The advantages and security risks of "Smart" uses of technology in buildings, transportation, and grids are discussed.

The Domain Name System (DNS) and its relationship to IP addresses is explained and illustrated. The article also discusses the anatomy of a domain name and issues of DNS spoofing.

Symmetric encryption techniques are explained including the Vigenere Cipher and AES-128.

Julius Caesar encrypted messages two thousand years ago. By knowing the techniques of deciphering a code--frequency analysis, known text, and brute force--one can begin to understand the three key aspects of data encryption, decryption,...

Understanding the run efficiency time of algorithms and why timing is important.

Discusses how to measure the efficiency of an algorithm.

The use of formal reasoning to determine if an algorithm is correct.

Practice programming problems using procedures with return values.

Find out what phishing attacks are and how to avoid them.

Practice defining a procedure with custom programming.

Learn about the features that increase the scalability of the Internet.

Explore examples of patterns that we can find in the data around us with these practices problems.

Find out what it means for a piece of infrastructure to be smart?

Learn how social media impacts our use of technology.

Learn about rogue access points to understand wireless internet access.