Meaning – The term packet, refers to a sequence of binary digits, including data and control signals, that is transmitted and switched as a composite whole. The data, control signals, and, possibly, error control information are arranged in a specific format.
Similar to a real-life package, each packet includes a source and destination as well as the content (or data) being transferred. When the packets reach their destination, they are reassembled into a single file or another contiguous block of data.
The payload section of a packet contains the actual data being transferred. This is often just a small part of a file, webpage, or other transmission, since individual packets are relatively small.
Example of usage – “Packets are intended to transfer data reliably and efficiently. Instead of transferring a large file as a single block of data, sending smaller packets helps ensure each section is transmitted successfully.”