The all-new thinner and lighter design make the Apple iPad 2, 16GB with Wi-Fi even more comfortable to hold. It's even more powerful with the dual-core A5 chip, yet has the same 10 hours of life. With two cameras, you can make FaceTime video calls, record HD video, and put a twist on your snapshots in Photo Booth. The iPad 2 was proclaimed to be the start of a "post PC" era. The iPad 2 is a tablet computer designed for "browsing the web, reading and sending emails, enjoying photos, watching videos, listening to music, playing games, reading e-books, and much more! " It is equipped with a 9.7" (1024x768, 132 PPI) multitouch "glossy" LED-Backlit IPS display and runs a version of the same iOS operating system that powers the iPhone and iPod, touch models. As a result, it is compatible with thousands of iPad-specific apps as well as most apps for the iPhone/iPod touch, but not MAC OS X apps. The iPad 2 is powered by a custom-design 1 GHz dual-core Apple A5 "system on a chip", has front and rear-mounted cameras, 802.11 a/b/g/n Wi-Fi, an accelerometer, a three-axis gyroscope, an ambient light sensor, digital compass, a speaker, and a built-in mic packed in a 0.34 inch thick, 1.34-pound glass and aluminum case with a black or white front and an aluminum back. Compared to the original iPad, major differences for the iPad 2 models include a thinner, lighter case design, faster processors, system-wide mirroring support, and the aforementioned cameras.