This brand new test prep manual is written for the computer technician seeking A+ certification. Filled with details on computer hardware and software, it can also serve as a general reference source for computer science students. In six main parts the text describes the certification process, details the standard components inside a typical computer, instructs on installing hardware, describes input and output devices, provides a software overview, and presents four sample A+ Certification exams with answers. A general reference chapter completes this volume. The optional CD-ROM offers practice and review plus computer versions of the sample exams.The following tables provide a handy reference resource: TABLE 6-2 UNITED STATES WIRE COLOR CODES The amount of current needed to operate a device; ... A PC power supply generates four levels of voltage: +5V, -5V, +12V, and-12V.
|Title||:||Barron's how to Prepare for A+ Certification|
|Author||:||Computer Confidence Inc.|
|Publisher||:||Barron's Educational Series - 2001|