What exactly are BMW ICOM A2 B C?

BMW ICOM A2 B C support BMW cars till 2013 calendar year and performs on BMW & MINI full system diagnose and offline programming. Obviously, you can see BMW ICOM is a specific auto diagnostic tool for BMW cars.

Do you know what A2, B and C stand for? In some extent, it is similar to some auto diagnostic tools. A2 is behalf on supports MOST, D-CAN and K-CAN protocols; B stands for it can diagnose by MOST bus, and be connected to A-interface via USB port; C represents 20-pin cable for old models.
BMW ICOM A2 B C do well in the diagnosis of BMW vehicles. My friend had bought one and make highly price of its quickness and accuracy. Because he is an auto enthusiast, he often uses some other obd2 tools and shares its experience with me. Thus I have a basic idea of BMW ICOM and some repair and maintenance information.