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

By Michael Pastore

The one classroom-based built-in learn approach for pro certification has been absolutely redesigned throughout--find out not just what to check, yet tips to research. You’ll get a hundred% whole insurance of all goals for the A+ examination, thousands 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 attempt engine.

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The drive’s read/write head moves back and forth along the exposed area, reading data from and writing data to the disk. 5-inch floppy disk, front and back Floppy disks themselves are available in several different forms and capacities. 2MB of information. However, these are no longer considered standard computer equipment, so you shouldn’t expect to see questions about them on the A+ tests. 88MB (extra high density) of information. 44MB. Floppy drives are limited in the types of disks they can access.

That is, you don’t have to tell the calculator how to add or subtract every time you use it. Each time you turn the calculator back on, the calculator knows which buttons perform which functions. BIOS One type of computer firmware is the basic input/output system (BIOS). The BIOS is responsible for informing the processor which devices are present and how to communicate with them. Whenever the processor makes a request from a component, the BIOS steps in and translates the request into instructions that the required component can understand.

Fortunately, since most drives are standardized, they can be recognized by any PC and don’t need special configuration. Hard Drives Follow the procedure in Exercise 1-2 to remove a hard drive. EXERCISE 1-2 Removing a Hard Drive 1. Remove the power supply and ribbon cables from the back of the hard drive. Ensure that you grasp the plastic connector, not the wires themselves. If the connector doesn’t come out easily, try gently rocking it lengthwise from side to side (never front to back) while you pull it out.

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