In class on I went over many of the components of chapter 2.
I brought in a computer and took it apart to show the different components and how they go together

These are the following items that chapter 2 should tell you about and the things you can expect to see on a quiz and test.
 

• Processor (also called microprocessor or CPU, [Central Processing Unit, look at microprocessor for buying a computer to see why CPU isn't being used as much anymore.)
• System Clock (book)
• The processor breaks down to two parts
• ALU(book)
• Control Unit(book)
• Registers(book)
• Cache (the type of cache that goes in the Processor)
• You shoud know that the difference between a Celeron Processor and the more expensive Pentium processor is the Celeron processor does not have Cache memory inside the processor, but the Pentium processors do.
• Both processors can be the same speed but without built in Cache memory the Celeron has to go out to the motherboard for the next instruction which will slow down the fetch part of the instruction cycle.
• RAM - this has been discussed many times in this class
• ROM - Booting up the computer(book)
• CMOS - holds info about the configuration (page 2.15)
• Expansion slots and Expansion Cards -  I explained how these work together and what type of things you can add to your computer using the expansion slots. They are in the book.
• Serial Ports vs Parallel ports (book)
• Motherboards (book)
• Bus (book)
• Bays - Know the difference between these and the Expansion Slots, know what you need open to add things like a new video card, or modem, or CD-writer.
• Read the chapter and fill in the blanks above.