On January 27, 2010 the late Steve Jobs took the stage at an Apple special event to introduce a new category of device called the iPad. 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 original iPad, code named K48 and model number iPad1,1, had a 9.7-inch screen at 1024768 and 132ppi, both for the Wi-Fi only model, and the Wi-Fi + 3G HSPA versions. It also packed in 802.11n Wi-Fi, Bluetooth 2.1 + EDR, aGPS, and absolutely no camera. It did include Apples first branded processor, the Apple A4 which combined a 800MHz ARM Cortex A8 and a PowerVR SGX535 graphics processor. The original iPad came with 16, 32, and 64GB storage options, and a 25 watt hour that let it run for an impressive 9 hours. Like all iOS and iPod devices of its time, the original iPad could connect to a Mac or Windows PC, and charge, via the traditional 30-pin Dock connector. Apple ported its iWork suite from the Mac to the iPad, and sells pared-down versions of Pages, Numbers, and Keynote apps in the App Store. Although the iPad is not designed to replace a mobile phone, a user can use a wired headset or the built-in speaker and microphone to place phone calls over Wi-Fi or 3G using a VoIP application.