A+ CERTIFICATION STUDY GUIDE

Tham khảo sách 'a+ certification study guide', công nghệ thông tin, chứng chỉ quốc tế phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Troy Technologies USA A CERTIFICATION STUDY GUIDE Core Exam Edition 4 Congratulations You have purchased one of the Troy Technologies USA Study Guides. This study guide consists of a selection of questions and answers similar to the ones you will find on the official A Core Certification exam. All you need to do is study and memorize the following questions and answers and you will be ready to take the exam. Remember we guarantee it Average study time is 10 to 15 hours. Then you are ready. GOOD LUCK Guarantee Should you use this study guide and still fail the exam then send us the original of your official score notice along with your mailing address to Troy Technologies USA 8200 Pat Booker Rd. 368 San Antonio TX 78233 We will gladly refund the cost of this study guide. However you are not going to need this guarantee if you follow the above instructions. This material is protected by copyright law and international treaties. Unauthorized reproduction or distribution of this material or any portion thereof may result in severe civil and criminal penalties and will be prosecuted to the maximum extent possible under law. Copyright 1998 1999 2000 Troy Technologies USA. All Rights Reserved. Microprocessors CPU - The heart of the Microprocessor is the Central Processing Unit CPU . The CPU controls nearly all functions of the PC. External Data Bus - Wires on the motherboard used by the CPU to communicate with peripherals and ROM. Address Bus - Wires on the motherboard used by the CPU to communicate and access memory through the Memory Controller Chip MCC . How much memory a CPU can access depends on how many wires are in the address bus. Clock Speed - The speed at which a CPU can perform calculations and access peripherals or memory. This is controlled by the oscillating System Crystal located on the motherboard. Types of CPU packages CPU System DIPP Dual Inline Pin Package 8088 8086 80286 PGA Pin Grid Array 80286 80386 486 Pentium P6 PLCC Plastic Leaderless Chip Carrier

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