Download PDF by David Groth: A+ Complete Study Guide

By David Groth

ISBN-10: 0782128025

ISBN-13: 9780782128024

I handed my three hundred sequence A+ examination the 1st time after learning this ebook and the perform tests. now not that the three hundred sequence has been retired, yet that I handed my examination on June 29, 2007; the day sooner than the three hundred sequence checks have been to retire!
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See Chapter 13 for more information. 6. D. EXE file is used to provide CD-ROM drive support prior to Windows 98 being loaded. You also need to load the proper CD-ROM driver. See Chapter 13 for more information. 7. A. The SETUP /pi switch skips the check for any Plug-and-Play devices. See Chapter 13 for more information. 8. B. When you install a portable or laptop computer and use the portable configuration, the PCMCIA support is added as well as Advanced Power Management for when the laptop is running from battery power.

Another physics-related concept is the transfer of heat. Heat is the enemy of electronic components. As the temperature increases, the longevity and reliability of the component decreases. Some processors (most notably the Pentium family of processors) produce temperatures in excess of 100 degrees F. 14). This device works by a process known as conduction. It works a lot like the way the fins on an air-cooled engine work. The device is made out of a heat-conducting metal, such as aluminum. As air moves throughout the inside of the computer, it will pass over the fins of the heat sink, cooling them.

This is similar to digital electrical signals, which have discrete values (like on and off). By way of comparison, the dimmer switch starts at off, but can be changed gradually to stronger and stronger intensities, up to the full on setting. At any one instant, a dimmer switch can have a setting almost anywhere between on and off. This is similar to an analog electrical signal, which may be on or off or somewhere in between. Vacuum Tubes—The Old Days… Today’s computer components are the products of previous generations of trial and error.

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A+ Complete Study Guide by David Groth


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