Your task

To create an interactive PowerPoint to help students understand about computer hardware and networks

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How will I be assessed

You will be assessed based upon the following criteria

1. You have a Title page that is colourful and engaging (2 marks)

2.You have a Menu page that is colourful and contains links to all of your other pages (2 marks)

3.You have a page for each of the following with an appropriate image and accurate information that is in your own words.Each page is worth (2 marks)

• Input devices
• Output devices
• Processing devices
• Primary Storage
• Secondary Storage
• Storage Devices
• What is a computer Network
• What is a LAN
• What is a WAN
• Types of Networks
• What is a topology
• Bus topology
• Star topology
• Ring topology
• Operating Systems
• Types of Operating systems
• Advantages and Disadvantages of Operating systems
• Operating Systems features
• Functions of an operating system

4. you will get 2 bonus marks for each of the following extension task slides

• A diagram with your own example of the the input process output system
• Types of data storage volatile and non volatile
• The worlds biggest network

5. You have an interactive quiz with at least 5 questions (5 marks)

6. Your quiz does not allow the user to click to go to another slide but uses hyperlinks (2 marks)

7. Your presentation is suitable for the audience which is Year 6 (5 marks)

8. Any little extras you have done to make the presentaion more interactive and entertaining (5 marks)

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Total marks (65)

Operating Systems

An operating system is the most important software that runs on a computer. It manages the computer's memory, processes, and all of its software and hardware. It also allows you to communicate with the computer without knowing how to speak the computer's "language." Without an operating system, a computer is useless.

Booting up

You've probably heard the phrase boot your computer, but do you know what that means? Booting is the process that occurs when you press the power button to turn your computer on. During this process (which may take a minute or two), the computer does several things:

1. It runs tests to make sure everything is working correctly
2. It checks for new hardware
3. It then starts up the operating system

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Activity 1

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Lets try the following tasks:

Tick each task when you have successfully done it in the following list:

Operating systems usually come preloaded on any computer that you buy. Most people use the operating system that comes with their computer, but it is possible to upgrade or even change operating systems.

Lest have a look at some operating systems from the past. Click on the image below to try them out

The three most common operating systems for personal computers are Microsoft Windows, Apple Mac OS X, and Linux.

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Activity 2

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Lets try the following tasks:

Tick each task when you have successfully done it in the following list:

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Research what type of operating system is most used in Computer Science.

An operating system, or OS, is a software program that enables the computer hardware to communicate and operate with the computer software.

The most well-known operating systems are Windows, Mac OS and Linux, all of which have different versions.

Although Windows is a PC-based OS, it can be run on a Mac computer with the help of a programme called Parallels, for example. Generally speaking, here is a brief summary of pros and cons of each major operating system:

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Windows:

1. Can be expensive, especially compared to Linux, which is in most cases free.
   
2. Easy to use, especially for new computer users, and plenty of help resources are available online.
   
3. Although Microsoft Windows has made great improvements in reliability with recent versions, it still lags behind its competitors.
4. It has a large library of available software, games and utilities, although many are expensive.
   
5. Hardware manufacturers all make drivers and support for Windows OS.
   
6. Openness to virus attacks is a major disadvantage.
   
   

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Linux:

1. It is an open source OS, which in most cases is free.
   
2. Inexperienced computer users may find it more difficult to get to grips with Linux.
   
3. It is very reliable and rarely freezes.
   
4. Fewer computer programs, games and utilities are available for Linux.
   
5. Many programs are free or open source, even very complex ones.
   
6. There are still some manufacturers that do not offer hardware support for Linux OS, although there are fewer every year.
   
7. The open source nature of Linux allows more advanced users to customise the code as they wish.
   
8. Fewer people use Linux, therefore it is more difficult to find someone fully familiar with it, although there are vast resources online.
   
   

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Mac:

1. - MAC computers are more expensive generally than PCs.
   
2. MAC is a much more secure OS, and is far less open to viruses and malware.
   
3. Stability is a major advantage - it very rarely crashes, loses data or freezes.
   
4. Fewer computer programs and games are available for MACs.
   
5. As most computer components of MACs are made by Apple, there are not many driver issues, unlike with PCs, which are made by many different manufacturers
   - MAC OS is not as customisable as Windows or Linux.

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Activity 3

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Lets try the following tasks:

Tick each task when you have successfully done it in the following list:

You now have read about the various kinds of operating systems that are part of computers ranging from a humble mobile phone to a mighty supercomputer taking up an entire building.

But they share some common features, some of which are more important than others depending on the type of operating system

Scheduling

The task of handling how active processes are making efficient use of the CPU processing cycles is called scheduling.

Memory Management

The operating system has to make sure that applications are able to run in the amount of memory available and that they do not interfere with one another. There is a separate mini-website on this topic.

Allocation of resources

The operating system will provide a working area for each user. This includes

• Disk space quota for their files ( especially on shared network drives)
• A personal GUI set up for each user

Keeping track of usage

• Print out jobs completed
• Time spent logged in
• Other resources used

Data and User security

Each user has to be authenticated with an username and password (network and multi-user operating system).

Their data and files will be kept private from other users, unless they choose to make some shareable with others. The operating system will only allow administrators ('super users') to change parts of the operating system and install applications.

Managing input / output

Data and applications are stored on secondary storage devices such as hard disks, optical drives, magnetic tape when not in use. The operating system has a file management system that allows the user to organise their files, to move, delete and copy files as they wish.

Specialised input devices such as graphics tablets and scanners are also handled by the operating system.

Handling Network communication

Data packets traveling to and from the connected computers on the network are handled by the operating system. When an user drags a file from their hard disk to a shared networked drive, they do not care how it happens - the operating system takes care of all the details.

Activity 4

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Lets try the following tasks:

Tick each task when you have successfully done it in the following list:

provides the interface between the user and the computer - for example, Windows Vista and Apple OSX.

controls the backing store and peripherals such as scanners and printers

deals with the transfer of programs in and out of memory

organises the use of memory between programs

maintains security and access rights of users

deals with errors and user instructions

allows the user to save files to a backing store

issues simple error messages

Activity 5

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Lets try the following tasks:

Tick each task when you have successfully done it in the following list:

Summing it all up

Lets look at the learning outcomes and decide which one best describes our current level of understanding :

Tick the one you feel is closest to your level