Final answer:
A 'time-division multiplexing (TDM) network' refers to a synchronized group of participants with common timeslot boundaries, crucial for orderly and efficient data transmission.
Step-by-step explanation:
A time-division multiplexing (TDM) network is a group of participants, or terminals, in synchronization sharing a common understanding of timeslot boundaries. In a TDM system, any collection of at least two people who interact with some frequency and who share some sense of aligned identity can cooperate seamlessly because they conform to a predefined time structure. Every terminal in the network knows exactly when it can transmit and receive data, which is vital for maintaining order and efficiency within the network.