单选题
Edge computing is a (71)_______，open IT architecture that features decentralized processing power,enabling mobile computing and Internet of Things(IoT)technologies．In edge computing，data is processed by the (72)_______ itself or by a local computer or server,rather than being transmitted to a data center．Edge computing enables data-stream acceleration，including real-time data processing without latency．It allows smart (73)_______ and devices to respond to data almost instantaneously,as its being created，eliminating lag time．This is critical for technologies such as self-driving ears，and has equally important benefits for business．Edge computing allows for efficient data processing in that large amounts of data can be processed near the source，reducing (74)_______ bandwidth usage．This both eliminates costs and ensures that applications can be used effectively in (75)_______ locations．In addition，the ability to process data without ever putting it into a public cloud adds a useful layer of security for sensitive dat