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