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Chapter1 Competencies After you have read this chapter, you should be able to: 1. Explain the five parts of an information system: people, procedures, software, hardware, and data. 2. Distinguish between system software and application software. 3. Discuss the three kinds of system software programs. 4. Distinguish between basic and specialized application software. 5. Identify the four types of computers and the four types of microcomputers. 6. Describe the different types of computer hardware including the system unit, input, output, storage, and communication devices. 7. Define data and describe document, worksheet, database, and presentation files. 8. Explain computer connectivity, the wireless revolution, and the Internet. 第一章能力当你阅读本章，你应该能够： 1。解释了信息系统的五个部分：人，程序，软件，硬件和数据。

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