Transmitting Bits Across the Local Network Roadway

Transmitting Bits Across the Local Network Roadway

Back in Chapter 2, "A Network's Reason for Existence," you saw an example where Fred opened a file that sat on Wilma's disk drive. Later, Fred printed the file on the printer connected to Wilma's computer, and finally, Fred saved the file back on Wilma's disk drive. Figure 4-2 shows the process, in sequence.