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© Boardworks Ltd 2010 1 of 9 Operating Systems. © Boardworks Ltd 2010 2 of 9 Teacher’s notes included in the Notes Page Flash activity. These activities.

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Presentation on theme: "© Boardworks Ltd 2010 1 of 9 Operating Systems. © Boardworks Ltd 2010 2 of 9 Teacher’s notes included in the Notes Page Flash activity. These activities."— Presentation transcript:

1 © Boardworks Ltd 2010 1 of 9 Operating Systems

2 © Boardworks Ltd 2010 2 of 9 Teacher’s notes included in the Notes Page Flash activity. These activities are not editable. Web addresses Icons key: For more detailed instructions, see the Getting Started presentation Functional Skills check Student task accompanies this slide Printable activity This lesson will cover: What is an operating system? The functions of an operating system. Different types of operating systems. Different modes of operating systems.

3 © Boardworks Ltd 2010 3 of 9 What is an operating system? An operating system (OS) is the software on a computer that controls the way different programs use its hardware.

4 © Boardworks Ltd 2010 4 of 9 You cannot use any other program on your computer without an operating system. What does an operating system do? Operating systems provide the interface between the user and the computer hardware. Operating systems are found in any device that contains more than one program, including games consoles and smartphones.

5 © Boardworks Ltd 2010 5 of 9 controls the hard disk controls peripherals such as the keyboard or printer controls file operations maintains security organizes the use of memory between programs organizes processing time between users and programs deals with errors and issues error messages. Operating system functions An operating system:

6 © Boardworks Ltd 2010 6 of 9 Managing CPU time Whatever you are doing on your computer, computer memory must be allocated to each task being performed. The operating system helps to divide up the time needed by the central processing unit (CPU) for each task and manage which tasks take priority.

7 © Boardworks Ltd 2010 7 of 9 Types of operating system

8 © Boardworks Ltd 2010 8 of 9 Modes of operating system

9 © Boardworks Ltd 2010 9 of 9 Summary quiz


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