计算机专业英语习题1ch_1_im.doc

Ch 1 Information Technology, The Internet, And You Lecture Outline Competencies pg 2 Explain the five parts of an information system: people, procedures, software, hardware, and data Distinguish between system software and application software Distinguish between special-purpose and general-purpose application software Identify the four types of computers and the three types of microcomputers Describe the different types of computer hardware including the system unit, input, output, storage, and communication devices. Define data and describe document, worksheet, database, and presentation files. Explain computer connectivity and the wireless revolution. Describe the Internet and the Web. Introduction pg 3 Computer competency can be understood by the concept of being able to walk into a job and immediately be valuable to an employer. Competent end users need to know the five parts of an information system: people, procedures, software, hardware, and data. They need to understand connectivity, the wireless revolution, the Internet, and the Web and to recognize the role of information technology in their professional and personal lives. Key trends in information technology include: Microcomputers are common tools in all areas of life. New forms of learning have developed. New ways to communicate, find people with similar interests, and buy goods are available on line. Information Systems pg 4 An information system has five parts: People: end users and information technology staff Procedures: the rules or guidelines people follow when using software, hardware, and data Software: programs that tell the computer how to do its work – they process data to convert it into information Hardware: the equipment that processes the data to create information Data: the raw, unprocessed facts including text, numbers, images, and sounds. An additional part of information systems is connectivity. Connectivity allows computers to connect and share information. People pg 6 People are