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C D E
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FIGURE 2-13 Do you recognize these components inside your PC
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2: The Visible PC
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A ___________________________ B ___________________________ C ___________________________ D ___________________________ E ___________________________ F ___________________________ G ___________________________ H ___________________________ I J ___________________________ ___________________________
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Step 17 Now it is time to follow your notes (and lab steps) in reverse order to reassemble the system, or nd a large box to store the disassembled computer in until your next lab session
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Ben has just moved his PC to his new of ce After hooking up all the cables, he turns on the system, and when it asks for his password, the keyboard will not respond What could possibly be wrong __________________________________________________________________ __________________________________________________________________
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Theresa has just nished the production of a PowerPoint presentation detailing the design of a new of ce building She has included some cool 3-D animations in the presentation to really show off the design When she attempts to save the presentation to a oppy disk, an error occurs What might have caused the error Do you have any suggestions that may solve the problem __________________________________________________________________ __________________________________________________________________
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Cal has purchased a new set of speakers for his PC The old ones worked just ne, but he wanted more power and a subwoofer When he plugged in the new speakers, they would not work Power is on to the speakers What is the rst thing you would check __________________________________________________________________ __________________________________________________________________
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Key Terms Quiz
John had a new modem installed in his computer at a local mom-and-pop shop, where he watched as the system successfully connected to his AOL account When he got home and tried, however, he couldn t get a dial tone He calls you to ask for help What should you suggest that he check rst __________________________________________________________________ __________________________________________________________________
Raylene removed the case of her PC to check the type of RAM she has installed When she put the case back on and tried to start the PC, she got a message that there s a problem with her hard drive What is a good reason why this might have happened __________________________________________________________________ __________________________________________________________________
Key Terms Quiz
Use the following vocabulary terms to complete the sentences that follow Not all of the terms will be used
key key
CTRL
data cable electrostatic discharge (ESD) female connector function key LED male connector power cable ribbon cable
1 2 3 4 5
The modern hard drive may utilize technology that requires a at, 80-wire _______________ When a oppy or CD/DVD drive is being accessed, a(n) _________________ on the face of the drive lights up A keyboard shortcut for saving a document is to press the ________________ in combination with the S key Anti-static wrist straps and anti-static bags are used to protect devices from _______________ damage Pressing the F1 ___________________ often calls up a program s Help feature
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Lab Exercises
Understanding CPUs
301 Exploring CPU Characteristics 302 Recognizing CPU Sockets and Slots Lab Analysis Test Key Terms Quiz
Copyright 2007 by The McGraw-Hill Companies Click here for terms of use
3: Understanding CPUs
One of the devices associated with the personal computer, the central
processing unit (CPU), has arguably gone through the most advances of any device since its inception in the late 1970s The CPU forms the brains of the computer system and utilizes hundreds of millions of transistors to process billions of bytes of information per second A competent tech can quickly determine what CPU is well matched for the application and select the proper motherboard, socket, and chipset to support that CPU The CPU can then be optimized by con guring the proper clock speed multiplier, providing adequate cooling, and ensuring ample power In this set of lab exercises, you ll explore current CPU types, identifying their many characteristics including form factors, sockets, slots, and fan/cooling assemblies
S 30
MINUTES
Lab Exercise 301: Exploring CPU Characteristics
There you are, innocently strolling down the hall at work, following the smell of freshly brewed coffee, when you re ambushed by Joe the accountant, brandishing a CPU/fan unit He wants to replace the CPU in his computer with this new one he bought on eBay, and he wants you to help him When you re the resident computer tech geek, your coworkers will expect you to be able to deal competently with a situation like Joe s
Staying on top of the many developments in CPU technology can be challenging, but it s also a necessary part of your job as a PC technician By this point, you know that you can t just plug any CPU into any motherboard and expect it to work you have to match the right CPU to the right motherboard To accomplish this, you need to identify important CPU characteristics, such as form factor, clock speed, and bus speed, as well as things like voltage settings, clock multiplier con gurations, and cooling requirements
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