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Chapter 28. Understanding Input and Outp... > Working with External Interfaces

Working with External Interfaces

The most obvious data input and output interfaces are those whose ports are located on the outside of your Mac. Modern Macs have a number of built-in interfaces you can use to move data into or take data out of the machine.

NOTE

All data that travels around your Mac eventually moves from one device to another. When data “crosses over,” it is said to have crossed a bus. A data bus is simply a channel through which data flows. Many buses exist inside your Mac, and all devices have at least one bus (the point at which data enters or leaves the device).



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