Purpose: Inter-process communication (IPC) within the same system.
Functionality: Unidirectional data flow, like a virtual pipeline.
Descriptors: Two file descriptors, one for reading and one for writing.
Requirement: Parent-child relationship between processes.
Socket :
Purpose: Communication between processes on different systems connected over a network (including the same system).
Functionality: Network protocol-based communication (TCP, UDP). Sockets allow data to travel back and forth between connected processes, enabling two-way communication
Descriptors: One file descriptor for read/write, one for network connection.
Flexibility: Independent connection/disconnection of processes.
