Inheritance: Inheritance allows us to define a class in terms if another class, which makes it easier to create and maintain an application. Inheritance allows to reuse the code functionally and fast implementation time. Multithreading : Multithreading is the ability of a program to manage its use by more than one user at a time and to even manage multiple requests by the same user with out having to have multiple copies of the programming running in the computer. Watchdog timer: WDT is a piece of hardware that can be used to automatically detect software anomalies and reset the processor if any occur.