The document contains 8 lessons that introduce basic concepts about computers and the Internet. It covers early calculating machines, computer components and their functions, input/output devices, storage types, uses of microprocessors, ways computers output information, limitations of artificial intelligence, components of the Internet, factors affecting webpage loading, wireless connections, and information about the creator of COBOL programming language Dr. Grace Hopper.

1. Introduction to computers<br />Lesson 1<br />What was the first machine that could add, subtract, multiply, and divide?

2. the abacus

3. the mechanical calculator