After you have read this chapter, you should be able to:

1. Describe the four basic types of system units.

2. Discuss how a computer uses binary codes to represent data in electronic form.

3. Describe each of the major system unit components.

4. Discuss microprocessors, including specialty processors.

5. Describe the different types of memory.

6. Discuss expansion slots and boards.

7. Describe the five principal types of expansion buses.

8. Discuss the four standard ports.