Identification and Background
The first iPad model was announced in January 2010 and was released April 3 of the same year. The device resembled a large iPod Touch, sporting a 9.7" LED-backlit display, and featuring multi-touch capabilities. The first models launched connected to the internet solely via a Wi-Fi connection, but a second model released on April 30 2010 featured the ability to connect to a 3G network with a monthly subscription through a wireless provider. Like the iPod Touch and iPhone that came before it, the iPad used Apple's iOS operating system and ran iPhone apps.
The iPad Wi-Fi and iPad 3G are easily distinguished from each other by features on their outer cases. The 3G model features a black bar across the top of the rear case for the 3G antenna, as well as a MicroSIM slot.
Announce date: January 27, 2010
Color display: 9.7 inches (25 cm) LED backlit in-plane switching LCD, made by Innolux, a subsidiary of Foxconn
Processor: 1 GHz Apple A4 system-on-a-chip
Graphics: 1024×768 pixel (XGA resolution), 20cm × 15cm, 132ppi
RAM: Unspecified at launch time
Storage: 16, 32 or 64 GB flash memory
Wireless: Integrated 802.11n and Bluetooth 2.1 + EDR
3G Internet: 7.2 Mbit/s HSDPA
Battery: Built-in lithium-polymer 25 W·h (10 h usage, 1 month standby)
Weight: 1.5 pounds (680 g), 1.6 pounds (730 g) (3G Model)
Dimensions: 9.56 inches (24.3 cm) x 7.47 inches (19.0 cm) x 0.5 inches (1.3 cm)