tailieunhanh - Lecture Using information technology (11/e): Chapter 3 - Brian K. Williams, Stacey C. Sawyer

Chapter 3 - Software: Tools for productivity & creativity. The main contents of the dissertation consist: The operating system: what it does; other system software: device drivers & utility programs; common features of the user interface; common operating systems; application software: where to get it, how to use it; data files & program files; word processing software; spreadsheet programs; database software; office suites & integrated packages; specialty application software. | Chapter 3 Software: Tools for Productivity & Creativity 3 1 Chapter Topics 2 UNIT 3A: System Software: The Power behind the Power The Operating System: What It Does Other System Software: Device Drivers & Utility Programs Common Features of the User Interface Common Operating Systems UNIT 3B: Application Software: Getting Started Application Software: Where to Get It, How to Use It Data Files & Program Files Word Processing Software Spreadsheet Programs Database Software Office Suites & Integrated Packages Specialty Application Software UNIT 3A: System Software: The Power behind the Power Application software is software that has been developed to solve a particular problem for users—to perform useful work on specific tasks or to provide entertainment. System software runs at the most basic level of your computer and enables the application software to interact with the computer and helps the computer to manage its internal and external . | Chapter 3 Software: Tools for Productivity & Creativity 3 1 Chapter Topics 2 UNIT 3A: System Software: The Power behind the Power The Operating System: What It Does Other System Software: Device Drivers & Utility Programs Common Features of the User Interface Common Operating Systems UNIT 3B: Application Software: Getting Started Application Software: Where to Get It, How to Use It Data Files & Program Files Word Processing Software Spreadsheet Programs Database Software Office Suites & Integrated Packages Specialty Application Software UNIT 3A: System Software: The Power behind the Power Application software is software that has been developed to solve a particular problem for users—to perform useful work on specific tasks or to provide entertainment. System software runs at the most basic level of your computer and enables the application software to interact with the computer and helps the computer to manage its internal and external resources, as well as manage the hardware. There are three basic components of system software that you need to know about: 3 1. Operating systems: An operating system is the principal component of system software in any computing system. 2. Device drivers: Device drivers help the computer control peripheral devices. 3. Utility programs: Utility programs are generally used to support, enhance, or expand existing programs in a computer system. The Operating System What It Does 5 The operating system manages the entire computer system. The operating system (OS) consists of the low-level, master system of programs that manage the basic operations of the computer. Every general-purpose computer must have OS to run other programs. OS allows users to concentrate on applications rather than on complexities of the computer. Each application program is written to run on top of a particular OS. The OS manages: • Booting • CPU management • File management • Task management • Security .