Codes and Ciphers pdf epub mobi txt 電子書下載 2024

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Gilbert, Adrian

2009-7

$ 7.85

9781554075737

圖書標籤: 計算機

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发表于2024-09-20

Codes and Ciphers epub 下載 mobi 下載 pdf 下載 txt 電子書下載 2024

Codes and Ciphers pdf epub mobi txt 電子書下載 2024

圖書描述

The enduring appeal of spies and their technology, codes and mysterious ways are explored in this engaging series of four colorful books. Each explores a different aspect of the spy trade, interspersing historical tidbits with tales of spies from popular culture and contemporary movies. Other titles in this series include: "Secret Agents," "Spy School," and "Top Technology." "Codes and Ciphers" covers everything from Caesar's alphabetic substitution system and Morse code to the Enigma machines and microdots of World War II. Sidebars explain how to create a cipher, how to craft invisible ink messages using wax and crayons and how to make a one-time pad.

Codes and Ciphers 下載 mobi epub pdf txt 電子書