Book Image

Mastering Blockchain

Book Image

Mastering Blockchain

Overview of this book

Blockchain is a distributed database that enables permanent, transparent, and secure storage of data. The blockchain technology is the backbone of cryptocurrency – in fact, it’s the shared public ledger upon which the entire Bitcoin network relies – and it’s gaining popularity with people who work in finance, government, and the arts. Blockhchain technology uses cryptography to keep data secure. This book gives a detailed description of this leading technology and its implementation in the real world. This book begins with the technical foundations of blockchain, teaching you the fundamentals of cryptography and how it keeps data secure. You will learn about the mechanisms behind cryptocurrencies and how to develop applications using Ethereum, a decentralized virtual machine. You will explore different blockchain solutions and get an exclusive preview into Hyperledger, an upcoming blockchain solution from IBM and the Linux Foundation. You will also be shown how to implement blockchain beyond currencies, scability with blockchain, and the future scope of this fascinating and powerful technology.
Table of Contents (20 chapters)
Mastering Blockchain
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Internet of Things


The Internet of Things or IoT for short has recently gained much traction due to its potential for transforming business applications and everyday life. IoT can be defined as a network of computationally intelligent physical objects that are capable of connecting to the Internet, sensing real-world events or environments, reacting to those events, collecting relevant data, and communicating it over the Internet. This simple definition has huge implications and has led to exciting concepts, such as wearable's, smart homes, smart grids, smart connected cars, and smart cities, that are all based on this basic concept of an IoT device. After dissecting the definition of IoT above, there are four functions that come to light as being performed by an IoT device. These include sensing, reacting, collecting, and communicating. All these functions are performed by using various components on the IoT device.

Sensing is performed by sensors. Reacting or controlling is performed by...