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❤ DISCLAIMER
❤ Marielle. Yr 10 IST.simply me & what I do in IST...
no taxing aiights. :)
cos i have machine guns! xD
❤ Mae Mae.
I'm Marielle. ❤ 02.05.95
cmac10'ster.
[EST. 210307]
i❤youuuu.
&& thats me.
Term 2 Mini Project- Part 2 Research
This is part two of my half of the research for the mini project. This entry contains my response to question 3.
3. Are there any variations or types?
Routers:
Routers that are used by ISP and major enterprises usually use the Border Gateway Protocol when exchanging information. There are several types of BGP-speaking routers; Edge routers, Subscriber Edge routers, Inter-provider Border routers and Core routers. Edge routers are on the edge of an ISP network and communicate with other routers in another provider or enterprise. A Subscriber Edge router is located on the edge of the subscriber’s network, belonging to an end user organization. Inter-provider Border routers connect ISP’s by communicating with other BGP-speaking routers on other ISP’s. A Core router refers to the router that is in the middle, or is the backbone of the whole network.
Servers:
There are many different types of servers in existence for different purposes. These are as follows;
Server Platforms- The basis and engine that drives the server.
Application Servers- Occupy a large portion of the computing territory between the database server and the end user.
Audio/Video Servers- Brings and enables multimedia on websites for broadcast streaming.
Chat Servers- Enable a large number of users to exchange information through real-time discussions.
Fax Servers- Server used for faxing documents and to reduce incoming and outgoing telephone resources.
FTP Servers- File Transfer Protocol makes it possible to move multiple files securely between computers, providing security and transfer control.
Groupware Servers- Software designed for users to collaborate online, regardless of their location via the Internet.
IRC Servers- Internet Relay Chat consists of various other networks to allow users to connect with each other through real-time discussion.
List Servers- Used to manage mailing lists, one-way lists such as announcements, newsletters or advertising and open interactive discussion.
Mail Servers- Move and store mail over networks and across the Internet.
News Servers- Distributes the source of thousands of public news groups currently accessible.
Proxy Servers- Server that sits between the client and the external server and is used to filter requests, improve performance and share connections.
Telnet Servers- Server that enables users to log onto a host computer and perform tasks without being on the actual physical host computer.
Web Servers- Serves static content to a web browser by loading from files and serving it across the network to the browser.
Saturday, May 30, 2009 - 10:21 AM
Term 2 Mini Project- Part 1 Research
This entry is on my findings for question 1 of the mini project on Routers and Servers.
1. What is it?
Routers:
Routers are networking devices which are designed for routing or steering and forwarding information over networks. A router operates over a control pane, in which the router defines which methods are best for forwarding specific packets to specified destinations, and the forwarding pane, which is responsible for the actual sending of information packets. Large routers interconnect ISP’s on in large enterprise networks and small routers are used in small offices or homes. A router is essential for the existence of the Internet.
Servers:
A server is a combination of software and hardware housed in a computer that allows the Internet’s services to computers and to its users. It serves the requested HTML pages or files to the browser client that is requesting the page or file over the Internet.
Tuesday, May 26, 2009 - 9:33 PM
Term 2 Mini Project- Routers and Servers
In this mini project we worked in pairs to research one of the topics on the list to research in relation to the Internet. I'm working with Tatjana with this task and we're doing our project on Routers and Servers. I'm not sure if we are going to present this project through a PowerPoint presentation or something else, all I know is that I'm working on the presentation and Tatjana's working on the second part of the task, which is the worksheet.
We both have agreed to research two questions each of the four that are provided, which are as follows;
1. What is it?
2. What function does it perform in the context of the Internet?
3. Are there any variations or types?
4. Commonly used for..?
I'm researching questions 1 and 3, and Tatjana is researching questions 2 and 4. Then we collaborate our works into a presentation to complete our mini project.
I'll be posting my half of the research for the mini project in my next blog entry post within the next two days.
Thank You.
Marielle.
- 2:38 PM
Computing Anywhere, Anytime!
This activity is on cloud computing, which is a style of computing where all resources and services are provided over the Internet, as I had explained in my previous post on the future of the Internet.
What is meant by a netbook? What is the “cloud” in cloud computing.
A netbook is a smaller, lighter and more portable version of the laptop. It doesn't have as much capacity in terms of hardrive and doesn't have as much capabilities as the current average laptop. Netbooks are made to run using the Internet for browsing, communications and sharing through the use of web based applications. Instead of storing software and data on the physical computer they are stored on the Internet in a limited amount of allocated space.
