Linux Windows and Mac are all Operating Systems
An operating system (OS) is a software program that manages the hardware and software resources of a computer. The OS performs basic tasks, such as controlling and allocating memory, prioritizing the processing of instructions, controlling input and output devices, facilitating networking, and managing files.
i got this info from http://en.wikipedia.org/wiki/Operating_system
20/06/2006
In some cultures, what I do would be considered normal