1 | Multitasking - Executing many processes on a single processor. Usually done by time-slicing the execution of individual processes and performing a context switch each time a process is swapped in or out - supported by special-purpose hardware in some computers. |
2 | Network - A physical communication medium. A network may consist of one or more buses, a switch, or the links joining processors in a multicomputer. |
3 | NFS - Network Filing System is a protocol developed to use IP and allow a set of computers to access each other's file systems as if they were on the local host |