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Consider this true scenario: Two teenagers are both hit by some very nasty, damaging computer viruses. One was a virus that took down his Windows desktop at random times. The other was a trojan, with a hacker at the other end trying to blackmail him for game CD keys. Neither of the teens had up to date anti-virus software. Only one had a firewall.

Fact: Teenagers often suffer numerous other problems - from corrupt systems that need to be restored, to having E-mail accounts stolen, to being impersonated on instant message chats.

Security experts know that home...

This unique book uses full color illustrations to help readers understand the principles behind all computer programming. It is the book for beginners to read before they start learning computer programming. It offers non-programmers a basis for understanding what programmers do. The author Daniel Appleman is well-known for his bestselling books on VB.