A connected car is a car that can communicate bidirectionally with other systems outside of the car. This connectivity can be used to provide services to passengers (such as music, identification of local businesses, and navigation through a journey planner) or to support or enhance self-driving functionality (such as coordination with other cars, receiving software updates, or integration into a ride hailing service). For safety-critical applications, it is anticipated that cars will also be connected using dedicated short-range communications (DSRC) or cellular radios, operating in the FCC-granted 5.9 GHz band with very low latency.
History
General Motors was the first automaker to bring the first connected car features to market with OnStar in 1996 in Cadillac DeVille, Seville and Eldorado. OnStar was created by GM working with Motorola Automotive (that was later bought by Continental). The primary purpose was safety and to get emergency help to a vehicle when there was an accident. The sooner medical helps arrives the more likely the drivers and passengers would survive. A cellular telephone call would be routed to a call center
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Source: Wikipedia
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