"To begin, the fundamental difference between digital and traditional media is rooted in microstructure: bits versus atoms. Processes that move physical atoms around are precisely the irreversible aspect of traditional work. According to very fundamental laws of physics, operations such as cutting, bonding, and mixing are irreversible. Mix black paint into white, and you've got grey for the duration. Crack a fine piece of laboriously refined jade work, and you have lost not only time but also expensive material—a rare configuration of atoms.

By contrast, the microstructure of the computer medium is bits: a specified arrangement of symbols. The computer is made out of atoms, to be sure, but its logic employs symbols that quantize the physical charges they represent—it obtains stable bits. Because any physical deviations caused by atoms get rounded and corrected, these symbols built on bits do not degrade. In the microstructure of the digital medium, arrangements and values can always be reconstructed; their previous states can be stored and recalled; additional instances and versions can be replicated."

From Abstracting Craft: The Practiced Digital Hand by Malcolm McCullough

HOMEWORK

Study

Continue and finish the study:

• Using two inputs
• Using two inputs two outputs
• Use AND or OR operation
• Make your own function for your led pattern
• document one of your study with Fritzing or images of drawing. Create a new file in your drive folder named "DigitalIO" and upload your code and the images.