Nexus 7 Second Generation
When the Nexus 7 was introduced in July 2012 , it received critical acclaim. With a 7-inch display, 1GB of memory, WiFi, an Nvidia Tegra 3 quad-core chip and running version Android 4.2, known as the Jelly Bean operating system, the Nexus 7 was clearly intended as a self-contained entertainment system and sold over four and a half million items.