An Open Systems Interconnection (OSI) network layer transmission unit that consists of binary information representing both data and a header containing an identification number, source and destination addresses, and error-control data.
— Computer ScienceA unit of information transmitted from one computer or device to another on a network.
— Computer ScienceLogical grouping of information that includes a header containing control information and (usually) user data. Packets most often are used to refer to network layer units of data.
— Computer Science