In this learning activity you'll discover the disconnected nature of the HTTP request-response model including some methods of persisting state and the security implications.

Students observe the operation of a tri-state buffer used in digital electronics. A brief quiz completes the activity.

Students analyze the eight single variable Boolean theorems and their expressions.

Learners examine the Karnaugh map for a three-variable system. Several examples are given.

Students examine the procedure to measure current with an analog ammeter. The use of Function and Range switches is explored along with reading the needle position on the meter scale. A brief quiz completes the activity.

This learning object shows how the shape of a stain defines the angle of impact. In general terms the more circular the stain, the more perpendicular will be the angle at which it struck the surface. The more elliptical the shape of the stain, the more acute the angle will be. With practice and experience, the analyst can recognize the general angle of impact based solely on the shape of the stain.

Learners examine the function of the analog wattmeter to measure true power, how it is connected in a circuit, and how the internal components develop a measurement. A brief quiz completes the activity.

In this learning activity you'll practice converting between hexadecimal and decimal and between hexadecimal and binary numbers.

Students read information about basic logic gates including the gates' names, symbols, Boolean expressions, pronunciations, and truth tables. They then complete a matching exercise.

Digital Divide - Internet and Net Geners of the Net generation.

Test your knowledge of multimedia acronyms commonly used in the computer industry.