Blog Question for Week 4

'In your own view, give:

• Two advantages AND also
• Two disadvantages of using a mobile internet device for sending and retrieving email messages?

Two advantages of using a mobile internet device for sending and retrieving email messages are:

1. You can be able to send or recieve emails when your on the move as it is wireless . This makes it alot easier as you do not need to hassle into logging onto a computer for interent access in order to send or recieve emails even when if it is urgent. You can just access hotmail at your fingertips.
2. Easy, secure access . You do not need to worry about hackers gaining access to your emails as with mobile internet device it is private as it is your device only you have got access to your device and your email account in that device no-one else.

As well as advantages there are also disadvantages of using a mobile internet device for sending and retrieving email messages.

The two disadvantages of using a mobile internet device for sending and retrieving email messages are:

1. The screen size, due to the fact of the screen size being small the message size has to be limited to certain number of characters and also not all text and emoticons are shown.
2. The network coverge as sometimes depending on the area or the place your in the network coverage may not be availble and due to this emails cannot be sent or retrieved which can cause problems as it may be urgent.
   
   

References:

Blackberry Email Solutions

http://b2b.vzw.com/productsservices/wirelessemail/bbsolutions.html [Viewed: 29/10/07]

Blog Question for Week 3

'Describe (using your own words) why IP addresses for device connected to the internet are due to run out shortly and propose what possible solutions have been put forward to address this massive 'time-bomb'.

IP addresses for device connected to the internet are due to run out shortly because of the increasing number of applications on the internet and also because of the number of new internet users in China and India which has led to increase in the IP usage . The current IP addresses are in a format known as IPv4 which are made up of four integers these are between 0 and 225. This is not enough to address the internet use for the new Asian growth and also the current IP address IPv4 is not enough for the increase number of internet access usage on computers and on internet mobile devices.

The possible solution that have been put forward to address this massive 'time-bomb' is to push people towards the internet protocol version 6, which uses six integers known as IPv6 as this internet protocol would make the use of 'almost unlimited' number of web addresses.

References:

Action needed as IP addresses run out

http://www.nzherald.co.nz/ict-news/news/article.cfm?c_id=55&objectid=10513005 [Viewed: 27/10/08]

IP addresses shortly to run out

http://news.domainmonster.com/ip_address_shortage/ [Viewed: 27/10/08]


Ablog- Are we running out of IP addresses

http://ablog.apress.com/?p=718 [Viewed: 27/10/08]

Blog Question for Week 2

a) Describe how the www. Yahoo. com search engine works and give one advantage and one disadvantage in this method of searching?

The search engine www. Yahoo.com is powered by Google, it works as a directory. Yahoo is a subject index, which is known as hierarchical it enables the user to go down from the most common to the most precise. it is a place where human editors arrange web sites into categories.
Yahoo uses its own search technology. With Yahoo the user can use tabs that are above the search entry box on Yahoo home page to search for images, Yellow Page listings or use Yahoo's excellent shopping engine. Yahoo has its very own searching abilities meaning the user can search the Yahoo index. if the user's question does not get any hits as Yahoo index does not search the entire web, this type of search engine gives the user an option, this option is searching the Alta Vista. With this the entire web is searched. Yahoo has an ability to work as a meta-search engine as it automatically will feed the user's question to other key search engines that's if the user wishes.

One advantage of this seraching method is that it has an easy to use interface and an easy to navigate subject catalogue.

One disadvantage of this searching method is that this type of search engine is not clear how the search results are categorised as it only returns quite few number of hits.

b) Describe how the www. Google. com search engine works and give one advantage and one disadvantage in this method of searching?

The search engine Google is known as a crawler-based search engine. This type of search engine works by creating its listings automatically meaning it 'crawls' or 'spiders' the web first, it basically takes a snapshot of each page and considers it to examine the page's importance which then the users are able to search through of what has been found by them. It also has a large index of keywords where those words can easily be found. When the user types in keywords in Google, this search engine transfers to its database and shows all the results of that particular keywords entered by the user.
Google uses a special trademarked algorithmn known as 'PageRank'. This algorithmn gives each web page an importance score.

One advantage of this searching method is that the user's search cover's more than 8 billion URLs as the google index consists of more than 8 billion URLs meaning for an result to return is obvious.

One disadvantage of this searching method is that spam and unwanted results are becoming average.

c) In your view explain which search engine you prefer to use when searching the web and justify why you have this preference?

The search engine i prefer to use when searching the web is Google as this gives out faster, accurate and signifcant results. Also Google produces results which match with all of your search names both in the text of the page or in the text of the links pointing to the page unlike Yahoo search engine. This Saves you from causing you frustration of viewing huge number of results that according to you have got nothing to do with your seach name.

References:

How search engines work (Google)

http://searchenginewatch.com/showPage.html?page=2168031 [Viewed: 25/10/08]

The Spider's Apprentice (Yahoo)

http://www.monash.com/spidap3.html [Viewed: 24/10/08]

How Yahoo search engine works

http://searchenginewatch.com/showPage.html?page=2156221
[Viewed: 24/10/08]

How google search engine works

http://computer.howstuffworks.com/google1.htm [Viewed: 25/10/08]

Advantages of google search

http://www.google.co.uk/technology/whyuse.html [Viewed: 25/10/08]

Advantages and disadvantages of google

http://www.resource-zone.com/forum/showthread.php?t=13285 [Viewed: 25/10/08]

Blog Question for Week 1

"Give one similarity and one difference between a blog and an E-mail?"

The one similarity between blog and E-mail is that people can write and post messages to recipients. With both blog and e-mail the messages can be communicated electronically between computers and users.

The one difference between blog and an E-mail is that an blog is an online journal where the user can update their post daily and reflect the personality of the author whereas E-mail the user can not update their messages daily and with blog the post could either be published as public or private the user has a choice whereas with email the messages that the user sends are always private so only the user that has sent to that one recipient can only view it no one else, the message can not be viewed or published as public.