信息技术专业英语

Unit One Computer Architecture
Part One Reading
Text A System Architecture
Text B The Component Types Recognized at the Processor Level
Part Two Writing
Writing Salon
Writing Activity
Part Three Translation
Translation Seminar
Translation Task

Unit Two Operating System
Part One Reading
Text A Operating System
Text B Operating System Evolution and Concepts
Part Two Writing
Writing Salon
Writing Activity
Part Three Translation
Translation Seminar
Translation Task

Unit Three Programming Languages
Part One Reading
Text A Early Generations
Text B Paradigms of Programming Languages
Part Two Writing
Writing Salon
Writing Activity
Part Three Translation
Translation Seminar
Translation Task

Unit Four Embedded System
Part One Reading
Text A Embedded System
Text B Exemplary Applications of Each Type of Embedded System
Part Two Writing
Writing Salon
Writing Activity
Part Three Translation
Translation Seminar
Translation Task

Unit Five Biological Computer
Part One Reading
Text A The Digital Brain
Text B Computer Science and Bioinformatics
Part Two Writing
Writing Salon
Writing Activity
Part Three Translation
Translation Seminar
Translation Task

Unit Six Information Security
Part One Reading
Text A Security Mechanisms
Text B Secret-Key Cryptography and Public-Key Cryptography
Part Two Writing
Writing Salon
Writing Activity
Part Three Translation
Translation Seminar
Translation Task

Unit Seven Machine Learning
Part One Reading
Text A Machine Learning and Software Engineering
Text B Machine Learning Methods in Assistive Technologies
Part Two Writing
Writing Salon
Writing Activity
Part Three Translation
Translation Seminar
Translation Task

Unit Eight Mobile Commerce
Part One Reading
Text A Mobile Commerce
Text B Mobile Security and Payment
Part Two Writing
Writing Salon
Writing Activity
Part one Translation
Translation Seminar
Translation Task

Unit Nine Grid Computing
Part One Reading
Text A Grid Infrastructure
Text B Current Grid Activities
Part Two Writing
Writing Salon
Writing Activity
Part Third Translation
Translation Seminar
Translation Task

Unit Ten Wireless Networks
Part One Reading
Text A An Overview of Wireless Technology
Text B Using Wireless Technology Securely
Part Two Writing
Writing Salon
Writing Activity
Part Three Translation
Translation Seminar
Translation Task
Appendix A Key to Exercises
Unit One
Unit Two
Unit Three
Unit Four
Unit Five
Unit six
Unit Server
Unit Eingt
Unit Nine
Unit Ten
Appendix B Text Translation
Unit One
Unit Two
Unit Three
Unit Four
Unit Five
Unit six
Unit Server
Unit Eingt
Unit Nine
Unit Ten

Other users sit at workstations, connected to networks of other workstations and serversThese users have dedicated resources at their disposal, but they also share resources such asnetworking and servers——file, compute and print servers. Therefore, their operating system isdesigned to compromise between individual usability and resource utilization
Recently, many varieties of handheld computers have come into fashion. These devices aremostly standalone, used singly by individual users. Some are connected to networks, eitherdirectly by wire or （more often） through wireless modems. Due to power and interfacelimitations they perform relatively few remote operations. The operating systems are designedmostly for individual usability, but performance per amount of battery life is important as well
Some computers have little or no user view. For example, embedded computers in homedevices and automobiles may have a numeric keypad, and may turn indicator lights on or off toshow status, but mostly they and their operating systems are designed to run without userintervention
System View
From the computer's point of view, the operating system is the program that is mostintimate with the hardware. We can view an operating system as a resource allocator. Acomputer system has many resourcesmhardware and software——-that may be required to solve aproblem: CPU time, memory space, file-storage space, I/O devices, and so on. The operatingsystem acts as the manager of these resources. Facing numerous and possibly conflictingrequests for resources, the operating system must decide how to allocate them to specificprograms and users so that it can operate the computer system efficiently and fairly