- 本カテゴリの商品を2500円以上購入で買取金額500円UPキャンペーン対象商品です。商品出荷時に買取サービスでご利用いただけるクーポンをメールにてご案内させていただきます。 詳細はこちら (細則もこちらからご覧いただけます)
Code (英語) ペーパーバック – 2000/10/11
Kindle 端末は必要ありません。無料 Kindle アプリのいずれかをダウンロードすると、スマートフォン、タブレットPCで Kindle 本をお読みいただけます。
What do flashlights, the British invasion, black cats, and seesaws have to do with computers? In CODE, they show us the ingenious ways we manipulate language and invent new means of communicating with each other. And through CODE, we see how this ingenuity and our very human compulsion to communicate have driven the technological innovations of the past two centuries.
Using everyday objects and familiar language systems such as Braille and Morse code, author Charles Petzold weaves an illuminating narrative for anyone who’s ever wondered about the secret inner life of computers and other smart machines.
It’s a cleverly illustrated and eminently comprehensible story—and along the way, you’ll discover you’ve gained a real context for understanding today’s world of PCs, digital media, and the Internet. No matter what your level of technical savvy, CODE will charm you—and perhaps even awaken the technophile within.
Charles Petzold has been writing about Windows programming for 25 years. A Windows Pioneer Award winner, Petzold is author of the classic Programming Windows, the widely acclaimed Code: The Hidden Language of Computer Hardware and Software, Programming Windows Phone 7, and more than a dozen other books.
The book is basically about how computers work and it's written in a very logical way. The author starts out with the most basic electrical circuit composed of a battery, a switch and a lightbulb and explains how it works. Next, he adds an electro magnet to it thus introducing us to relays. After that, he proceeds to combine those elements in such ways that we get an adding machine, a counter, selectors etc. Next, we build a processor and memory for it, and this is basically a computer. Of course there's plenty of supporting material. You'll very rarely have a moment of "Wait, I don't get that", and this is a big plus. The book does unfortunately get a little messy in its final chapters, the author kinda skims through some advanced subjects pretty quickly (like sound, images, etc). All in all, this book reads as an interesting story, not as your standard dry and boring textbook.
Don't pick this book up if you're strongly inclined towards humanitarian sciences and absolutely hate math, physics and logic, you'll drop it as soon the author introduces numerical systems other than decimal, and this is what the book uses a lot in subsequent pages. For all others, get this book and satisfy that geek inside you.
The author starts by asking the reader how they would go about communicating with a friend at some distance with only a flashlight. From such a basic problem starting point the author introduces ways in which people have encoded information and how efficiently that information is encoded. The reader learns about morse code and braille. Then bits are introduced and the author shows the reader how the base of a number system is quite arbitrary and then introduces ideas in binary. The reader is introduced to basic Boolean logic and how information can be encoded in binary very naturally. The author then goes to show how one can build adding machines from basic logic devices and then introduces complement arithmetic to show how subtraction can be done using a binary adding machine. The author then moves on to some basic circuit elements and shows how latches can be made to store bits. From latches the author moves on to flip flops and discusses how a clock can be used to sequence logic. The author then gets into registers and basic computer architecture. The reader is shown some early chip designs and what functions they included. In the process of learning Von Neumann architecture we learn about memory, the bus, the program counter and eventually move in to operating systems. After aspects of that are introduced the reader learns about fixed and floating point numbers as well as computer languages and compilers. Eventually the author introduces how graphical interfaces were developed such that computers became interactive devices for the users rather than pure computational devices.
I read this book while taking a course on basic computer architecture so I had the fortune of having two sources for instruction. In reading this alongside/after a more formal course I feel like the material of the course is slightly more easily absorbed as this book brings life to what can sometimes be a terse subject. Definitely think it can be read on its own or as a intro to what can become a very difficult subject very quickly.