WINDOWS 1.0
Microsoft released the first version of Windows wayback in 1985. It marked a major breakthrough as it allowed users to switch from character based (CUI)/non-graphical MS-DOS to the GUI based operating system. The product incorporated a set of desktop applications, including the MS-DOS file management program and value additions such as a calendar, card file, notepad, calculator, clock andtelecommunications programs. It allowed users to work with multiple applications at the same time (multitasking).
WINDOWS 3.0
Microsoft released this version of Windows in 1990.Some of its main features were:
• 32 bit operating system with support for advanced graphics
• Inclusion of Program Manager, File Manager and Print Manager
• A completely rewritten application development withnew capabilities and native support for applications running in extended memoryand fully pre-emptive MS-DOS multitasking
• Inclusion of Windows software development kit (SDK), which facilitated software developers focus more on writing applications and less on writing device drivers
• Improved Windows icons
WINDOWS NT 3.1/3.11
Microsoft released this version of Windows on July 27, 1993. This OS marked an important milestone for Microsoft. Some of its mainfeatures were:
• It was the first Windows operating system to merge support for high-end client/server business applications.
• It contains new built-in features for security, operating system power, performance, desktop scalability and reliability.
• It included support for multiprocessor (more than one CPU) architecture.
• Windows NT was geared towards business users and had a rich Application Programming Interface (API), which made it easier to run high-end engineering and scientific applications.
WINDOWS 95
Microsoft released this version of Windows in 1995.Some of its main features were:
• Provided 32 bit operating system with built-in Internet-support
• Facilitated easy installation of hardware peripherals and software applications through plug and- play capabilities
• Enhanced multimedia capabilities, more powerful features for mobile computing and integrated networking
WINDOWS 98
Microsoft released this version of Windows in 1998.It is often described as an operating system that ‘Works Better, Plays Better’.Some of its main features were:
• New features were added to enable easy access to Internet-related information.
• Multiple display support allowed using several Visual Display Units (VDU) simultaneously to augment the capacity of the desktop and to allowrunning of different programs on separate monitors.
• USB Support – the Universal Serial Bus made a computer easier to use with advanced plug and-play capabilities. It allowed supplementing devices to your computer without having to restart each time a device is added to the computer.
• Accessibility wizard made it easier for physically challenged people to operate a computer without installing any special software.
• An extensive and easy-to-use self-help system was provided.
WINDOWS 2000 PROFESSIONAL
Microsoft released this version of Windows in 2000.It was an upgrade to Windows NT4.0. It was designed with the aim to replace Windows 95, Windows 98 and Windows NT 4.0 on desktops and laptops. It added major improvement in reliability, easy usage, internet compatibility and support for mobile computing. It made hardware installation much easier by adding support to a wide variety of new Plug andPlay hardware, including advanced networking and wireless products, USB devices and infrared devices.
WINDOWS XP
Windows XP features user-friendly screens, simplified menus among other features. It was a major breakthrough for desktop operating systems. Two main versions of Windows XP were released, viz. Windows XP Home Edition and Windows XP Professional Edition. Features of Windows XP are:
Safe and easy personal computing: Windows XP makes personal computing easy and enjoyable. Along with unmatched dependability and security, Windows XP displays power, performance, a bright original appearance and abundant assistance tailored to one's requirement. World of Digital Media: Work at lengthusing digital media while at home, at work and on the Internet. Enjoy photography, music,videos, computer games and more.
• Connected Home and Office: Share files, photos, music, even a printer and Internet connection; all on a network that is private and secure.
• Best for Business: With Windows XP, you get the established reliability of Microsoft Windows 2000, enhanced for high-speed performance and even superior consistency.
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