(The full name of ADB is AndroidDebugBridge, which is a tool in Android SDK. With this tool, you can directly operate and manage Android emulators or real Android devices (such as G1 mobile phones). The main functions of adb.exe are:
Run the shell of the device (command line)
Manage port mappings for emulators or devices
Uploading/downloading files between computers and devices
ADB is a client server program for installing local apk software to the simulator or android device. The client is the computer you use to operate, and the server is the android device.)