Modern Communications

Modern Communications and SE tsunamis
It seems that using modern communication during a tragic time had its good and bad points.
Although it would seem faster and more efficient to use modern communication, in some ways it would do no good.

For those that lived in the less developed parts of Asia, they did not recieve the email that was sent out to warn people about the quake unlike those who live in the much more developed parts of Asia who have access to the internet.
Wouldn't it be easier to use a phone while fixed-line communication systems were still in good use?

After the quake hit, the fixed-line communication systems either failed or became overwhelmed.
However, for those who had access to mobile phones could easily send out and recieve messages to let everyone know they were okay. Emails and messages were sent across the world to inform others of what had happend.

Haiku

I liv in Bahrain
Plz go gt me sum watr
It is rly hot

w@ do u wnt 2 do nw?
lets go out l8er
cuz its rly hot

Online Safety

Top 3 malicious codes

Virus
A virus is a program or a piece of a code that is loaded onto your computer without you knowing and automatically runs. Even simple viruses can easily duplicate it self which will take most of your computers memory which will cause it to slow down until it comes to a complete halt. An even more dangerous virus is one that is capable of sending itself across networks which will then harm more computers and will spread.

Worm
A worm is a program that replicates itself over a computer network and usually performs actions, such as using up the computer's resources and possibly shutting the system down.

Trojan horse
A trojan horse is a destructive program that covers up as a beginning application unlike viruses, trojan horses do not replicate themselves but they can be just as destructive. One of the most insidious types of Trojan horse is a program that claims to rid your computer of viruses but instead introduces viruses onto your computer.

Advantages and Disadvantages of using emails

Advantages:

• You can easily compose messages to friends,family and co-workers
• You are able to store messages and files up to 1GB on some web based email servers
• It is usually free
• You are able to send files and attachments with ease

Disadvantages:

• Are at risk to receive viruses
• Emails that you send goes through a number of computers before it reaches the recipients inbox and along the way there is a possibility that an individual could hack into your email and read it
• You are at risk in receiving spam. Once you have received spam, you may have to get a new email account.
• You must have access to the internet

How an email works

First of all, you, the sender composes a message using a web based or client based email software. The most familiar web based softwares are known as hotmail, yahoo and gmail.
then the sender types the address it would like the message to go to. The message is then sent to the senders ISP's mail server where it chooses the best route for it to get to the recipients address that was previously typed in.
The email is then sent throught the interent and arrives at the recipients ISP's mail server and is stored until the email is seen.

Here is a flow chart.

Online Services

There are different ways of communicating to one another through the internet. These are called the "Online Services"
There are 5 in total. These are:

• SMS - short message service
• Blog - web log
• Vlog - video log
• Email
• Chat

SMS - is the most popular way amongst teenagers to chat through their mobile phone. An SMS is less expensive than making a normal phone call.
Blog - has become more popular since 1999 when Peter Melholz began blogging. Now, it is a way to inform others either on the blogger's thoughts and feelings or a way to express their feelings on controversial topics. There are may websites that provide users to blog such as Blogger and Blogspot. However, it has become more popular because of networking websites such as Myspace and Friendster
Vlog - is somewhat similar to a "blog" but is more visual. Here, is an upcoming star who decided to start her her own vlog.

Email - is an easy and simple way to communicate to family, friends and co-workers. The most popular email services are Hotmail and Yahoo!. Although, there are disadvantages made for those who use these email services, such as spam, spoof, and flame.
Chat - The easiest and simplist way to communicate through one another. Unlike email services, Chat rooms and instant messaging programs provide an easy way to talk to and allows for "instant" communications between people. This can save time and money as you can resolve questions or problems immediately. Such as: