Mean, Median, Mode

Mean: You find the mean by calculating the Sum of the numbers divided by the amount of the numbers. Advantages of using the mean includes; it being easier to use with high numbers than the median and mode, it's accurate and reliable and it has equal weighting. An example of what this can be used effectively for is US president elections.

Median:You find the median by putting the data in numerical order from smallest to biggest and them finding the number in the middle. If there is an even amount of values you find the median by adding the two numbers in the middle together and dividing them by two. Advantages include the fact that it divides the data up so there is 50% above the Median and 50% bellow the median, it gives the distribution a "balance point"and it is not effected by outliers as the mean and mode are. An example of how the median can be used is by finding the average of football scores for a football team.

Mode: You find the mode simply by looking at a set of data and counting how many times a number occurs. The number that occurs most is the mode. Advantages include that it's a basic concept,it has no calculations, it's easy to remember, it allows you to see what the majority has and it allows you to see repetitions. An example of how the mode can be used is when the salesman orders sizes of shoes for his store. The mode allows him to know what sizes are needed the most.

Media Research

  ~  http://www.youtube.com/watch?v=dwHVemjy2YU
I thought that it was unbelievable how they whipped the students and chained their feet together if they were causing trouble. They are also dragged around as if they were animals.

  ~ http://www.metacafe.com/watch/727192/sudanese_refugees_in_egyptian_torture_claims/
It is one thing for people to be tortured by other citizens but another for the government to command people to be tortured and killed. The fact that the Sudan government is ordering such terrible commands shows how shocking state of all of Sudan is. I think that this is the most terrible thing related to torture happing in Sudan and will be useful to show people in my advert.

 ~  http://www.guardian.co.uk/world/video/2009/mar/04/sudan-child-soldiers
This video shows how boys in Sudan are forced to become soldiers against their will and subject them to the horrors of war.

No torture:

In many places this human right has been used to protect the rights of:

Prisoners- they could be subjected to things like stress positions, hooding and having food and sleep taken away from them.

Those being deported- this means that the government cannot send someone to another country where they face the risk of torture

Those seeking refuge

Children- In some cases children are severely beaten by their legal guardians

This has been violated in cases of slavery, physical bullying at school, and prisoner abuse.

In Sudan the greatest violation to this human right is child Soldiers- there are more than 17,000 child Soldiers fighting on the government’s side and many of them are recruited by force or under treat of loosing their life. Others are told they are going to attend school but the so-called “school” turns out to be military training facilities disguised as a school. Sudan has the worst case of Child Soldiers in the world. During the time they are child soldiers they are tortured violently. 

ICT-Overview-Understanding of Computing

ICT-Overview-Understanding of Computing

 This is an explanation of how computers work. Technology goes much wider than ICT, Technology is every thing that is manmade. Technology is everything from a T-shirt to a laptop. Computer Systems can be very complicated so the four layer model helps us to break down information and make it easier to understand.

  Hardware is the first layer of this model it includes the six main essential components of a computer which is the Motherboard, the RAM, the Hard Disk Drive, the Central Processing Unit, the power supply, and the CPU case. These components are all that is needed for a Computer to run however; the CPU can work perfectly fine without a CPU Case.

  The Motherboard is the most well known component, the motherboard is what connects the CPU to all of the other components. 

  The RAM is what gives the Computer fast, expensive and unpredictable storage for the data of computer software. The RAM is fast but not permanent once the computer is turned off all the data on the RAM will no longer be there.

  Unlike the RAM the Hard Disk Drive is slow, cheap, and all of the data that it preserves is permanent. If the Computer is turned off the data will still be able to access the saved data.

  The Central Processing Unit is the CPU it accomplishes all of the tasks and controls of the data.

  The Power Supply does exactly what it’s name suggests that it does it gives power to the entire computer.

The CPU Case is what holds all of the other components together, gutters air for cooling down the computer and keeps dirt away from the other components.

 The next layer in this model is the Software which involves the BIOS, the Applications and the Operating System. When all of the Components are assembled properly together the next step is to install an operating system. The task of an operating system is to harmonize the actions of all of the components. If also makes materials available to operators in a safe and upright way. An example of a free operating system is a network called Ubuntu, which is a substitute to other operating systems that you have to pay for. To install an operating system you put the CD or thumbdrive that the system provides onto the computer and then simply ‘boot into it.’

 Network is the layer in the model that comes next it involves the Internet, the Local network, the Domain name, the IP Address, and Ping. The Internet is a network of networks when you send a picture to a website (i.e. Facebook) the data is split up into multiple packets of equal sizes. These packets will then try to find the easiest route through the Internet as possible while routing around any problems that might occur. One problem that could occur is a certain route breaking down. Unlike a phone network there is not only one single physical route between two websites. The Internet is designed to withstand nuclear attacks and if one line is destroyed the Internet will still remain intact. So in the case that a route has broken down the packets will find an alternative route to get to their destination. During the packet’s journey they will pass through something called firewall, which will destroy bad packets, the administrator will get to decide what it will or will not let in. Once the packets arrive they will do so at different times and in different orders so the packets will assemble themselves in the correct order once they get to their destination. If a packet gets lost and never arrives that packet will be resent.

Despite all of the wonderful programs that ICT gives us there are still issues that surround their use. For example; improper use of ICT which can involve hacking into someone else’s computer to use ICT without paying for it and cyber bullying, in other words typing rude and hurtful messages on an online community for everyone to see in order to destroy the reputation of others. There is also the issue of how ICT can effect the environment we live in, for example the pollution that ICT puts into the air. All of these issues are prove that although ICT can help solve problems it can also make new problems. 

ICT-Presentation

+: I did well on having good eye-contact with the audience and not only looking at my powerpoint too much.

-: I should have spoken more quickly in my presentation so I could finish in less than a minute instead of over a minute.

ICT-The Internet

When you send an image to a website (i.e. Facebook) it is split up into multiple packets they then try to find the easiest route through the internet. The Internet is a network of networks it routes around problems if a certain route breaks down the packet/packets will find another route to get to it's destination and if a packet gets lost it will resend that packet. The packets all arrive at different times at once they get there they will sort themselves into the correct order. The firewall will destroy bad packets and you get to decide what it will or will not let in.

In our ICT class we made a role play of this using chairs as the IP addresses and string as the connection between them. The video is shown below:

ICT-what we learnt

In the Last few weeks we have divided into four groups and put an old computer back together again, along the way learning about the different parts of the computer:

Motherboard: Something that everything connects to.
RAM: It is where all of the data is stored, only when the computer is on (it is NOT PERMANENT).
Hard drive: This is what PERMANENTLY stores your files and data to the computer.
CPU Case: The Case protects the whole computer system (Hardware) and holds it together.

When we were putting all of the parts of the computer together we worked more independently. I liked this method of learning better because, it required more creativity than it would if the teacher were to tell us every single step of putting together a computer. Instead we had to work it out ourselves like a puzzle.

The next lesson we did a smoke test, to do it we plugged the computer into the wall and if it makes a long beeping sound or/and lets out smoke that means that something is wrong with the way something is put together but, if the fan turns on and none of the signs that something is wrong shows that means that everything is put together correctly. Afterword we had to install a free software called linux.

Environment-Go Green wordle