Initial release October 26, 2012 [ info ]
Stable release 6.2 (Build 9200) (August 1, 2012 ) [ info ]
License Proprietary commercial software
Kernel type Hybrid
Update method Windows Update
Platform support IA-32 , x86-64 , and ARM [ 1 ]
Preceded by Windows 7
Start date: October 30, 2012 [ 2 ]
Mainstream support: Until January 9, 2018
Extended support: Until January 10, 2023
Windows 8 is the latest and the current operating system developed by microsoft in its windows series. And it's the first operating system which is compatible both with pc, laptop , tablet and smartphones
Its user interface is totally new and very refreshing in the series of windows
It comes with those live tiles which will keep changing to give you live updates of your facebook, twitter and weather updates etc.
Editions of Windows 8
Windows 8 is available in four editions; the two main editions available for retail sale are simply Windows 8 (which is intended formainstream consumers) and Windows 8 Pro (which contains additional features aimed towards power users and professional environments). Windows 8 Enterprise contains additional features aimed towards business environments, and is only available through volume licensing
System requirements for Windows 8 (pc)
Architecture IA-32 (32-bit) x86-64 (64-bit)
Processor 1 GHz (with PAE , NX and SSE2 support)
Memory (RAM) 1 GB 2 GB
Graphics Card DirectX 9 graphics device with WDDM 1.0 or higher driver
Storage 16 GB 20 GB
System requirements for Windows 8(tablet)
Graphics Card DirectX 10 graphics device with WDDM 1.2 or higher driver
Storage 10GB free space, after the out-of-box experience completes
Standard buttons 'Power', 'Rotation lock', 'Windows Key', 'Volume-up', 'Volume-down'
Screen Touch screen supporting a minimum of 5-point digitizers and resolution of at least 1366x768. The physical dimensions of the display panel must match the aspect ratio of the native resolution. The native resolution of the panel can be greater than 1366 (horizontally) and 768 (vertically). Minimum native color depth is 32-bits.
Camera Minimum 720p
Ambient light sensor 1–30k lux capable with dynamic range of 5–60K
Accelerometer 3 axes with data rates at or above 50 Hz
USB 2.0 At least one controller and exposed port.
Connect Wi-Fi and Bluetooth 4.0 + LE (low energy)
Other Speaker , microphone , magnetometer and gyroscope .
If a mobile broadband
How to upgrade
Users will be able to purchase an upgrade to Windows 8 online (using a download that can be optionally burned to a DVD), or through boxed copies at retail on DVD
Prices and special offers from microsoft
Microsoft will offer upgradesfrom previous versions of Windows to Windows 8 Pro at a discounted price of $39.99 USD ($69.99 at retail) from its launch until January 31, 2013. [ 91 ] [ 92 ] [ 90 ]
Microsoft also began to offer an upgrade program for those purchasing new PCs pre-loaded with Windows 7 Home Basic, Home Premium, Professional, or Ultimate between June 2, 2012, and January 31, 2013—in which users will be able to digitally purchase a Windows 8 Pro upgrade for $14.99 USD.
Finally here's a link to buy Windows 8 from Amazon: