BBBIT Operating SystemsHow many different operating systems can you name?

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By the end of today’s lesson;• All of you will understand what an

operating system is and what its purpose is (D-E)

• Most of you will describe the different types of operating system (B-C)

• Some of you will compare and contrast different operating systems (A*-A)

Learning Outcomes

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What is the role of an operating system?To hide the complexities of the hardware

from the user. In addition, it manages the hardware resources in order to provide for an orderly and controlled allocation of the processors, memories and I/O devices among the various processes competing for them

Operating Systems

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Interactive - Modern computers operate using an interactive system in that the user and the computer interact or communicate with one another.

The user can enter data which is processed immediately or enter commands like 'Save' or 'Print'. The computer responds through dialog boxes asking the user where they would like to save the file or how they would liike the file to be printed. This is similar to a 'conversation'

Increasingly users are interacting with their computers through the user of touch screen technologies.

Operating Systems

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Real time - This is used in systems that control a series of actions by using a computer. An engine management computer under the bonnet of the car has to deal with lots of different inputs. The system will take all of these inputs and process them to control the car.

Operating Systems

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Network - All computers that are on a network will need an operating system that allows them to connect. It should;• Deal with log on issues• Maintain network connections• Expand file system to see folders on

different computers• Provide security to separate accounts

Operating Systems

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Device - A mobile operating system, also referred to as mobile OS, is the operating system that operates a smartphone, tablet, PDA, or other digital mobile devices. Modern mobile operating systems combine the features of a personal computer operating system with touchscreen, cellular, Bluetooth, WiFi, GPS mobile navigation, camera, video camera, speech recognition, voice recorder, music player, Near field communication, personal digital assistant (PDA), and other features.

Operating Systems

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Embedded - Used in embedded systems (systems designed for a specific purpose). These operating systems are designed to be compact, efficient at resource usage, and reliable, forsaking many functions that non-embedded computer operating systems provide, and which may not be used by the specialised applications they run.

Operating Systems

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Desktop - An operating system that allows a user to carry out a broad range of general-purpose tasks.

Operating Systems

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Server - Server Operating System is an operating system that provides its networked clients some specific services. Server Operating system doesn't have GUI because:• more expensive as it costs more money• it takes up processing power

Operating Systems

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Either on a MS Word report, or a MW PowerPoint presentation, you will need to record your thoughts on these;• Definition of an operating system,• Explanation of each of the types,– Try to find at least one example fro

each

• Comparison of desktop, device, embedded and server operating systems.

Your Task

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Text about stuff

apply

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Text about stuff

review