# 2 Signals

## 2.1 Introduction

This section discusses methods of representing data as it travels from device to device, and some of the processes acting on it during its journey. You will be introduced to a way of expressing large numbers using a method known as scientific notation.

OpenLearn - IT: device to device communication
Except for third party materials and otherwise, this content is made available under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence, full copyright detail can be found in the acknowledgements section. Please see full copyright statement for details.