Free Download Code The Hidden Language of Computer Hardware and Software Book in PDF written by Charles Petzold and Published by Microsoft Press, A Division of Microsoft Corporation, One Microsoft Way Redmond, Washington.
According to the Author, “Code rattled around in my head for about a decade before I started writing it. As I was contemplating Code and then writing it, and even after the book was published, people would ask me, “What’s the book about?” I was always reluctant to answer this question. I’d mumble something about “a unique journey through the evolution of the digital technologies that define the modern age” and hope that would be sufficient. But finally I had to admit it: “Code is a book about how computers work.”
As I feared, the reactions weren’t favorable. “Oh, I have a book like that,” some people would say, to which my immediate response was, “No, no, no, you don’t have a book like this one.” I still think that’s true. Code is not like other how-computers-work books. It doesn’t have big color illustrations of disk drives with arrows showing how the data sweeps into the computer. Code has no drawings of trains carrying a cargo of zeros and ones. Metaphors and similes arc wonderful literary devices but they do nothing but obscure the beauty of technology.
I want Code to be a book that makes you understand these things, not in some abstract way, but with a depth that just might even rival that of electrical engineers and programmers. I also hope that you might recognize the computer to be one of the crowning achievements of twentieth century technology and appreciate it as a beautiful thing in itself without metaphors and similes getting in the way. Computers are constructed in a hierarchy, from transistors down at the bottom to the information displayed on our computer screens at the top. Moving up each level in the hierarchy-which is how Code is structured is probably not as hard as most people might think. There is certainly a lot going on inside the modern computer, but it is a lot of very common and simple operations.
Table of Contents
- Best Friends
- Codes and Combinations
- Braille and Binary Codes
- Anatomy of a Flashlight
- Seeing Around Comers
- Telegraphs and Relays
- Our Ten Digits
- Alternatives to Ten
- Bit by Bit by Bit
- Logic and Switches
- Gates (Not Bill)
- A Binary Adding Machine
- But What About Subtraction?
- Feedback and Flip-Flops
- Bytes and Hex
- An Assemblage of Memory
- Automation
- From Abaci to Chips
- Two Classic Microprocessors
- ASCD and a Cast of Characters
- Get on the Bus
- The Operating System
- Fixed Point, Floating Point
- Languages High and Low
- The Graphical Revolution
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