Provides an introduction to wireless networking, mobile device hardware and software architectures as well as the application of security fundamentals for mobile computing systems. Students will be able to describe user associations and routing in a cellular/mobile network, interaction of elements within the cellular/mobile core, and end-to-end delivery of a packet and/or signal and what happens with the hand-off at each step along the communications path. They will be able to explain differences in core architecture between different generations of cellular and mobile network technologies.