Instructor Tip When gaining attention and establishing common ground, ask questions such as, “Who here has experience working on computers?” For a WIIFM statement, share a real-life experience in which knowledge of this topic made your job easier: For example: “When working on computers, one of the most important things you need to know is which component is which once you open it up. If you’re having problems with the video card, there’s no point in trying to repair the network interface card. In this topic, you’ll learn about some of the tools we use, the internal components of the PC, and many of the connectors.” Instructor Tip The pre-tests are designed to give you an indication of how much prior knowledge your students have brought to this class. They are meant to be used for class discussion, rather than as real tests. As such, only a few questions are included in each test and the “correct” answers are not provided. You can use pre-tests to gain a rapport with your students and measure how much time you might need to take on a particular subject.
Static electricity, and therefore the risk of ESD, is much more prevalent in dry, cool environments.
Discussion Point USB Standard USB, designed by Intel, runs at about 1.5 Mbps. USB2, a newer standard, is backwardly compatible to standard USB, but promises to run at 480 Mbps. For a variety of reasons, USB2 is unlikely to reach these speeds, and it does not perform to FireWire (IEEE 1394) standards.
Discussion Point Registered jacks RJ-11 and RJ-45 are just two of the many RJ specifications listed in the U.S. Federal Communications Commission Rules and Regulations, 47CFR (Code of Federal Regulations), Part 68. The number following the “RJ” is assigned by the FCC and indicates the usage of the jack. In Europe, these connectors are generally called “Western Electric” or “Western” plugs and sockets. In North America, they are called “RJ” or “modular” connectors.
Many video cards come with multiple connectors. These are to support video input/output or for a second monitor.
The RJ-11 connectors on a modem look very similar to the RJ-45 connectors on a network card. Compare the graphic of the RJ-45 connector to the RJ-11 connector—could you tell the difference?
Serial ports are one of the few connectors on modern systems that were also used in the first PCs decades ago!
Discussion Point Motherboard tracings Motherboards today can contain as many as seven layers of tracings sandwiched inside the board. Once a motherboard is cracked, it cannot be repaired.
Safety Alert Never open up a power supply. There are no serviceable parts (except the cooling fan) inside a power supply that are covered within the scope of this coursework. Like a monitor, a power supply contains a high voltage capacitor that can hold high voltage for a very long time after being powered down.
There are a number of writable DVD standards with names like DVD-RW or DVD+ RW. The DVD industry is still fighting to see which will become dominant.