This unit provides a short history of the computer, introduces the four major components of a computer, and compares computer "brains" with the human brain.
This unit teaches students about electricity, electric circuits, and the difference between mechanical and nonmechanical (transistors) switches.
This unit explores the differences between the decimal and binary number systems and how the information is represented and processed using binary code.
This unit investigates how microprocessors process information, demonstrates the size and the complexity of their circuitry, and explains how they are manufactured.
This unit defines the Internet, then explains the World Wide Web, hypertext, URLs, packets, bandwidth, connection choices, search engines, and the need to critically evaluate the quality of the information found on the Web.
This unit discusses the impact technological advances have on people's lives, with examples from the past and current day. Several readings provide insights on ways the digital age is already affecting our lives, the accelerating rate of change, and what we might expect to see in the near future.
The Journey Inside℠ uses a contextual glossary with new terms linked to their definitions. Clicking on an underlined word in lessons opens a small window containing the word's definition. The glossary includes all the underlined terms.