Windows Vista is the name of the latest release of Microsoft Windows, a line of graphical operating systems used on personal computers, including home and business desktops, notebook computers, and media centers. Prior to its announcement on July 22, 2005, Vista was known by its codename Longhorn. On November 8, 2006, Windows Vista development was completed and is now in the release to manufacturing stage. Some editions were available to volume license customers, MSDN and TechNet subscribers through November 2006;[1] Microsoft has stated that the scheduled release date for worldwide availability is January 30, 2007.[2] These release dates come more than five years after the release of its predecessor, Windows XP, making it the longest time span between major releases of Windows.
According to Microsoft,[3] Windows Vista contains hundreds of new features, some of the most significant of which include an updated graphical user interface and visual style dubbed Windows Aero, improved searching features, new multimedia creation tools such as Windows DVD Maker, and completely redesigned networking, audio, print, and display sub-systems. Vista also aims to increase the level of communication between machines on a home network using peer-to-peer technology, making it easier to share files and digital media between computers and devices. For developers, Vista introduces version 3.0 of the .NET Framework, which aims to make it significantly easier for developers to write high-quality applications than with the traditional Windows API.
Microsoft's primary stated objective with Vista, however, has been to improve the state of security in the Windows operating system.[4] One of the most common criticisms of Windows XP and its predecessors has been their commonly exploited security vulnerabilities and overall susceptibility to malware, viruses and buffer overflows. In light of this, then Microsoft chairman Bill Gates announced in early 2002 a company-wide 'Trustworthy Computing initiative' which aims to incorporate security work into every aspect of software development at the company. Microsoft claimed that it prioritized improving the security of Windows XP and Windows Server 2003 above finishing Windows Vista, significantly delaying its completion.[5]
During the course of its development, Vista has been the target of a number of negative assessments by various groups. Criticism of Windows Vista has included protracted development time, more restrictive licensing terms, the inclusion of a number of new Digital Rights Management technologies aimed at restricting the copying of protected digital media, and the usability of new features such as User Account Control.
End-user features
- Windows Aero: a new hardware-based graphical user interface, named Windows Aero – an acronym (possibly a backronym) for Authentic, Energetic, Reflective, and Open. The new interface is intended to be cleaner and more aesthetically pleasing than previous Windows, including new transparencies, animations and eye candy.
- Windows Shell: The new Windows shell is significantly different from Windows XP, offering a new range of organization, navigation, and search capabilities. Windows Explorer's task pane has been removed, integrating the relevant task options into the toolbar. A "Favorite links" pane has been added, enabling one-click access to common directories. The address bar has been replaced with a breadcrumb navigation system. The Start menu has changed as well; it no longer uses ever-expanding boxes when navigating through Programs. Even the word "Start" itself has been removed in favor of a blue Windows Orb.
- Windows Search (also known as Instant Search or search as you type): significantly faster and more thorough search capabilities. Search boxes have been added to the Start menu, Windows Explorer, and several of the applications included with Vista. By default, Instant Search indexes only a small number of folders such as the start menu, the names of files opened, the Documents folder, and the user's e-mail.
- Windows Sidebar: A transparent panel anchored to the side of the screen where a user can place Desktop Gadgets, which are small applets designed for a specialized purpose (such as displaying the weather or sports scores). Gadgets can also be placed on other parts of the Desktop, if desired. The technology bears some resemblance to the older Active Channel and Active Desktop technologies introduced with Windows 95 OEM Service Release 2.5, but the gadgets technology is more versatile, and is not integrated with the Internet Explorer browser in the same way as Active Desktop.
- Windows Internet Explorer 7: new user interface, tabbed browsing, RSS, a search box, improved printing, Page Zoom, Quick Tabs (thumbnails of all open tabs), a number of new security protection features, and improved web standards support.[8]
- Windows Media Player 11, a major revamp of Microsoft's program for playing and organizing music and video. New features in this version include word wheeling (or "search as you type"), a completely new and highly graphical interface for the media library, photo display and organization, and the ability to share music libraries over a network with other Vista machines, Xbox 360 integration, and support for other Media Center Extenders.
- Backup and Restore Center: Includes a backup and restore application that gives users the ability to schedule periodic backups of files on their computer, as well as recovery from previous backups. Backups are incremental, storing only the changes each time, minimizing the disk usage. It also features CompletePC Backup which backs up an entire computer as an image onto a hard disk or DVD. CompletePC Backup can automatically recreate a machine setup onto new hardware or hard disk in case of any hardware failures.
- Windows Mail: A replacement for Outlook Express that includes a completely replaced mail store that improves stability, and enables real-time search. New Junk mail filtering.[9]
- Windows Calendar is a new calendar and task application.
- Windows Photo Gallery, a photo and movie library management application. WPG can import from digital cameras, tag and rate individual items, adjust colors and exposure, create and display slideshows (with pan and fade effects), and burn slideshows to DVD.
- Windows DVD Maker, a companion program to Windows Movie Maker, which provides the ability to create video DVDs based on a user's content.
- Windows Meeting Space is the replacement for NetMeeting. Users can share applications (or their entire Desktop) with other users on the local network, or over the Internet using peer-to-peer technology.
