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| discontinued = | os = Original: iOS 3.2 Current: iOS 5.1.1, released | power = Built-in rechargeable Li-Po battery mA·h, 10hr life | soc = Apple A4〔 | cpu = 1 GHz ARM Cortex-A8〔 | storage = 16, 32 or 64 GB flash memory〔 | memory = 256 MB DDR RAM | display = 1024 × 768 px 132 PPI 4:3 aspect ratio diagonal XGA, LED-backlit IPS LCD〔 | graphics = PowerVR SGX535 | sound = Bluetooth, speaker, microphone, headset jack〔 | input = Multi-touch screen, proximity and ambient light sensors, 3-axis accelerometer, digital compass〔 | connectivity = 〔 | service = iTunes Store, App Store, iCloud, iBookstore | dimensions = ''(h)'' ''(w)'' ''(d)''〔 | weight = Wi-Fi: Wi-Fi + 3G: 〔 | predecessor = Newton | successor = iPad 2 | related = iPhone, iPod Touch (Comparison) | website = }} The first-generation iPad ( ) is a tablet computer designed and marketed by Apple Inc. as the first in the iPad line. The device features an Apple A4 processor, a 9.7" touchscreen display, and on certain variants the capability of accessing cellular networks. Using the iOS operating system, the iPad can play music, send and receive email and browse the web. Other functions, which include the ability to play games and access references, GPS navigation software and social network services can be enabled by downloading apps. The device was announced and unveiled on January 27, 2010 at a media conference. On April 4, 2010, the Wi-Fi variant of the device was released in the United States, followed by the release of the Wi-Fi + Cellular variant on April 30. On May 28, it was released in Australia, Canada, France, Japan, Italy, Germany, Spain, Switzerland and the United Kingdom. The device received primarily positive reviews from various technology blogs and publications. Reviewers praised the device for its wide range of capabilities and labelled it as a competitor to laptops and netbooks. Some aspects were criticized, including the closed nature of the operating system and the lack of support for the Adobe Flash multimedia format. During the first 80 days, three million iPads were sold. By the launch of the iPad 2, Apple sold more than 15 million iPads. On March 2, 2011, Apple announced the new iPad 2 and the discontinuation of production of the original iPad.〔(【引用サイトリンク】 title=Apple Special Event - March 2, 2011 )〕 ==History== Apple co-founder Steve Jobs stated in a 1983 speech that his company’s Apple’s first tablet computer was the Newton MessagePad 100, introduced in 1993, which led to the creation of the ARM6 processor core with Acorn Computers. Apple also developed a prototype PowerBook Duo-based tablet, the PenLite, but decided not to sell it in order to avoid hurting MessagePad sales. Apple released several more Newton-based PDAs; the final one, the MessagePad 2100, was discontinued in 1998. Apple reentered the mobile-computing market in 2007 with the iPhone. Smaller than the (not yet announced) iPad and featuring a camera and mobile phone, it pioneered the multitouch finger-sensitive touchscreen interface of Apple’s iOS mobile operating system. By late 2009, the iPad's release had been rumored for several years. Such speculation mostly talked about “Apple’s tablet”; specific names included ''iTablet'' and ''iSlate''. The actual name is reportedly an homage to the Star Trek PADD, a fictional device very similar in appearance to the iPad. The iPad was announced on January 27, 2010, by Jobs at an Apple press conference at the Yerba Buena Center for the Arts in San Francisco. Jobs later said that Apple began developing the iPad before the iPhone, but temporarily shelved the effort upon realizing that its ideas would work just as well in a mobile phone. The iPad’s internal codename was K48, which was revealed in the court case surrounding leaking of iPad information before launch. Apple began taking pre-orders for the iPad from US customers on March 12, 2010. The only major change to the device between its announcement and being available to pre-order was the change of the behavior of the side switch from sound muting to that of a screen rotation lock. The Wi-Fi version of the iPad went on sale in the United States on April 3, 2010.〔 The Wi-Fi + 3G version was released on April 30.〔〔 3G service for the iPad in the United States is provided by AT&T and was initially sold with two prepaid contract-free data plan options: one for unlimited data and the other for 250 MB per month at half the price. On June 2, 2010, AT&T announced that, effective June 7, the unlimited plan would be replaced for new customers with a 2 GB plan at slightly lower cost; existing customers would have the option to keep the unlimited plan. The plans are activated on the iPad itself and can be cancelled at any time.〔(【引用サイトリンク】title=iPad with ultrafast wireless )〕 The iPad was initially only available for purchase on Apple’s online store and its retail locations; it has since become available through retailers including Amazon, Walmart, and network operators. The iPad was launched in countries including Australia, Canada, France, Germany, Japan and the United Kingdom on May 28. Online pre-orders in those countries began on May 10.〔 Apple released the iPad in Hong Kong, Ireland, Mexico, New Zealand and Singapore on July 23, 2010. Israel briefly prohibited importation of the iPad because of concerns that its Wi-Fi might interfere with other devices. On September 17, 2010, the iPad was officially launched in China. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「IPad (1st generation)」の詳細全文を読む スポンサード リンク
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