I WANT to know what is the work of the FOLLOWING work in a computer system. THE BIO,RAM,CMOS BATTERY,JUMPERS, HARD DRIVE AND HOW DO I KNOW THEY ARE FAULTY. thanks alot.google...wikipedia...your local library.Check out the videos here:http://www.professormesser.com/2008/03/15/professor-messers-free-comptia-a-certification-training-course/
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