“I remember coming across this book quite by accident while browsing through a book store while on a business trip. It looked interesting so I picked it up and was pleasantly surprised at how incredibly cool, and informative, book is.
Check out this list of chapters:
3. Braille and Binary Codes
6. Telegraphs and Relays
7. Our Ten Digits
8. Alternatives to Ten
18. From Abaci to Chips
Did you ever wonder what those numbers and bars mean on 35mm film roll? (Do you remember film?) Ever wonder how bar codes work, and how they came about? All this and more in a good mix of historical background, application, and - yes - a good bit of math to go along with everything.
If you are a geek (said in the most loving way possible), or have a geek in the house, you really should get this book.”