Cheryl Schmidt's Complete A+ Guide to It Hardware and Software, Eighth Edition presents the fundamentals of computer desktop and laptop installation, configuration, maintenance, and networking through simple, step-by-step instruction based on CompTIA A+® Edition objectives. With a focused emphasis on security and customer service skills, this comprehensive computer repair guide introduces the most important tools students need to become professional, customer-friendly technicians using today's technologies. A+® Certification Exam objectives summarize exam topics in an easy-to-use reference at the beginning of the book, so students can quickly locate and review key concepts covered on the exam. Each section is written in building-block fashion, beginning with the simplest concepts, continuing on to more advanced concepts, and creating a solid foundation for understanding new technologies as they arrive. Schmidt provides comprehensive pedagogical tools, many of them unique to this book. Excellent resource to learn installation, preventative maintenance, networking, security and troubleshooting of PCs preparing you for entry-level IT job roles Straightforward coverage of all certification objectives Extensive end-of-chapter review, including true/false, multiple choice, matching, fill-in-the-blank, and open-ended questions Soft Skills sections in each chapter, and at least two Soft Skills activities at the end of each chapter Tech Tips designed to be useful in real-world PC repair Hands-On Exercises linking theory to practice and experience Clear chapter objectives At least 2 Critical Thinking Skills activities in every chapter Comes with instructor resources for course use: Instructor's Manual, Chapter Power Points, Test Bank.
Using an original and unprecedented multi-level analysis of access and use in low-income neighbourhoods, 'Digital Cities' tells the story of information technology use and inequality in American cities and metropolitan areas.
Using an original and unprecedented multi-level analysis of access and use in low-income neighbourhoods, 'Digital Cities' tells the story of information technology use and inequality in American cities and metropolitan areas.
Prentice Hall版权所有
计算机网络
和美国西蒙与舒斯特国际出版公司合作出版
of widely separated networks , two “ half bridges ” are needed ( see Figures 14-6 and 14-7 , below ) . ... ( a ) Architecture tl , t8 User data t2 , t7 LLC - H User data t3 , t4 , 15 , to MAC - H LLC - H User data MAC - T ( b ) ...
The objective of this book is to provide an up-to-date survey of developments in computer security.
Internet and WWW 2: Internet Network Design, Implementation and Management
Companion CD-ROM The companion CD-ROM contains a test bank with over 200 practice questions and an electronic version of the text. This volume is part of the Exam Certification Guide Series from Cisco Press(r).
With link encryption, each vulnerable communications link is equipped on both ends with an encryption device.Thus,all traffic over all communications links is secured.Although this requires a lot of encryption devices in a large network ...