The first Android device was the T-Mobile G1, and the Linux-based Android operating system powered it. This smartphone is also known as the HTC Dream outside of the United States.
The first Android phone, the G1,released in 2008 in the United States, three years following Google's acquisition of the mobile software company Android Incorporated, featured a swing-out keyboard tray to accommodate the operating system installed on it. The version of Android OS installed on the phone, 1.0, did not feature an on-screen keyboard; however, like later Android phones, the G1 had a touchscreen. Also like later Android phones, the G1 was able to download apps from Google to supplement its functionality. Back in 2008, the app store was called the Android Market rather than Google Play.