Android 1.0 Emulator Exclusive -
For the purist, you can run the original 2008 SDK bundle without Android Studio.
Believe it or not, some banks and government agencies still have legacy Android apps that were written in 2009 and never updated. If you need to debug an issue on a "frozen" device, the emulator is safer than finding a physical G1 with a swollen battery. android 1.0 emulator
: You can find older releases, including the version 1.0 SDK, on the Android SDK Archives. For the purist, you can run the original