Computer Operating Systems

1.   Discuss research projects

2.   Review Quiz 3

3.    Review Chapter 4 Concepts

     a)  AC vs. DC current (rectifier / transformer )
            AC current has hot | neutral | ground (optional) lines
                short circuits occur when uncontrolled electricity flows from hot to neutral or hot to ground,
                skipping the devices that provide resistance
             
                In DC current, the line connected to the negative terminal is sometimes called the ground
               but there are only two lines
             
     b)   Common electrical components  (see p.135-136 in the text)
                  conductors, insulators, semiconductors, transistors, capacitors, diodes

    c)     Protecting a computer system
            Electrostatic discharge (ESD) see p.138-139
            Electromagnetic interference (EMI)
            Surge protection, p.139-143
                   surges
                   spikes
                   brownouts
                   surge protectors / power conditioners
            UPS

     
       d)  Case/motherboard form factors 

      e) Power management

4.  Team contest on A+ in Depth, chapter 4 questions, p.172-173

5.  Lab Work: Inspect CMOS settings for Power Management
                          Meyers Multimeter Lab 6.2 (Meyers p.71-74), and
                           CPU Labs 2.1 - 2.2 (Meyers, p. 14-20)
     (time permitting)

The following links may be useful for the Meyers CPU labs:

MCMCSE Study Guide- Processors

See Geek.com (http://www.geek.com/procspec/procspec.htm) for a near-complete listing of Intel CPUs.
See Erols com (http://users.erols.com/chare/sockets.htm) and CPU Socket and Slot Criteria for pictures and info about CPUs, sockets, and slots.

Homework:

Review/study for A+ in Depth chapter 4 quiz, next week

Begin reading A+ in Depth Chapter 5 on Motherboards, study the material on CPUs and
chipsets from page 175-202.  Complete Meyers Labs 2.l - 2.2, if possible, using Internet
resources to look up information on CPU types, eternal data bus, address bus, and socket form factors.