Mobile computing allows users to access network services anywhere through mobile devices like smartphones and tablets connected to wireless networks. It involves mobile communication infrastructure, portable hardware devices, and software applications designed for mobility. The document outlines the key benefits of mobile computing like connectivity and productivity. It also discusses wireless network technologies, limitations around power and security, and applications in fields like real estate, law, and emergency services. Current trends include advances in artificial intelligence, internet of things, 5G networks, mobile payments, and e-commerce. While limitations remain, mobile computing continues to improve with technological progress.