A/C Compressor Oil: Auto A/C compressor oil is the lifeblood of the a/c system. However, it's interesting to note that the oil in the A/C system is only there for the compressor. There are no other components that require internal lubrication; just the A/C compressor.
Ubuntu is a great operating system but the default desktop environment sucks. Ubuntu gnome is the perfect mix of the best operating system and the best desktop environment. I prefer to use it with the Arc gnome theme and the Super Flat Remix icon theme. Very good mix of gnome and ubuntu. The combination of the Ubuntu OS with the gnome desktop environment is outstanding.
A computer's operating system is its most important program. It is considered as trhe backbone of a computer managing both software and hardware device. Operating systems are responsible for each and everything from the control and allocation of memory to input from external devices and output to computer display. An operating system also plays a vital role in security.