Mobile computing has revolutionised how we interact with information and the world around us$.$ As devices shrink and capabilities expand, the challenges and opportunities for designing engaging and effective mobile experiences intensify. Discuss the following details:

a$)$ The growth and demand of mobile computing in the digital world.

b$)$ The key considerations for mobile computing such as factors ergonomics, user interface, and accessibility. Provide ONE example, how do these considerations impact the user experience and overall success of mobile computing platforms?

c$)$ The impact of emerging technologies like augmented reality, artificial intelligence, and $5$G networks on the future of mobile computing experiences.