The new operating system will run on tablets, desktop and laptop computers via a touch screen, mouse or keyboard. It will also be backward compatible to existing Windows software.
Windows 8 represents Microsoft’s hope of wrestling market share for tablet computers from Apple iPads and Android tablets.
Microsoft will unveil the next iteration of their Windows operating system software today at a developers conference in Anaheim, California. A preview of the design was first released in June this year.
This will be the first time that a Windows operating system is capable of running on chip technology from ARM. Microsoft aims to make Windows 8 capable of running smaller, thinner tablet computers with battery life that can rival that of the market leader – Apple’s iPad.
Out of 60 million media tablets expected to be shipped 2011, 74 percent will be Apple’s iPads, according to an August forecast by IHS. The global market is forecasted to rise to 275.3 million units in 2015, with Apple expected to account for 43.6 percent of the market.
Windows 8 design
The user interface for Windows 8 resembles Microsoft’s Windows Phone 7 smartphone operating system – it uses digital tiles instead of icons to help users navigate between programs. The tiles are on the computer’s home screen can display updated information from inside applications, so that users can see the info at a glance without having to fire up those apps.
At the Worldwide Developers Conference (WWDC) 2011 today, Scott Forstall – Apple’s senior vice president of iOS – paraded 10 of the promised 200 new features for the iPhone, iPad, and iPod Touch. Although customers will only be receiving the update in autumn, developers will get their version of iOS 5 today.
Notification Center provides iOS 5 users with an innovative way to easily access all notifications―text messages, missed calls, calendar alerts, app alerts and more, all in one place, from anywhere in iOS 5. When they arrive, notifications appear briefly at the top of the screen without interrupting what you’re doing. With one swipe you can see all your notifications, and a simple tap will take you right to its app for more detail. Notifications also appear on the lock screen, with the ability to be taken to the notifying app with just one swipe. This is similar to the consolidated notification alert bar and window on newer BlackBerry devices like the 
Newsstand is an easy-to-organise bookshelf displaying the covers of all your newspaper and magazine subscriptions in one place. A new section of the App Store features just subscription titles, and allows users to quickly find the most popular newspapers and magazines in the world. For subscribed titles, new issues appear in the Newsstand and are updated automatically in the background so you always have the latest issue and the most recent cover art.
Safari sees new features for the browser in iOS 5. Safari Reader will strip down poorly formatted pages into an RSS-like view, and provides a link that allows you to e-mail the entire text of a story from within Safari. Reading List lets you save articles to read later and they automatically show up on all your iOS devices. Tabbed browsing is now available on the iPad making it easy to flip between multiple web pages on the tablet.
iOS 5 includes built-in Twitter integration, so you can sign in once and then tweet directly from all your Twitter-enabled apps, including Photos, Camera, Safari, YouTube and Maps with a single tap. New APIs give third party developers the ability to take advantage of the single sign-on capability for their own iOS 5 apps.
iMessage in iOS 5 brings the functionality of iPhone messaging to all of your iOS devices―iPhone, iPad and iPod touch. Built right into the Messages app, iMessage allows you to easily send text messages, photos, videos or contact information to a person or a group on other iOS 5 devices over Wi-Fi or 3G. iMessages are automatically pushed to all your iOS 5 devices, making it easy to maintain one conversation across your iPhone, iPad and iPod touch. iMessage also features delivery and read receipts, typing indication and secure end-to-end encryption.
With the new PC Free feature, iOS 5 users can activate and set up their iOS device right out of the box with no computer required, and iOS software updates are delivered over the air and installed with just a tap. Wi-Fi Sync in iOS 5 transfers and backs up your content securely over SSL and wirelessly syncs purchased content from your device to your iTunes library.
• Game Center, now with the ability to add photos to your profile, purchase new games from within the Game Center app and easier ways to find friends and new games.
The iOS 5 beta software and SDK are available immediately for iOS Developer Program members at 
“Today it is a real hassle and very frustrating to keep all your information and content up-to-date across all your devices,” said Steve Jobs, Apple’s CEO. “iCloud keeps your important information and content up to date across all your devices. All of this happens automatically and wirelessly, and because it’s integrated into our apps you don’t even need to think about it—it all just works.”
• The App Store and iBookstore can now download purchased iOS apps and books to all a user’s devices, not just to the device they were purchased on. Simply tapping the iCloud icon will download any apps and books to any iOS device (up to 10 devices) at no additional cost. The App Store and iBookstore now let a user see his/her purchase history.
• iCloud Storage seamlessly stores all documents created using iCloud Storage APIs, and automatically pushes them to all of a user’s devices. When document is altered on any device, iCloud automatically pushes the changes to all the other devices. Apple’s Pages, Numbers and Keynote apps are already using iCloud Storage. Users get up to 5GB of free storage for their mail, documents and backup — and this does not include the storage for music, apps and books purchased from Apple, as well as the storage required by Photo Stream. Users will be able to buy even more storage, with details announced when iCloud ships this fall.
iCloud
The iOS 5 beta software and SDK are available immediately for iOS Developer Program members at 
Philip Schiller, Apple’s senior vice president of Worldwide Product Marketing, briefed WWDC 2011 attendees on the eighth major release of Apple’s desktop operating system, which features more than 250 new features and 3,000 new developer APIs.
Mac OS X Lion will be available in July as an upgrade to Mac OS X version 10.6 Snow Leopard from the Mac App Store for US$29.99. At about 4GB, it is the size of an HD movie from the iTunes Store. Mac OS X Lion Server requires Lion and will be available in July from the Mac App Store for US$49.99.
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