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  3. 3. Microsoft Windows is a series of software operating systems andgraphical user interfaces produced by Microsoft. Microsoft firstintroduced an operating environment named Windows inNovember 1985 as an add-on to MS-DOS in response to thegrowing interest in graphical user interfaces (GUIs).[2] MicrosoftWindows came to dominate the worlds personal computermarket, overtaking Mac OS, which had been introducedpreviously. As of October 2009, Windows had approximately 91%of the market share of the client operating systems for usageon the Internet.[3][4][5] The most recent client version ofWindows is Windows 7; the most recent server version isWindows Server 2008 R2; the most recent mobile OS version isWindows Mobile 6.5
  4. 4. VERSIONS 1.1 Early versions 1.2 Windows 3.0 and 3.11.3 Windows 95, 98, and Me 1.4 Windows NT family 1.4.1 64-bit operating systems 1.5 Windows CE 1.6 Future
  6. 6. Windows 1.0 did not allow overlapping windows, dueto Apple Computer owning this feature Instead allwindows were tiled. Only dialog boxes could appearover other windows.Windows 2.0 was released in October 1987 andfeatured several improvements to the user interfaceand memory management.[6] Windows 2.0 allowedapplication windows to overlap each other and alsointroduced more sophisticated keyboard-shortcuts. Itcould also make use of expanded memory.Windows 2.1 was released in two different flavors:Windows/386 employed the 386 virtual 8086 mode tomultitask several DOS programs, and the pagedmemory model to emulate expanded memory usingavailable extended memory. Windows/286 (which,despite its name, would run on the 8086) still ran inreal mode, but could make use of the high
  7. 7. Windows 3.0 and 3.1
  8. 8. Windows 3.0 (1990) and Windows 3.1(1992) improved the design, mostlybecause of virtual memory and loadablevirtual device drivers (VxDs) whichallowed them to share arbitrary devicesbetween multitasked DOS windows.[citation needed] Also, Windowsapplications could now run in protectedmode (when Windows was running inStandard or 386 Enhanced Mode), whichgave them access to several megabytesof memory and removed the obligationto participate in the software virtualmemory scheme
  9. 9. Windows 95, 98, and Me
  10. 10. Windows 95 was released in August 1995,featuring a new user interface, support forlong file names of up to 255 characters, andthe ability to automatically detect andconfigure installed hardware (plug andplay). It could natively run 32-bitapplications, and featured severaltechnological improvements that increasedits stability over Windows 3.1. There wereseveral OEM Service Releases (OSR) ofWindows 95, each of which was roughlyequivalent to a service pack.Microsofts next release was Windows 98 inJune 1998. Microsoft released a secondversion of Windows 98 in May 1999, namedWindows 98 Second Edition (often shortenedto Windows 98 SE).
  11. 11. Windows NT familyThe NT family of Windows systemswas fashioned and marketed forhigher reliability business use. Thefirst release was NT 3.1(1993), numbered "3.1" to matchthe consumer Windowsversion, which was followed by NT3.5 (1994), NT 3.51 (1995), NT 4.0(1996), and Windows 2000 (2000).2000 is the last NT-based Windowsrelease which does not includeMicrosoft Product Activation. NT 4.0was the first in this line toimplement the "Windows 95" userinterface (and the first to includeWindows 95’s built-in 32-bitruntimes).
  12. 12. WINDOW VISTA
  13. 13. Windows Vista is an operating systemexpressed in several variations developedby Microsoft for use on personalcomputers, including home and businessdesktops, laptops, tablet PCs, and mediacenter PCs. Prior to its announcement onJuly 22, 2005, Windows Vista was known byits codename "Longhorn."[4] Developmentwas completed on November 8, 2006; overthe following three months it was releasedin stages to computer hardware andsoftware manufacturers, businesscustomers, and retail channels. On January30, 2007, it was released worldwide,[5] andwas made available for purchase anddownload from Microsofts website.[6] Therelease of Windows Vista came more thanfive years after the introduction of itspredecessor, Windows XP, the longest timespan between successive releases ofMicrosoft Windows desktop operatingsystems. It was succeeded by Windows 7which was released to manufacturing onJuly 22, 2009, and for the general public onOctober 22, 2009.
  14. 14. WINDOW7 Windows 7 is a version of Microsoft Windows, a series of operating systems produced by Microsoftfor use on personal computers, including home and business desktops, laptops, netbooks, tablet PCs, and media center PCs.[4] Windows 7 was released to manufacturing on July 22, 2009,[5] and reached general retail availability on October 22, 2009,[6] less than three years after the release of its predecessor, Windows Vista. Windows 7s server counterpart, Windows Server 2008 R2, was released at the same time. Windows 7 will be succeeded by Windows 8, which has no release date as of yet.
  15. 15. ADVANCEMENTS OF OPERATING SYSTEM Some of the most popular andfunctional types of window treatmentson the market today are window shades (such as cellular shades, sheer shades and roller shades) and blinds (likebamboo blinds, vertical blinds and mini blinds). These versatile window treatments allow you to regulate theamount of light that enters any room in a variety of ways – by adjusting theslats or raising the shade up and down. Window treatments can also help prevent fabrics and rugs from being faded by ultraviolet rays. Certainly, many improvements havebeen made in the quality and design of window treatments in recent years.
  16. 16. Let’s take a brief look at some of theadvancements in today’s window treatment options that can add spark, color and texture to any room and serve as a reflection of your personal style.Draperies now come with a wide variety of options in rod styles including tab tops, tie tops, many types of pleats, grommets, rod pockets (large or small), flouncy tops, or plain rings. Valances can begathered, pleated, shirred, swagged, bundled, formal, casual, scalloped, lace, or flat to create your own unique style. Fabric Shades are available in flat Roman style, balloon, Austrian, bottomarched, pleated, and flat panels and can be made of sheer or coordinating fabrics.Metal Mini Blinds offer advancements in slat weightand size, specialty finishes, privacy options, header choices, cloth tapes, and hundreds of colors.