计算机科学导论1.pptVIP

Chapter 1 Contents Introduction to this course What is a computer Computer based information system Objectives Explain the importance of learning computer and how to learn it. Define the term computer and identify the components of a computer (Describe the von Neumann model). Describe hardware devices for input, processing, storage, output, and communication. Objectives Differentiate between system software and application software. Describe the categories of computers and their uses. Explain the five parts of an information system. part 1INTRODUCTION TO THIS COURSE Computer is everywhere Computers are affecting our lives and the whole society profoundly Without computers, the world wont go around Why should we learn computer how to learn it computer professional or computer user? A computer professional is a person who has a certain amount of experience and/or at least a two-year degree in the technical aspects of using computers. for example software programmer system analyst network administrator Why should we learn computer how to learn it computer professional or computer user? The user (or end-user) is a person without much technical knowledge of computers but who uses or wants to use computers to perform work-related or personal tasks, enhance learning and productivity, or have fun. Why should we learn computer how to learn it Why should I learn computer? work requirement improve life quality Why should we learn computer how to learn it different from learning mathematics use computer as much as possible read extensively What will we learn in this course Terms and common knowledge Introduction (2) Data Representation (4) Hardware (3) Software (3) Algorithms (4) Programming Languages (4) Networks and Security (4) The Content Framework part 2 WHAT IS A COMPUTER? Definition of computer A computer is an electronic device that receives data (input), processes data, stores data, and produces a result (output) . Definition of c