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The iPad has shown there people have tremendous interest in using tablet computers.Since going on sale in April, two million iPads have been sold worldwide. The iPad has been marketed as a browsing device offering impressive connectivity, yet little inside it is radically innovative. Apple hasn’t created amazing new tech so much as beautiful, well-integrated tech.

Here’s what the iPad holds inside:

Wi-Fi Antennas
The iPad’s two Wi-Fi antennas are designed for a strong signal–so strong that the device was, at first, banned from Israel because the country’s ministry of communications feared it would interfere with other wireless frequencies. Testing proved that the iPad could adjust its signal without causing problems, and Israel lifted the ban.

GPS and Cellular Antennas
Unlike the iPhone, which is locked to AT&T’s network, the iPad could theoretically run on any carrier’s network. But there’s a catch: the micro SIM card that connects the device to the network is unusually small. This means that users in the United States who want to switch to another network must wait for carriers to create micro SIM cards that can be used with the iPad.

LED Display and Drivers
Apple designed the iPad screen so that a user can easily view it from a variety of angles. The device uses a technology called in-plane switching, which aligns the molecules inside the screen in a way that gives it a wider viewing angle. The iPad also has an accelerometer that helps the device sense which end is up and switch the orientation accordingly.

A4 Chip
Apple introduced its new A4 chip with the first version of the iPad. It’s a “system on a chip” that integrates the central processing unit, the graphics core, and the memory controller. The iPad can work for 10 hours on a single charge, and Apple says one reason for this is that the A4 chip is so power-efficient.

Communications Board
GPS and cellular antennas make it possible to connect to AT&T’s network, and the GPS allows for location-based applications such as turn-by-turn navigation and services that recommend local businesses.

Micro SIM Card
The board consists of a chipset that drives the device’s GPS and cellular connections, plus power amplifiers that boost the signals. Many of the chips are identical to those used in some models of the iPhone.

Source: Tech Review.