Cloud computing, as I've explained in earlier posts is the style of computing where all resources and services are provided through the Internet. The "cloud" within cloud computing refers to the network and hosted services it provides which can be either private or public. Private clouds refers to supplies provided over a network that's protected by a firewall and is available to a limited amount of people who have the correct authorisation. The opposite of this is a public cloud where access isn't limited.
What applications does Google Docs offer online?
Google Docs offers applications to construct Word documents, presentations, spreadsheets and forms online and offers the ability to share and collaborate them anytime you want.
Why would you want your documents stored in the “cloud” (online)?
Storing documents online means that you are able to share and collaborate with other people in a faster and easier way. All your data is stored online so that you are able to access your files anywhere you go on any computer as long as you have an Internet connection.
What advantages do students and teachers find in Google Docs?
- Sharing and collaborations between members are able to happen faster and more conveniently.
- Quick notes can be taken anywhere you are on any computer as long as you have an Internet connection.
- There's no need for intense uploads and downloads.
- Quick and easy to use.
Which netbook, if any would suit your needs? Explain.
The preferable type of laptop that suits my needs would need to have multimedia capabilities, fast Internet, a reasonable amount of memory, fast operating system and a long lasting battery life. Which is why I've chosen the best netbook for me would be No. 2 which is the Asus N10. Though it's a reasonably large size for a netbook, it has a DVD writer, three USB ports, TV output capabilities, webcam and sound system outputs. Through the Nvidia GeForce 9200M chip the netbook is capable of improved video processing than the Intel integrated graphics solution on most other netbooks. Battery life isn't as good as others and lasts about 2.5 hours to 3.5 hours, but it's reasonable for it's capabilities. This netbook is just as portable as other netbooks but also one of the most powerful that it can rival some laptops.
Wednesday, May 13, 2009 - 11:55 AM
Additional: The Future Of The Internet
I've finished all my work up to the first Mini Project, and to pass time for other's to complete their work, I've been asked to research on web based applications such as Google Docs.
The Internet is always evolving and becoming more and more advanced. Currently there are web based applications that are available for use. These applications are a part of the second generation of the Internet known as, Web 2.0.
The point of these applications is that the user is able to work, communicate, share information and collaborate over the Internet instead of working from the computer itself. The data would be stored over the Internet within a limited amount of space, instead of taking up space on your computer. This is the main purpose of a netbook, which is a small portable laptop designed for predominantly Internet browsing and interaction with web based applications. This is called cloud computing, a style of computing where services and resources are provided over the Internet.
Examples of Web 2.0 applications aside from Google Docs are;
- Animoto (online video editing application)
- Picnik (online photo editing application)
- Live Journal (blogging application)
Monday, May 11, 2009 - 9:41 AM
Internet Addresses
1. What is a URL?
URL or Uniform Resource Locator and is commonly known as the web address of a web page.
2. What is an IP address and how is it related to a URL?
Each computer that's connected to the Internet has its own IP address and when you access a web page by entering in a URL, the browser communicates with a name server to turn the name server into and IP address for the computer to connect to the server machine.
3. Given our school web site's URL is http://www.mcauley.nsw.edu.au/, what is our domain name and what protocol do you need to use to access the site?
The domain name is "mcauley" and the protocol used to access our school's site is HTTP which stands for HyperText Transfer Protocol.
4. In the context of an IP address, what is an octet?
The four numbers in an IP address are called octets, as they each have eight positions in binary form and when you add all the positions together you end up with 32. This is also why IP addresses are 32-bit numbers.
Broadband Speedtest
http://www.speedtest.net/
Using the site above I tested the upload and download speeds of the Internet using the school computer that I'm currently working from. The results are as follows;
ISP: Datafast Telecommunications
Download speed: 4.21 Mb/s
Upload speed: 0.57 Mb/s
1. What is meant by upload and download speeds?
2. What are the units used to measure download speeds?
The default setting that's used to measure the download speeds is megabits per second (MB/s), but under the settings option you are able to change the unit of measurement into kilobits, kilobytes and also megabytes.
3. Why do different locations offer different download speeds?
Different locations can offer different download speeds depending on the type of Internet you have, such as ADSL, ADSL2+, cable, DSL and dial-up. From this, if you have any form of ADSL, you share the line with your neighbours and at certain times the usage of the lines peak which slows your download speeds as well as theirs due to congestion on the line, but when using the Internet at off-peak times the download speeds are faster. The speeds can also depend on how far away you are located from your Internet Service Provider (ISP). Usually if you are within 2 kms of your ISP then you should be reaching the speeds that the company you are with claim to be reaching, but if you're located outside of that range the download speeds you are reaching may be lower than claimed.
