Game Center

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At a glance

Game Center lets you play your favorite games with friends who have an iPhone, iPad, iPod touch, or a Mac with OS X Mountain Lion. You must be connected to the Internet to use Game Center.

WARNING: For important information about avoiding repetitive motion injuries, see Important safety information on page 129.

Play the game. See who’s the best.

See a list of game goals.

Find someone to play against.

Choose a game to play.

Check for challenges from friends.

Respond to friend requests.

Invite friends to play.

Declare your status, change your photo, or sign out.

Sign in: Open Game Center. If you see your nickname and photo at the top of the screen, you’re already signed in. If not, enter your Apple ID and password, then tap Sign In. You can use the same Apple ID you use for iCloud, App Store, or iTunes Store purchases, or tap Create New Account if you want a separate Apple ID for gaming.

Purchase a game: Tap Games, then tap a recommended game or tap Find Game Center Games.

Play a game: Tap Games, choose a game, then tap Play.

Return to Game Center after playing: Press the Home button , then tap Game Center on the Home screen.

Sign out: Tap Me, tap the Account banner, then tap Sign Out. You don’t need to sign out each time you quit Game Center.

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Apple MD724LL/A, MC903LL/A, ME643LL/A manual Game Center, At a glance

ME643LL/A, MC903LL/A, MD724LL/A specifications

The Apple MD724LL/A, MC903LL/A, and ME643LL/A are notable models in the line of MacBook laptops, epitomizing Apple's commitment to high-quality design and cutting-edge technology. These devices cater to various user needs, from casual browsing to intense professional tasks, offering a blend of performance, portability, and sleek aesthetics.

The MD724LL/A, also known as the MacBook Air (13-inch, Mid 2013), showcases Apple's emphasis on portability. It features a lightweight aluminum chassis, weighing just 2.96 pounds, which makes it incredibly easy to carry. With a 13.3-inch display that boasts a resolution of 1440 x 900 pixels, the viewing experience is clear and vibrant, suitable for both work and entertainment. The device is powered by Intel's fourth-generation Core i5 processor, providing robust performance while maintaining energy efficiency, significantly enhancing battery life, which can last up to 12 hours on a single charge.

The MC903LL/A, representing the MacBook Pro with Retina display (15-inch, Mid 2012), offers a more powerful performance for users who require advanced capabilities. It features a stunning Retina display with a resolution of 2880 x 1800 pixels, delivering breathtaking visuals and sharp text. This MacBook Pro is equipped with quad-core Intel Core i7 processors, providing the necessary horsepower for demanding applications like video editing and 3D rendering. Additionally, its dedicated NVIDIA GeForce graphics card ensures high-performance graphics rendering, making it ideal for creative professionals.

Lastly, the ME643LL/A, another variant of the MacBook Air (11-inch, Mid 2013), is designed for those who prioritize portability without sacrificing performance. Similar to the MD724LL/A, it also utilizes Intel's fourth-generation processors but in a more compact 11-inch chassis. This model weighs just 2.38 pounds and still offers impressive battery life, appealing to students and professionals on the go. With a resolution of 1366 x 768 pixels, this display strikes a good balance between size and usability.

All three models incorporate advanced features such as fast flash storage, which enhances application loading times and overall system responsiveness. Additionally, they come with a variety of connectivity options, including USB 3.0 ports and Thunderbolt, allowing for seamless integration with peripherals and external displays.

In summary, the Apple MD724LL/A, MC903LL/A, and ME643LL/A models represent a versatile range of MacBooks that cater to different user needs, embodying Apple's passion for innovation, design, and performance. Each model provides distinct features and technologies, ensuring that whether you are a casual user or a professional creative, there is an Apple laptop that fits your requirements.