Lecture Basic network management: Chapter 2 - Trung tâm Athena

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Chapter 2 - Software & operating system. After studying this chapter you will be able to understand: What is the software? How is software categorized? What is an operating system? What does an operating system do?

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Nội dung Text: Lecture Basic network management: Chapter 2 - Trung tâm Athena

Chapter 2: Software & Operating System ATHENA
Objective  What is the software?  How is software categorized?  What is an operating system ?  What does an operating system do? ATHENA
What’s the software ?  Software is the instructions and associated data, stored in electronic format, that direct the computer to accomplish a task.  A computer program is a set of detailed, stepbystep instructions that tells a computer how to solve a problem or carry out a task. ATHENA
How is software categorized?  Software is categorized as either application software or system software.  Application software is designed to be used for a purpose such as drawing designs, creating documents, etc.  System software is designed to help the computer carry out the basic operating functions Ex: Operating systems, utilities, and drivers ATHENA
Operating System Overview: What is an operating system ?  An operating system (OS) is the master controller for all of the activities that take place within a computer. Ex: Microsoft Windows XP, Mac OS, Linux, UNIX  The operating system also interacts with the next functional layer called application software. ATHENA
How is software categorized? ATHENA
What does an operating system do? Example: ATHENA
Personal Computer Operating Systems  Windows, Mac OS, Linux, Unix, and DOS  What’s the bestselling operating system? ATHENA
Personal Computer Operating Systems  Microsoft Windows is the most popular, and is installed on over 80% of the world’s personal computers  UNIX was developed in 1969 at AT&T’s Bell Labs  Linux was developed in 1991  DOS (Disk Operating System) was developed by Microsoft ATHENA
Personal Computer Operating Systems  Different operating systems are needed for different computing tasks: • Singleuser operating system – Ex: MSDOS, Windows 3.1, Windows 3.11 • Multiuser operating system – Ex: Windows Server 2000/2003 • Network operating system – Ex: Linux, Unix, Windows Server 2000/2003 • Multitasking operating system – Ex: Windows Server 2000/2003 • Desktop operating system – Ex: Windows 95, Windows Me, Windows XP ATHENA
Summary  Software  How is software categorized?  operating system Overview  What does an operating system do? ATHENA