Code: The Hidden Language of Computer Hardware and Software

Code is a classic guide to how computers work, updated with new chapters and interactive graphics. It teaches us how many unseen layers there are between the computer systems we look at every day and the magical silicon rocks that we infused with lightning and taught to think.

Format: Paperback / softback
Length: 480 pages
Publication date: 31 August 2022
Publisher: Pearson Education (US)

Computers are an integral part of our daily lives, present in a wide range of devices such as laptops, smartphones, cars, televisions, microwave ovens, alarm clocks, and robot vacuum cleaners. While these devices make our lives easier, it is often frustrating when they malfunction. In his book, "Code: The Hidden Language of Computer Hardware and Software," Charles Petzold takes readers on a journey into the secret inner life of computers. This revised edition, updated for the modern age of computing, is a captivating and accessible guide that unravels the mysteries of these devices.

Petzold's writing is cleverly illustrated and easy to understand, making it accessible to a wide audience. He begins the book with a story that helps to illustrate the concepts he discusses later. This story, about flashlights, black cats, seesaws, and the ride of Paul Revere, serves as a metaphor for the underlying principles of computing. Through this analogy, Petzold explains how computers work by performing basic operations such as addition, subtraction, and comparison.

The book then delves into the bit-by-bit and gate-by-gate construction of the central processing unit (CPU), which is the heart of every smart device. Petzold explains how the CPU combines the simplest of basic operations to perform the most complex of feats. He also discusses the role of memory, input/output devices, and other components in a computer system.

One of the most interesting aspects of "Code" is its exploration of the history and evolution of computing. Petzold traces the development of computers from the early days of punch cards and magnetic tape to the modern era of smartphones and cloud computing. He discusses the contributions of various inventors, engineers, and programmers who have shaped the technology we use today.

In addition to its technical content, "Code" also delves into the social and cultural implications of computing. Petzold discusses the role of computers in shaping our society. He explores how computers have enabled us to communicate with each other, access information, and perform complex tasks that were once impossible. However, he also raises concerns about the impact of computers on privacy, security, and the environment.

Overall, "Code: The Hidden Language of Computer Hardware and Software" is a must-read for anyone who wants to understand how computers work. It is a captivating and accessible guide that provides a deep understanding of the inner workings of these devices. Whether you are a computer enthusiast, a student, or simply someone who is curious about the world around you, this book will provide you with a wealth of knowledge and insight.

Weight: 688g
Dimension: 153 x 227 x 22 (mm)
ISBN-13: 9780137909100
Edition number: 2 ed