This document provides a history of mobile computing from early portable computers in the 1980s to recent e-readers, smartphones, and tablets. It outlines the evolution of key devices including the Osborne 1, Apple PowerBook, Palm Treo, BlackBerry, iPhone, and Google Chrome OS. The document also discusses how mobile phone technology enabled new forms of computing through SMS and early app-like messengers. It traces the development of ebooks from the Rocket eBook to the Kindle and how this expanded mobile computing opportunities.