Wednesday, March 30, 2011

Storage Example Questions


1. Explain why the following are used with PCs.
Pen drives- Portability for transferring files from one computer to another
Blu ray- Large amounts of storage (50GB), bigger than DVD's and HD movies 
Fixed hard disc drives- 

2. Students can use CDs or pen drives for storing their work. Give three reasons why students may prefer to use pen drives.

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3. Ring two items which are storage media.
Flash memory card
OCR
Graph plotter
OMR
Magnetic disc
Touch pad

4. Ring two items which are output devices.
Blu-ray disc 
Optical mark reader 
Graph plotter 
Projector 
Web cam 
Graphics Tablet 

5. Complete the following sentences using the most suitable storage device or medium listed
below.

(a)memory stick
(b)fixed hard disk drive
(c)DVD R
A student taking his coursework home to develop would use a
A company selling copies of games would use a
An office worker who never took her work home would store her work on a

Tuesday, March 29, 2011

Backups

Why backup? You back things up to safety proof them in case something happens to all the data you had stored such as it corrupts or is lost in an emergency such as a fire.

Backing Storage

Fixed hard disks are used in file servers and are online. Portable hard disks would be used for storing very large files that need to be transported from one device to another. Magnetic tapes are used for backups of file servers for computer networks. CD/DVD ROM are used because data can not be deleted off it whether it be accidental or on purpose. CD/ DVD R is used for the single burning of data. CD/DVD RW allows you to record over old data and update the information. DVD RAM is the same as DVD RW but allows for quicker access and can be overwritten more easily. Blu- ray has a capacity of about 50 GB, provides HD video and is used for storing films in high quality. Solid state backing storage is easily up datable and written and is more robust than other forms of storage. Pen drives can transport files and backup data from computer to computer. Flash memory cards are used in digital cameras, palmtops, mobile phones and MP3 players.

Monday, March 7, 2011

Twitter in Christchurch

In what ways did Twitter help people in Christchurch?
Twitter has allowed people trapped by rubble to tweet where they are and that they need help. For some people it saved their lives, for others it was their last few words- a tweet on twitter! People have also being allowed (through twitter) to let people in need of food, water and shelter to know that they have these sorts of resources either in their houses or warehouse. For example, a man tweeted that he had cartons of water in his warehouse and before long a hundred dehydrated people turned up in desperate need of water.

Quote examples of tweets that show the different uses.
1.       mairesmith: RT @WgtnCC: Plea for cash donations rather than donated goods for quake victims. http://bit.ly/hCi7fS #eqnz
2.       michellefeyen: RT @ShotbyRobins: Need to locate Emma Johnston and Shen Yi Luan, please RT #eqnz
3.       dmanww: RT @Jeramedic: CA-TF2 USAR has departed LAX enroute to #NewZealand. Estimated flight time of 13 hours on flight UAL9797 http://ow.ly/42ice #eqnz #LACoFD
4.       DerMoosealini: RT @nzherald: Teams from Singapore, Australia, the US, UK, Taiwan and Japan are sending help to Christchurch: http://t.co/zcfxxb6 #eqnz

How do people use the Twitter functions?                                                   
They use Twitter functions such as the hash key and searching. By using the hash it is immediate group that not only goes to your friends but the whole world. It is as democratic as possible. Through the search engines anyone can type in anything in the search bar and all the tweets using those words that you used to search will come up. You don’t have to be a member nor do you have to be friends with the people who made the tweets. It is fast and efficient and is an easy way to communicate to people across the other side of the world. For example a lady in Christchurch was stuck in traffic trying to reach her Dad’s home to make sure he was safe. She rang her sister in Auckland who rang the brother in San Francisco, who then tweeted if anyone knew if this person was alright at the certain address, within a few minutes someone on Twitter replied saying he was trapped in a car.

Why is Twitter good in a crisis?
You can communicate with the world if you have a hand held device either letting them know where you are or whether  you need help or not. Also it allows people to advertise for  food and water in an efficient and accessible way. Twitter allows for mass communication between large groups of people and you don’t even have to be friends with them. You can organise things much easier and get a greater understanding of what needs to be done. Countries from right around the world are able to see what is going on and therefore let people know of the help they are contributing towards the crisis situation.

Compare it with Facebook.
On facebook only your friends can see your status and you can only invite your friends to groups that you create. Yes this is more private which some may say is a good thing but it is also less open and global in the sense of trying to get a message across in the time of a crisis.

mairesmith: RT @WgtnCC: Plea for cash donations rather than donated goods for quake victims. http://bit.ly/hCi7fS #eqnz

Thursday, March 3, 2011

Powerpoint

Master slides only edit colour and style not what you writing says on every slide, if you want to add master text then you have to add a text box then edit the style in the text box.

Lesson of the day- 2/03/11

P.E. had to be my favourite lesson of the day. We were playing twenty20 cricket which was the sport I played during summer anyway so I was good at it. I got to bat and ball unlike most people so I was constantly involved in the activities. 

I batted with my friend Seb Gould so it made batting a better experience along with being able to have fun with my mates while doing something that I liked as well. It was a win/win situation in which only the people who didn’t play cricket lost out. The fact that I was having fun meant I did well also scoring 16 runs off one over.