Windows 7 vs Windows 8

According to Microsoft Windows 8 is the reconstruction of Windows 7. The architecture of Windows 7 has been completely reformed. On comparing Windows 7 with Windows 8 there are many differences in features and performance among both of them. There are many new features and latest improvements that will be dominating Windows 7.Windows 8 is much better than Windows 7. It is user friendly and has much better and advanced interface. It is much secured and takes less time for booting. Though Windows 7 will be giving a tight competition yet Windows 8 latest features would surely affect the overall performance of Windows 7.

Booting: The booting of the Windows 8 takes place at a very rocking speed. It takes approximately 8 seconds for booing after the machine is switched ON. Thus it is less time time consuming and is very easy to handle than Windows 7.some of comparison.

• Processor Requirement: Windows 7 needs 32-bit or 64-bit or Intel Processor. On the other hand Windows 8 requires the same and can even run on ARM-32 bit embedded microprocessor.
• Power Management: Windows 8 has the capability to start on zero power state within fraction of seconds. None other OS has this facility. Hence, a large amount of battery life and energy can be saved.
• Cloud Services: Windows 7 lacks online storage using cloud computing. On the other hand Windows 8 will be starting a new online back up service in the system data.
• Internet Explorer: Windows 8 has the latest version of internet explorer. Internet Explorer 10 is completely different from its earlier versions.
• Speed: Widows 8 is fast. Apps open quickly and browsers are more responsive than Windows 7. Comparatively Windows 8 feels like a more modern OS.
• Hibernation: Unlike Windows 7 windows 8 hibernates correctly. This is the first version of Windows to do so.
• Metro Interface:Windows 8 has a completely different interface. It is tablet oriented touch screen technology based OS. Thus, it helps in overcoming the drawbacks of Windows 7.

Windows 8 evaluation for developers

Windows 8 Enterprise 90-day evaluation is available to developers to build and test Windows 8 apps on the final version of Windows 8. After installing Windows 8, go to the Windows Dev Center developer downloads page to install Visual Studio 2012 and related tools to build Windows 8 apps.

This evaluation provides a 90-day trial of Windows 8 Enterprise edition. Both 32-bit and 64-bit versions are available as ISO images in the following languages: Chinese (Simplified), Chinese (Traditional), English, English (UK), French, German, Italian, Japanese, Korean, Portuguese (Brazil), and Spanish. In order to use this evaluation, you must register and the product must be activated online with Microsoft-hosted activation and validation services. Microsoft does not provide technical support for this software.

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Windows 8 works on the same hardware that powers Windows 7:

• Processor: 1 gigahertz (GHz) or faster
• RAM: 1 gigabyte (GB) (32-bit) or 2 GB (64-bit)
• Hard disk space: 20 GB
• Graphics card: Microsoft DirectX 9 graphics device with WDDM driver

Google Nexus 7

The Google Nexus 7 is an Android 4.1 ("Jelly Bean") tablet with a seven inch display, available for pre-order in most English-speaking countries right now and due to start shipping in the US in July.

This form factor has proven very popular with the Amazon Kindle Fire, in part because a 7" tablet is easier to hold than a 10" one, and in part because a 7" tablet is also very much cheaper to buy. With prices starting at $199 in the US (with a $25 Google Play voucher at launch) and £159 in the UK (with a £15 voucher), the Nexus 7 is a very affordable device.
The display on the Nexus 7 is a 7" 800 x 1280 pixel panel with scratch-resistant Corning glass. There's a front-facing 1.2 megapixel camera for video calling but no camera on the back. Inside is a powerful quad-core Tegra 3 processor coupled with 1GB of RAM. The Nexus 7 has a choice of 8GB or 16GB of internal non-expandable flash storage, which isn't a massive amount, and therefore it's a shame that there is no microSD slot.
Google's main competitor here is Amazon rather than Apple, and it's likely in part that Google have seen that Amazon's Kindle Fire product is very good at driving consumers to make more purchases (such as books and videos) from Amazon, and Google would quite like a slice of that business for themselves.

What is Symbian?

Symbian is a mobile operating system and computing platform designed for smartphones.The Symbian platform is the successor to Symbian OS and Nokia Series 60; unlike Symbian OS, which needed an additional user interface system, Symbian includes a user interface component based on S60 5th Edition. The latest version, Symbian V.3,was officially released in 2010, first used in the Nokia N8. In May 2011 an update, Symbian Anna, was officially announced, followed by Nokia Belle (previously Symbian Belle) in August 2011.
                          Symbian OS was originally developed by Symbian Ltd.It is a descendant of Psion's EPOC and runs exclusively on arm processors, although an unreleased x86 port existed.Some estimates indicate that the number of mobile devices shipped with the Symbian OS up to the end of Q2 2010 is 385 million.The Symbian platform was created by merging and integrating software assets contributed by Nokia, NTT DoCoMo, Sony Ericsson and Symbian Ltd., including Symbian OS assets at its core, the S60 platform, and parts of the UIQ and MOAP(S) user interfaces.