Classic Bluetooth was famous for its short distance connectivity in a cellular phone. This communication was a breakthrough over conventional IR communication as it did not require line-of-sight communication. The result was marvelous. It got famous among the cellular phone users and almost every vendor started to support Classic Bluetooth. The idea of the Bluetooth was simple enough for any lay person. You did not require any technical knowledge in order to send files and pictures to someone else's device. All you need to do is to enter the same passcode on two devices before pairing them.
It is not untrue to say that the success of Classic Bluetooth was marked by cellular industry. Users of Bluetooth did not require any additional Bluetooth hardware, rather their personal phones contained the built-in facility to connect to another Bluetooth device. Before the concept of Bluetooth Low Energy, the main hardware for Bluetooth communication was a cellular phone...