Ideas
A look into the modern Super Computer who knows everything and how it crawls the web to collect information
Idea 2: Wikipedia - the biggest book in the world
Talk about Wikipedia - the book written by thousands of people - create a new article real time. Who knows more - Wikipedia or Super Computer?
Idea 3: Security: privacy and encryption
Peter needs to pass a map where the treasure is to his friend, so he sends a mailman. But there are pirates on the way who steal this information. What can Peter do?
Idea 4: How computer works
Have kids play main computer components - CPU, mouse, monitor. Have them simulate calculator application by moving a mouse, sending interrupts to the processor and moving the mouse pointer on the screen. Start with the sleeping mode :)
Idea 5: Algorithms
Give numbers to kids and have kids sort themselves