Labels:airplane | awning | car | chair | crt screen | cushion | fence | flower | hakham | keyboard | laptop | monitor | mouse | road | seat | sky | stairs | stairway | windowpane | workwear OCR: 2 5 4 SECTION A CHAPTER system does not need to wait for them. Instead, the system moves on to FIGURE 5-11 send packets from other messages. The end result is steady stream Packet switching networks data (Figure 5-11). (bottom) provide more effi- Each circuit dedicates cient communications system an entire channel to than circuit switching networks one receiver sender and one (top) JCLICK TO START A single line can carn packets irom many devices CLICK TO START How are packets routed to their destinations? Every packet that travels over network includes the address of its destination device similar to the way letter contains the address of house or mailbox Communications protocols specify the proper format for addresses within network When packet reaches a network node, routing device exam- ...
