Answer Posted / vasanth

unnamed pipe:
1)pipe is an ipc mechanism which is not having any name will be referred by the discriptors one for writing and another for reading.
2)pipe is created using pipe function.
int pipe(int filedes[2]);
3)communication between related processes.
4)it has only one fd.
5)unidirectional.
named pipe:
1)fifo is an ipc mechanism it can be said as named pipe.
2)fifo is created using mkfifo.
int mkfifo(const char *pathnam,mode_t mode);
3)communication between any two processes.
4)it has only two fd.
5)biidirectional.

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