A+ Certification Study Guide, Fifth Edition (Certification by Michael Pastore

By Michael Pastore

The single classroom-based built-in research process for pro certification has been absolutely redesigned throughout--find out not just what to review, yet how one can examine. You’ll get a hundred% whole insurance of all targets for the A+ examination, enormous quantities of perform examination questions, and hands-on routines. The CD-ROM good points complete perform examination software program with interactive tutorials and lab simulations, plus an adaptive try out engine.

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Processor/CPU When you install a CPU, it is important to make sure that it is compatible with the type and speed of the system board. System boards can typically use only one processor model and can usually handle only two or three different speeds of that particular model. PGA/ZIF Older processors, such as the Intel 80486 and Pentium, are PGA processors and fit into square sockets on the system board. vp Wednesday, September 17, 2003 2:38:00 PM Color profile: Generic CMYK printer profile Composite Default screen CertPrs8 / A+ Certification Study Guide / Pastore / 222766-4 / Chapter 1 Adding and Removing Field-Replaceable Modules 31 insertion force type, simply remove the processor using a special PGA chip puller, then push the new processor into the socket.

This battery is usually good for 2 to 10 years. If the system repeatedly loses track of time when turned off, the battery is probably worn out and will need to be replaced. This is usually a fairly simple process and requires the removal of the outer system covers. As complicated as it might seem, make sure you that have an iron-clad understanding of the relationship between the computer’s BIOS and CMOS as well as the differences in their functions. The BIOS is a set of instructions, and the CMOS is used to store configuration settings for the BIOS.

Vp Wednesday, September 17, 2003 2:37:53 PM Color profile: Generic CMYK printer profile Composite Default screen CertPrs8 / A+ Certification Study Guide / Pastore / 222766-4 / Chapter 1 System Modules 9 next. These “lines” are the electronic circuits through which signals travel from one component to another and are collectively called the bus. The Processor or CPU Most computer components are designed to perform only one or a limited number of functions, and they only do so when it is specifically requested of them.

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