人教版高中英语选修计算机英语ApplicationSoftwareforCommunications.ppt

Application Software Objective In this unit, you will learn: Explain what application software is. Describe how system software interacts with application software. Identify the role of the user interface. Explain how to start a software application. Identify the widely used application software, such as graphic design, multimedia, and communication software. Review Computer Software System Software Application Software Computer software includes two parts: Application software What is application software? Programs designed to make users more productive or assist them with personal tasks. Can you identity it in your own words? Application software The purpose of application software: Make business activities more efficient Assist with graphics and multimedia projects Support home personal and educational tasks Facilitate communications Application software How is the application software distributed： Packaged software: mass produced for many users, not one person or one company. Custom software: performs functions that are designed for a business or industry. Shareware: a copyrighted software that can be used for a short time. Freeware: a copyrighted software for free. Public-domain: not copyrighted, anyone can copy or give public-domain. Application software What is system software? Serves as the interface between the user, the application software and the computer’s hardware. To use application software, you must have system software as the platform. Application software How do you start an application? From the desktop, click the start button, point to All Programs and click the name of application. The program’s instruction load into memory. Common application softwares What is word processing software? Allow users to create and manipulate texts and graphics. You can insert in documents. Have you ever used Microsoft Word to design a text? Can you tell us how you work with it? Common