At the simplest level, an operating system does two things: 1  It manages the hardware and software resources of the system. 2  It provides a stable, consistent way for applications to deal with the hardware without having to know all the details of the hardware.
The Rock â $3.5 million. While John Cena is the current star of WWE and has frequent appearances in the ring, the honor of highest paid WWE wrestler goes to The Rock, who makes roughly $3.5 million a year in addition to income from merchandise sales and PPV revenue.
Roger Federer is the number 7 of this list of top 10 highest paid athletes 2015. The 7 th of the top paid athletes earns total $56.2 million per year, $4.2 million as salary and $52 million as endorsements.