Mobile computing encompasses the latest communication technologies, mobile devices embedded with software with communication capabilities that enable wireless connectivity to the subscribed services anytime, anywhere. Mobile computing allows portable devices capable of transmitting voice, data, and multimedia using ad hoc or infrastructure networks using the standard communication protocols. With the emergence of smartphones, most people spend much time with their smartphones in every aspect of day-to-day life. Nowadays, the explosive growth of mobile applications has revolutionized the communication landscape through different categories of applications on smartphones and tablets. Android and iOS are widely used smartphone platforms, providing various sophisticated applications for their users, which enforce the demand for mobile computing. Mobile computing provides more potential benefits to applications involving emergency services, web access, global communication, location-aware services, transportation, banking, medical, and entertainment. Mobile computing provides more opportunities for industries and businesses.