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My car has computers????

A Technician must be skilled at computer networking.
Modern vehicles contain more computers than the first ship that went to the moon. Some vehicles have up to 100 different computers in them! A lot of these computers work together to accomplish a single goal, so when something goes wrong performing that single goal, the fault could be in any one of the functioning computers. This makes modern computer systems extremely difficult to diagnose. Knowing how these computers network with each other is a big part of modern vehicle repair. Knowing how to properly program these computers is another necessity.