- Windows Media Center, which was previously exclusively bundled as a separate version of Windows XP, known as Windows XP Media Center Edition, will be incorporated into the Home Premium and Ultimate editions of Windows Vista.
- Games: Every game included with Windows has been rewritten to take advantage of Vista's new graphics capabilities. New games include Chess Titans, Mahjong Titans and Purble Place. The Games section will also hold links and information to all games on the user's computer. One piece of information that will be shown is the game's ESRB rating.
- Previous Versions automatically creates backup copies of files and folders, with daily frequency. Users can also create "shadow copies" by setting a System Protection Point using the System Protection tab in the System control panel. The user can be presented multiple versions of a file throughout a limited history and be allowed to restore, delete, or copy those versions. This feature is available only in the Business, Enterprise, and Ultimate editions of Windows Vista and is inherited from Windows Server 2003.[10]
- The Windows Mobility Center is a new control panel that centralizes the most relevant information related to mobile computing (e.g. brightness, sound, battery level / power scheme selection, wireless network, screen orientation, presentation settings, etc.).
- Windows Update: Software and security updates have been simplified, now operating solely via a control panel instead of as a web application. Mail's spam filter and Defender's definitions will also be automatically updated via Windows Update.
- Parental controls: Allows administrators to control which websites, programs, and games each standard user can use and install.
- Windows SideShow: Enables the auxiliary displays on newer laptops or on supported Windows Mobile devices. It is meant to be used to display Device gadgets while the computer is on or off.
- Speech recognition is fully integrated into Vista. It is an improved version of Microsoft Speech Recognition currently working under Office 2003, with a better interface, a rich and flexible set of commands, and an extensive command-and-control capability to activate the computer by voice. Unlike the Office 2003 version, which works only in Office and WordPad, it works for dictation in multiple applications. In addition, it currently supports several languages: English US and UK, Spanish, French, German, Chinese (Classical and Simplified), and Japanese. Switching between the languages is, however, still quite inconvenient though not impossible. The quality of recognition (accuracy in dictation) is very high, at least as good as Dragon NaturallySpeaking 9 ('high recognition' normally means no less than 98% accuracy). For comparative data and evaluations of Windows Vista Speech (WSR) see http://speech.even-zohar.com. For discussions, files and information see the Yahoo Microsoft Speech Group (http://tech.groups.yahoo.com/group/ms-speech).
- Many new fonts, including several designed especially for screen reading, and new high-quality Chinese (Yahei, JhengHei), Japanese (Meiryo) and Korean (Malgun) fonts. See Windows Vista typefaces. ClearType has also been enhanced and enabled by default.
- Touchscreen support will be included as part of Tablet PC, which will be incorporated as a standard component.[11]
- Problem Reports and Solutions, a new control panel which allows users to see previously sent problems and any solutions or additional information that is available.
- Improved audio controls allow the system-wide volume or volume of individual audio devices and even individual applications to be controlled separately.
- Full Symbolic links support has been made available for the first time to Windows users in Vista. [12]
- System Performance Assessment is a benchmark used by Windows Vista to regulate the system for optimum performance. Games can take advantage of this feature, reading the data produced by this benchmark in order to fine-tune the game details. The benchmark tests CPU, RAM, Graphics acceleration (2D and 3D) and disk access.[13]
- Enable advanced performance for Hard Disks - When the option is enabled all the data that gets written to the drive is first stored in the cache, and then later written to the disk
[edit] Core technologies
Windows Vista is intended to be a technology-based release, to provide a solid base to include advanced technologies, many of which will be related to how the system functions, and hence not readily visible to the user. An example of this is the complete restructuring of the architecture of the audio, print, display, and networking subsystems; while the results of this work will be clearly visible to software developers, end-users will only see what appear to be evolutionary changes in the user interface.
Vista includes technologies such as ReadyBoost and ReadyDrive which employ fast flash memory (located on USB drives and hybrid hard disk drives respectively) to improve system performance by caching commonly-used programs and data. This manifests itself in improved battery life on notebook computers as well, since a hybrid drive can be spun down when not in use. Another new technology called SuperFetch utilizes machine learning techniques to analyze usage patterns in order to allow Windows Vista to make intelligent decisions about what content should be present in system memory at any given time.
As part of the complete redesign of the networking architecture, IPv6 has been fully incorporated into the operating system, and a number of performance improvements have been introduced, such as TCP window scaling. Prior versions of Windows typically needed third-party wireless networking software to work properly; this is no longer the case with Vista, as it includes more comprehensive wireless networking support.
For graphics, Vista introduces a new Windows Display Driver Model, as well as major revision to Direct3D. The new driver model facilitates the new Desktop Window Manager, which provides the tearing-free desktop and special effects that are the cornerstones of Windows Aero. Direct3D 10, developed in conjunction with major display driver manufacturers, is a new architecture with more advanced shader support, and allows the graphics processing unit to render more complex scenes without assistance from the CPU. It features improved load balancing between CPU and GPU and also optimizes data transfer between them.[14]
At the core of the operating system, many improvements have been made to the memory manager, process scheduler, heap manager, and I/O scheduler. A Kernel Transaction Manager has been implemented that gives applications the ability to work with the file system and registry using atomic transaction operations.
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