Mac OS X Lion 10.7
Mac OS Has been a popular operating system since the '80s. It was the first platform to incorporate the use of a mouse. Now recently (July 22, 2011) Apple has released it's newest operating system - Mac OS X Lion. (Pronounced Mac O, S, ten Lion). The main features which build on the already world renowned operating system, include multitouch gestures, full screen apps, mission control, Mac App store, Launchpad, Resume, Auto-save, versions, AirDrop, and many UI adjustments/enhancements.
Multi-Touch Gestures allow the user the ability to use a combination of fingers in a specific motion, to control the operating system, it is incorporated into many of the following features. Full screen apps in built into most of the applications on the Mac, and all of the built in apps on the Mac. It has a button that is two diagonal arrows pointing away from each other, and fills the entire screen with just that app. Which leads us to the next feature: Mission Control. Mission control gives you a birds eye view of everything happening on your Mac. It shows you every window in an exposè view on a single desktop. You can then create new desktops by dragging your mouse to the top right hand corner and clicking on the small window that pops up. You can then drag each desired window to your preferred desktop space. Not only that, but when you go full screen in an app, it creates the app's own desktop with it filling the entire screen. It also sets your dashboard, (introduced in Mac OS X 10.4 Tiger) as its own desktop to the left of the first desktop. It is accessible through gestures through a three finger slide up on a Magic TrackPad, or a double finger tap on a Magic Mouse, or it is available through an icon on the dock. The Mac app store (First released in a newer system update with Mac OS X 10.6 Snow Leopard) is a collection of all Apple apps, and 3rd party developer apps, that is available to any Mac running Mac OS X Lion. You just insert your Apple ID and Password, and you click the download button, and it flies up into the next feature. LaunchPad is a feature that allows you to view all your built in applications with your downloaded apps that is on your Mac. The windows on the background fade out, and a full screen window fades down onto the desktop that shows all your apps. You can arrange the apps by holding and dragging them around to your liking. You can even drop and app on top of another app to create a folder. When you download an app from the Mac app store, it lifts up the icon from the window, opens the launchpad window, and drops the app in the next available space. LaunchPad is available through a three finger pinch on the Magic TrackPad, or you can click on an icon in the dock. Resume is a features incorporated to all apps on the Mac. It saves where you were, (window arrangement, etc) and when you restart the application, it is EXACTLY how you left off, which includes your mission control setup. Autosave saves your work as it happens. Even if you don't save your document a first time, it uses resume to restore your work. However besides that save your work, on any app, a firs time and it saves it as it happens, so you no longer have to save. When you save a document as a version it keeps track of previous versions so through a click on the top bar of the menu, you can see all the changes that you have made to that document. However, not only that, but you can edit the documents right in versions, and restore it if you made a change that you don't like. AirDrop is a feature included into all new, and last generation macs. You automatically see all the people running Lion on the same WiFi network. You just drag a file onto someone's profile picture, it asks that person on their computer to accept the file, and if they do the file lifts up and jumps into their downloads folder on the dock. And the last feature of Mac OS X lion, besides those of previous releases, is an incredible UI Adjustment to the finder (File Browser), and many other applications. Without going into great detail, you can now create search buttons, to organize by multiple keywords, in all of the apps. Plus the User interfaces are updated on just about all the apps to make your experience, a better one. http://www.apple.com/macosx