Operating Systems
作者：Dajour Thomas
1. New node
2. 90 % What Percent Uses Windows
3. Linux:Open,Source,Free
4. Apple,OSX,Leopard
5. New An operating system (OS) is an interface between hardware and user which is responsible for the management and coordination of activities and the sharing of the resources of the computer that acts as a host for computing applications run on the machine.
6. Cell Phone Operating Systems
