What is an Apple iPad Tablet PC?

The iPad is a tablet computer designed and developed by Apple. This is particularly oriented media such as books, newspapers, magazines, movies, music, games, but also to the Internet and access to his emails.

Main Features

With a weight of between 680 and 730 grams, its models are located between those of those smartphones and laptops. Apple has sold 3 million iPad within 80 days of its release .

The iPad is running the same OS as the iPhone and iPod touch, iOS 5 iPad since October 12, 2011, the upgrading after owning a specific version of IOS, the 3.2 . The iPad can both run specific applications to its platform that applications developed for iPhone and iPod touch. Without software modification, these applications are, like the two devices, downloadable from the App Store.

Like the iPhone and the iPod Touch, the iPad is controlled via a multi-touch screen sensitive than eleven fingers , unlike other ancient tablets that used a stylus triggering a pressure-sensitive mechanism. The iPad uses either Wi-Fi models in this Wi-Fi and 3G + Wi-Fi or a 3G network connection, all for browsing the Internet, download or upload data, and installing applications. The USB 2.0 cable supplied is necessary for data synchronization with iTunes on a PC - software through which the device is managed - is the same as the iPod range and iPhone.

Media reaction with respect to the iPad was generally neutral or positive, with a more positive response after its release. If the press has generally welcomed the aesthetic responsiveness and intuitiveness of the device, it was more critical for some of its limitations, and its very marked distinction with the iPhone or iPod Touch.

History

The first tablet was developed by the Apple Newton MessagePad 100 , a personal assistant and released in 1993 which led to the creation of the heart ARM6 processor with the British company Acorn. Apple also developed a prototype tablet based on the PowerBook Duo, the Penlite, but abandoned the project to avoid harming the MessagePad sales . Apple has also released several assistants based on the Newton, but stopped production in 2100 with the MessagePad in 1998.

Apple went back on the market of mobile computing in 2007 with the iPhone. Smaller than the iPad, but with a camera and a mobile phone, he pioneered the multi-touch interface sensitive fingers of the operating system from Apple - iOS. However, Steve Jobs later revealed that both devices have been designed from the same project, and that even the iPad was originally intended to be produced before the iPhone . In late 2009, the release of the iPad from Apple was among the rumors dragged for several years. Generally referred to as "the Apple Tablet" iTablet iSlate and were among the names of speculators . The iPad was announced January 27, 2010 by Steve Jobs at an Apple press conference at Yerba Buena Center for the Arts in San Francisco .

The second generation iPad is presented March 2, 2011 by Steve Jobs, this despite his sick announced January 17, 2011. The conference was held at the same place as the first version of the iPad, YBCA in San Francisco.

Hardware Features

The touch screen of the iPad is an LCD multi-25-inch diagonal (9.7 inches) a definition of 1024 × 768 pixels with a coating resistant oleophobic fingerprints and a resistant glass scratches. Like the iPhone, iPad is designed to be controlled by the fingers of the gloves and styluses prevent normal electrical conductivity, they can be used . This screen is made in part by Wintek .

The screen responds to two other sensors: an ambient light sensor to adjust screen brightness, and a 3-axis accelerometer orientation which toggles the iPad between portrait and landscape. Unlike applications built into iPhone and iPod touch that can occur in three directions (portrait, landscape and landscape-left-right), those integrated into the iPad support a display in the four directions (the three mentioned and the portrait in reverse) , which means that the device has no position "native", and only the home button can make the difference between the two directions (up and below).

The iPad has a switch for locking the tipping function, whose function is to prevent accidental rotation when the user is lying . There are a total of four physical buttons, including a home button below the screen that the user returns to the main menu, a Sleep / Wake button, a button Volume + / - 'in addition to tilt lock of screen . Since version 4.3, the switch blocking switching can also be used to mute the sound (but not both functions together, a single choice). The tilt lock is making a virtual double-clicking the home button.

Connectivity

The iPad can use trilateration network of Wi-Fi Skyhook Wireless (in) to provide location information for applications such as Google Maps. The 3G model has a A-GPS to allow a distance to a position of being calculated by GPS or with respect to cellular towers near; this model also has a black plastic bar on the rear face to improve the reception sensitivity 3G .

Regarding wired connectivity, the iPad has a 30-pin dock connector, it is the same as the iPod range (except the iPod shuffle) and iPhone, and has no Ethernet port or USB port, found on traditional computers.

Audio Output

The iPad has an internal speaker that sends a mono sound through two small chains with three ports sealed speakers carved on the lower bottom right of the device .

A 3.5 mm jack for audio output on the upper left corner of the device offers stereo sound for headphones or earphones, with or without microphones and / or volume controls. The iPad also has a microphone that can be used for voice recording.

The Bluetooth 2.1 + EDR enables a headset or wireless keyboard to be used with iPad . However, IOS does not support file transfer via Bluetooth . The iPad also has a VGA video output 1024 × 768 for connecting an external monitor or TV.

Power and battery
The iPad uses an internal rechargeable lithium polymer. These batteries are manufactured in Taiwan with 60% of production is made by Simplo Technology, and the remaining 40%, by Dynapack International Technology . The iPad is designed to be loaded with a high current (2 A) using the 10 W adapter included. While it can be loaded via a standard USB port from a computer, these ports usually provide a lower power (500 mA to 1 A). Therefore, if the iPad is on during charging with a USB port on a computer, it loads much more slowly, if at all. Apple claims the battery of the iPad can provide up to 10 hours of video playback, 140 hours of audio playback, or a month before. The battery loses capacity over time and is not designed to be user replaceable.

As is already done for the iPod and the first generation iPhone as part of the official program of replacing batteries, the iPad that do not load are taken up by Apple iPad and replaced with reconditioned, at a cost of $99 U.S.

Storage and SIM
The iPad is marketed with three size options for internal storage data: 16, 32, or 64 GB flash memory. All data is stored on the flash drive and there is no expandable storage space. Apple sells a camera connection kit with an SD card reader, but it can be used to transfer pictures and videos with a camera to an iPad .

The part of the model Wi-Fi + 3G has a slot for micro-SIM (no mini-SIM). Unlike the iPhone, which is usually sold locked, the iPad WiFi + 3G is sold unlocked and can be used with any GSM-compatible . Japan is an exception to the rule, where the device is locked to SoftBank .

Optional accessories
Many accessories are available for iPad, whether produced by Apple or third party manufacturers in the program Made for iPad. We thus find physical keyboards can be connected to the iPad via the dock connector or over Bluetooth, covers rigid or flexible, and adapters such as card reader or VGA video / HDMI.