How is 'packet switching' defined?

Packet switching is a technique that fundamentally optimizes data transfer across networks by breaking down data into smaller, manageable packets. This method allows for more efficient use of available bandwidth and can minimize delays, as packets can be routed independently through the network. Each packet might take a different path to the destination, allowing the network to balance load and avoid congestion.

This approach contrasts with other methods such as circuit switching, where a dedicated connection is established for the entire duration of the communication, which can lead to inefficiencies if the transmitted data is sporadically used or unevenly spaced. Packet switching is also more adaptable in dealing with variable network conditions, enabling faster and more reliable communication even during network issues.

Therefore, the definition of packet switching as a technique that breaks data into packets for optimized transfer highlights its core function of enabling efficient, flexible, and robust communication in data networks.