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What is ASP.NET Session?

A session is defined as the period of time a unique user interacts with a particular web application.

HTTP is a stateless protocol, in the sense that a Web server is concerned only with the current HTTP request for any given Web page. The server retains no knowledge of previous requests.

The stateless nature of HTTP requests presents unique challenges when writing Web applications.

ASP and ASP.NET applications maintain a user’s session using a feature called session state.

In this series we are going to talk in detail about how to troubleshoot ASP.NET session state related issues.

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Scientists at the Stanford University, USA, have the reported that they have successfully turned a specific type of paper (coated with ink made of silver and carbon Nano materials) into a “paper battery”. This recent development holds promise for a new kind of lightweight, high-performance energy storage.

There is a specific feature which helps ink stick to the surface of a paper. The same feature also allows it to hold on to the single-walled carbon nanotubes and silver nanowire films. Earlier research had found that silicon nanowires could be used to make batteries 10 times as powerful as lithium-ion- batteries, which are currently used to power devices such as laptops.

Taking advantage of the mature paper technology, low-cost and high-performance energy storage are realized by using conductive paper as current collectors and electrodes. This type of battery could be useful in powering electric or hybrid vehicles.   It may be mentioned here that battery weight and life have been an obstacle to commercial viability of electric-powered cars and trucks. It may be also play a big role in making electrical appliances lightweight and long-lasting, and may even lead someday to paper battery is that in addition to being useful for portable electronics and wearable electronics, the paper supercapitators  can also be used for all kinds of applications that require instant high power.

As per a report released in mid-January 2010, it will soon be possible to answer a call on the mobile phone without touching a button. Such mobile phones, equipped with the revolutionary breath- controlled technology, will soon be available in the market. The breath- controlled technology is called Sensawaft. It has been developed by Zyxio, a US firm. The new technology will be used by as wide a range of gadgets as possible, including in aids for disabled people, as well as in hands-free mobile phones.

Sensawaft  is powered by micro-electromechanical system, tiny chips that can be embedded in other devices, such as a video game or hands-free mobile phone headset. The possibilities of this technology are endless. It even has potential for the military and factory workers, who need to use both their hands continually. Another added functionality would surely be of much for such people.

Some Linux fans will have you believe that even though Windows dominates the desktop, Linux is closing in on Microsoft in the server market. New research from IDC shows that it’s not so: Windows beats Linux when it comes to servers by well over a three-to-one margin, as it has for at least a year.

IDC recently issued a report about worldwide server use, which primarily focused on server hardware, with IBM in the lead, followed by HP, Dell, Sun, and Fujitsu.

Just as interesting are the figures for market share by operating system. The research shows that Windows Server had a 73.9% market share for the fourth quarter of 2009, with Linux at 21.2%. Those numbers are precisely the same — down to the tenth of a percentage point — as they were a year previous.

When it comes to revenue, Windows cleans up as well, with nearly $5.4 billion in revenue for the quarter, compared to a little over $1.9 billion in revenue for Linux.

The upshot? Windows doesn’t just dominate the desktop, but the server market as well, and shows no signs of slowing up.

Source : IDC Press release, www.idc.com.

Microsoft’s chief financial officer confirmed today that the company will offer a free upgrade to the upcoming Office 2010 suite starting this month. In a presentation at the Morgan Stanley Technology, Media & Telecom Conference, Microsoft CFO Peter Klein said that the Office 2010 Technology Guarantee program would kick off before the end of March.

Last month, details of the free Office 2010 upgrade program leaked to the Web when a Microsoft technology specialist posted information to the firm’s partner community site. The site said that Microsoft would launch the Office 2010 upgrade deal on March 5 and run the program through Sept. 30.

According to the leaked information, customers who purchase an eligible copy of Office 2007 during that period will be allowed to download a corresponding edition of Office 2010 for free when the new suite launches in June. Users who want a DVD installation disc will have to pay a small shipping-and-handling fee.

Buyers of Office Home and Student 2007 will receive a free copy of Office Home and Student 2010, while buyers of Office Standard 2007 will be eligible for a free copy of Office Home and Business 2010, a new addition to the Office lineup. Purchases of either Office Small Business 2007 or Office Professional 2007 will be eligible for a free copy of Office Professional 2010.

Free upgrade programs are nothing new for Microsoft. Last summer, Microsoft used the Windows 7 Upgrade Option to maintain sales of Vista, giving customers who bought a copy of the soon-to-be-replaced Vista between June 26 and Oct. 22 free copies of Windows 7 when it launched. The company also offered similar deals prior to releasing Office 2007 and Office 2008 for Mac. Office 2010 is set to ship in June, and will be the first of its suite line to forego less-expensive upgrade editions.

Microsoft will install a plug-in for its Outlook 2010 e-mail application for Xing, a large professional networking site dominant in Germany. The plug-in will allow Outlook users to see messages, status updates and other information via Outlook without the need to use a Web browser. It effectively makes Outlook a front end for interacting with Xing, as a person’s colleagues can be directly contacted through the application. Microsoft said that helps users save time.

The Xing plug-in is part of Microsoft’s Outlook Social Connector, which is a set of features that allow for close integration with social-networking sites. Microsoft already has an agreement with LinkedIn.

Through the plug-in, users can see photographs of people they have contacts with. Outlook also synchronizes contacts from each social network with its own address book and users’ mobile phones.

Xing says it has about 8 million users in 200 countries. Users can create a free account, and Xing also runs paid services such as job advertisements, recruiting and other kinds of advertising.

The Xing plug-in will be available when Microsoft releases Outlook 2010, expected in June.

Windows Mobile is reborn. We all met the new Windows Phone 7 and by the end of the year we’ll meet the first smartphones based on it. Reportedly, Microsoft will launch their own phone in early 2011 as well. And it will be made by Asus.

With the Windows Phone 7 Microsoft didn’t start a new chapter in WinMo’s history. They started it over. We’ll see if it’s for the better or for worse.

According to the Northeast Securities analyst Ashok Kumar, there is more to see from the company. A Microsoft branded mobile phone. Currently, it’s in the works and is expected to be ready for its premiere sometime at the beginning of the next year.

Microsoft’s own Windows Phone 7 smartphone will be a touchscreen-equipped bar made by Asus. None of the companies have neither confirmed nor denied that so far.

Source