iPad. How Stuff Works.


iPad is a kind of Tablet PC designed and released by the Apple Inc which operates in the Apple’s iOS system. It is similar to the Tablet, the mobile version of the computer with touch screen technology. The products of Apple Inc starts with ‘i’ like iPhone, iPad, iPod etc which is something related to ‘internet’, the idea of Steven.P.Jobs to make a product that has easy access to internet.

The first iPad was released on April 3rd 2010 and now there are latest versions like iPad Mini released on 2nd November 2012. The new versions have virtual key pad and multi touch screen with Wi-Fi connectivity for 3G and 4G. The iPad has facilities like video shooting, snapping and play music, send and receive emails and web browsing. There are different versions of iPad like Original, iPad2, Third generation iPad, Fourth generation iPad and iPad Mini.

The first two generations of iPad have LCD display of 1024 by 768 pixels with finger print resistant screen. The iPad is designed for touch with finger only and the stylus will not work in it. The iPad has many features like ambient light sensing to control brightness, 3 axis accelerometer to control the orientation and facility to use in portrait and landscape modes. The iPad has 4 switches for controlling it’s working. These include a Home button to control menu, a switch for volume control, wake and sleep switch and a software controlled switch. Camera is absent in Original iPad but the iPad 2 has a front and rear camera for taking photos and video.

Audio facility in iPad is excellent and has two internal speakers for the left and right channels. Output for Head phone is also available. For Voice recording, microphone is available in iPad. Built in Bluetooth facility helps to access wireless head phone and keypads.

Power to the iPad is obtained from a Lithium ion polymer (LiPo) rechargeable battery which is usually charged with high current of 2 Amperes using a 10 watt USB power adapter. It can be charged from the USB port of the Computer but the charging current will be low around 500 milli amperes. If the iPad is using the USB power from the computer, the battery will not charge fully. The battery is high efficiency one and can provide power for 10 hours of video recording and 100 hours of music play.

The iPad has an internal flash memory of 16, 32 and 64 GB depending on the make. The data can be stored only in the Flash memory and no expansion of memory is possible. The iPad runs only on its own software which can be downloaded from the Apple’s App store.


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