The exchange of data between one thread or process and another either within the same computer or across a network. Common IPC mechanisms include pipes, named pipes, semaphores, shared memory, queues, signals, mailboxes, and sockets.

A protocol used by client applications that resides on the same node as the listener to communicate with the database. IPC can provide a faster local connection than TCP/IP.

A protocol used by client applications the reside on the same node as the listener to communicate with the database.

1) The process by which programs communicate data to each other and synchronize their activities. Semaphores, signals, and internal message queues are common methods of interprocess communication. 2) A mechanism of an operating system that allows processes to communicate with each other within the same computer or over a network.