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Introduction

Once upon a time, in a not too distant past, knowledge workers entered information into large stationary computers connected to even larger super computers. As time passed, computing power increased while physical size of computers decreased. Computers are now so small they fit inside your shirt pocket, or even in your eyewear. If you are holding this book, then chances are pretty high that you carry an Internet-connected computer in your pocket. In fact, you may even be reading this introduction on a smartphone (if you are, I hope you have an excellent vision health plan).

We live in an always-on, connected world and we expect our ...

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