By Jean Andrews
Written by way of best-selling computer fix writer and educator Jean Andrews, the 5th variation of A+ advisor to undefined: handling, retaining, and Troubleshooting maps absolutely to CompTIA's 2009 A+ examination pursuits. This full-color consultant is the main whole, step by step booklet on hand for studying the basics of aiding and troubleshooting machine undefined. while, it prepares readers to effectively cross the A+ 220-701 and 220-702 tests. the recent variation is formatted to aid any educating or studying type and path structure, that includes an essentials-to-practical association inside of every one bankruptcy and inclusion of tabs distinguishing examination content material. additional content material and dwell demonstrations with Jean Andrews can be found at the accompanying CD, making this new version a complete answer for upkeep and service.
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Extra info for A+ Guide to Hardware: Managing, Maintaining and Troubleshooting 5th Edition
RAM chips are embedded on a small board that plugs into the motherboard (see Figure 1-13). These small RAM boards are called memory modules, and the most common type of module is the DIMM (dual inline memory module). There are several variations of DIMMs, and generally you must match the module size and type to that which the motherboard supports. Also, video cards contain their own memory chips embedded on the card; these chips are called video memory. DIMM Three empty DIMM slots Figure 1-13 A DIMM holds RAM and is mounted directly on a motherboard Courtesy: Course Technology/Cengage Learning Whatever information is stored in RAM is lost when the computer is turned off, because RAM chips need a continuous supply of electrical power to hold data or software stored in them.
Org/discover/. S. Department of Labor. Career Guide to Industries, Computer Systems Design and Related Services. htm (visited September 23, 2009). S. Department of Labor. Labor Force Statistics from the Current Population Survey, Series Id: LNU02032192. gov/ PDQ/servlet/SurveyOutputServlet (visited September 23, 2009). org) published the objectives for the 2009 CompTIA A+ Certification exams. These exams went live in August, 2009. However, you can still become CompTIA A+ certified by passing the older 2006 exams that are to remain available until February 2010.
Non-volatile memory is used in flash drives, memory cards, and some types of hard drives. Using Windows Vista, you can see what type of CPU you have and how much memory you have installed. Click Start, right-click Computer, and then select Properties on the shortcut menu. The System window appears (see Figure 1-14). You can also see which version of Windows you are using. Using Windows XP, click Start, right-click My Computer, select Properties on the shortcut menu, and click the General tab. APPLYING CONCEPTS Figure 1-14 The System window gives useful information about your computer and OS Courtesy: Course Technology/Cengage Learning SECONDARY STORAGE As you remember, RAM installed on the motherboard is called primary storage.
A+ Guide to Hardware: Managing, Maintaining and Troubleshooting 5th Edition by Jean Andrews