Wednesday, May 6, 2009 - 10:03 AM
IP Addresses
In this activity we work on IP addresses, and the first part of it asks to determine your IP address. The IP address of the computer I'm working on now is;
202.76.178.178
1. What is an octet?
2. What class of IP address are we using?
The IP address is a part of Class C, which is mostly used for small to mid-sized businesses. The first octet is ranged between 192 to 223, to be part of this class.
- 10:01 AM
Key Terms-The Internet and Web Design
Define the term; Protocol
Protocol-The rules determining the format and transmission of data.
What are the following protocols used for?
TCP/IP, HTTP, SMTP, FTP
TCP/IP- The Transmission Control Protocol/Internet Protocol are used for determining the location of IP packets, whether they've been lost in transmission or not and the format of the data that's being sent over the Internet.
HTTP- The HyperText Transfer Protocol is used between web browsers and servers to transfer web pages and any associated files. It is known as the language of the Internet and is built over the TCP/IP.
SMTP- The Simple Mail Transfer Protocol, is a network protocol used for sending email messages between servers.
FTP- The File Transfer Protocol, is a network protocol that's manages the sending and receiving of files over the Internet.
What does GUI stand for? What was used before GUI?
GUI or Graphical User Interface uses the mouse to be able to navigate, click on icons and to make changes and give commands. Before GUI was in use, Command Line Interface or CLI was used. CLI was used to enter computer commands through text entry as the mouse hadn't been invented for GUI to have been used. CLI can still be used today through the "Run..." option in start up.
There are two methods of data transmission – serial and parallel. Explain the difference between them.
Serial transmission is the sending of data one bit at a time sequentially over a communication channel and is used for all long haul communications over most computer networks. Parallel transmission is the sending of data several bits together at a time over several parallel channels but unlike serial transmission can't be used to cover long distances but the speed of both serial and parallel are the same.
Define the term “URL”. Explain the components that make up the URL.
In the context of data transmission, what is “error detection”?
Error detection is a method that is used to detect errors in the transfer of data. The data is encoded and when decoded should match the original file, which allows for some errors to be detected when they don't match.
Name and explain one common method of error detection.
What is HTML and explain why it is important.
HTML or HyperText Markup Language, is a coded language that is used between servers to describe the text based structure of a site as well as to an extent the appearance and design of the site and without it, websites wouldn't be able to be read.
Tuesday, May 5, 2009 - 9:53 PM
History Of The Internet
How did the Internet originate?
The Internet was created through the Defence Advanced Research Project Agency (DARPA) as they wanted to create a network that was able to quickly transfer information instead of having to send people to journey on and deliver messages. DARPA later joined forces with other corporations such as The RAND Corporation, The National Physical Laboratory (NPL) and CYCLADES, to link networks and create the Internet.
Who were the people most responsible for creating it?
The Defence Advanced Research Project Agency (DARPA), the military corporation called the RAND Corporation, the commercial network of the National Physical Laboratory (NPL) and the scientific network of CYCLADES, created the Internet.
What system immediately preceded the Internet? What was it’s purpose?
The Arpanet was the system before the Internet and was created for the purpose of transferring knowledge and intelligence from one place to another by DARPA.
What is an IP packet? What is it comprised of?
An IP packet is a packet of information that is being transferred through a network. It is split into smaller parts to avoid congestion on the networks that the computers are operating on and are assembled at the receiving end. Some IP packets don't travel along the same route as the others but still end up at the same destination.
What does TCP stand for? How does TCP deal with lost IP packets?
The Transmission Control Protocol (TCP) controls the IP packets over the Internet in various ways from file size, the rate at which packets are exchanged to the network congestion. The TCP also deals with lost packets that may have been caused by an error over the network. The TCP uses a sequence number to track all packets, but when a packet is lost during transmission the TCP allows for the sender to re-transmit the data over the network to be correctly assembled and opened at the receiving end.
Friday, May 1, 2009 - 9:27 AM
Starting Of Term 2
The holidays have finished and now I'm back fresh for a new term of work.....unfortunately.
Even though I wish the holidays were longer I guess I don't really mind being back.
This term we're starting our unit of work based on "The Internet".
We started off last lesson by looking at a bit of the history of the Internet, such as learning about the original Arpanet and how computer and communications technology has evolved over the last few years.
I think this unit of work would be much easier for me than the previous unit on databases and I hope that I do well with it.
Thank You.
Marielle.
- 9:18 AM
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