Friday, July 25, 2008
9:29 AM
Where to this term
AlgorithmA formula used to solve problems. A method used to solve reoccurring problems.
A set of instructions in a certain order used to carry out a precise task. There are two types of algorithm; serial algorithm which are used in linear order for serial execution and parallel algorithm are used with computers with parallel processors. Procedures are parallel.
Links to definitions of Algorithms
http://whatis.techtarget.com/definition/0,,sid9_gci211545,00.htmlhttp://www.wisegeek.com/what-is-an-algorithm.htmhttp://mathworld.wolfram.com/Algorithm.htmlVisual basic
Visual Basic also known as V.B. is a program which allows users to modify and choose sections of the code in the BASIC programming language. V.B. also allows programmers to create codes.
Visual Basic Tutorials
http://www.vbtutor.net/vbtutor.htmlhttp://cuinl.tripod.com/tutorials.htmhttp://www.profsr.com/vb/vbintro.htmhttp://www.devarticles.com/c/b/Visual-Basic/Introduction to JavaScripthttp://www.w3schools.com/JS/js_intro.asphttp://www.howtocreate.co.uk/tutorials/javascript/introduction
Sunday, June 15, 2008
10:24 AM
powerpoint bandwidth
we had to do this powerpoint about topics and the one maxinne and i did was on bandwidth.
we did it ages ago but i forgot to set the link thing.
http://www.slideshare.net/05aelalam/alex-and-maxinne-lookie-here
Thursday, May 22, 2008
10:21 AM
Definition thing for IST
For IST we have to answer questions and place on our blog. These are it, so yeah.
Define the term – Protocol
Protocols are a set of standards which allow computer to computer connection, which are determined by the method used to transmit data between networks and computing devices. The protocol also uses the data compression method to determine when the sending device has finished and how the receiving device has received the message.
What are the following protocols used for?
TCP/IP: TCP/IP also known as the Transmission Control Protocol/Internet Protocol is used to maintain an error free connection between two computers. The IP protocol is used to send data packets over the network.
HTTP: HTTP also known as the Hypertext Transfer Protocol is a protocol which allows browsing to occur on the World Wide Web, by allowing the user to access a hypertext document to bound to another document to retrieve and access information.
SMTP: SMTP also known as Simple Mail Transfer Protocol is used to send mail between servers; from your mail client to a mail server.
FTP: FTP also known as File Transfer Protocol is principle way of transferring files between computers and across the internet. It is commonly used for sending files between two computers.
What does GUI stand for? What was used before GUI?
A GUI also known as a Graphic User Interface is an interface between the user and system which allows the users to enter commands into the computer in a graphic against keystroke method. It is compromised of icons and graphics allowing the program to have a simplistic design to use.
There are two methods of data transmission – serial and parallel. Explain the difference between them.
A serial data transmission (serial output) is a form of data communication in which character bits are sent one at a time through one transmitting path. The parallel data transmission (parallel output) is a form of data transmitting in which bits of data are all simultaneously resulting in fast communication but requires a transmitting path for each.
Define the term “URL”. Explain the components that make up the URL.
The Uniform Resource Locator (URL) is a server used in an HTML to locate documents. The URL is composed of four units:
Scheme: the scheme identifies protocols to be used to access data and information on the internet.
Host: Used to indentify the host that holds resources
Path: Identifies the specific resource within the host which a browsers want access to.
Query String: follows the path component and provides information that can be used for a specific purpose.
In the context of data transmission, what is “error detection”?
Error Detection coding is a systems with various techniques designed to locate misinterpreted messages.
Name and explain one common method of error detection.
Cyclic Redundancy Check (CRC)
A cyclic redundancy check is a function which takes an input of data stream and produces an output with the same value. The Cyclic Redundancy Check can be used as a checksum to locate alterations during the transmission of data.
Friday, April 11, 2008
9:14 AM
Theory of Database Assignment Question 3
3. Draw up word tables to explain how tables (with fields, data types), queries and forms could be used to provide a solution.
Tables within a database organise and categorizes information though the diagram above shows the information categorised but not in order. The items on the table are not shown in alphabetical order, artist order or song order like in table two which show the song order in alphabetical order.
Queries are useful in finding data within forms and present them within a table. In the image of the parameter query if a band or artist is typed in then their information, i.e. songs, albums, genres and so on are viewed like in image 2, the band Paramore was typed into the query and all there information was pulled out.
Forms are used to store information or data. This data is then used to access information on certain data through queries. In form 1 it is the image of the data of the Red Jumpsuit Apparatus and their song, album image and song sample. Queries, Forms and Tables can be used to create solutions as they all can access information. Tables are used to view the information and can provide a solution for someone who is searching for specific information by using a query. Forms help store the data, which holds a solution for a certain query. Queries are great to access information that cannot be found, from simple navigation methods.
9:12 AM
Theory of Database Assignment Question 2
2. Discuss what advantages such a system has over conventional methods of organizing and previewing music?- The data for the music store can be easily accessed with few problems.
- If any error occurs within the database it can be easily updated and fixed making it convenient to constantly update your music for the database music store.
- The data is organised within forms making it easy to access and change without disruption to the system.
- The parameter queries and queries are easy to create and helps allow the user to locate any component of the music store.
- OLE files are easy to upload and no time is taken when uploading them onto the database.
- Databases have data security which does not allow third parties to access it.
- Single set of program which interacts with data files.
- Maintenance is less due to the essential nature of the system which allows the system to be user friendly.
9:10 AM
Theory of Database Assignment Question 1
1. What ethical / legal issues need to be considered when implementing this database? ExplainWhen creating a database especially regarding music, copyright and downloading are key issues. When creating the task students should regard the rights of the artist or band used as well as their music and other files used within the database. These rights include:
Moral RightsMoral rights are the personal legal rights belonging to an individual that cannot be subjectively sold, re-established, transferred or assigned. Which means consent is needed from the creator as well as authorization from the copyright owner to avoid legal action. The creator also has a right of integrity, which is the right not to have their work to be themed to offensive treatment. Offensive treatments include prejudice towards the creator’s honour or reputation, which for example is disfiguring or altering the creator’s product. Offensive treatment has severe consequences.
Copying music files or CDsIn regards to copying music certain laws apply such as music should be copied or recorded only for personal use and not for the use of others. This is difficult as the task requires a music sample for the database which will be viewed be others, and in turn they will be though indirectly using it.
It is illegal if:
- You sell the copy or original file or CD
- Give out the copy or original file or CD
- Air the copy or original file or CD
If any of the acts are committed the original or the copy therefore becomes a violating copy.
Songs used in the database could be accessed illegally through an unlicensed user through the internet and various programs such as Limewire and Morpheus which in turn violates the artist or bands legal rights.
Music and performing arts, 10/4/08,
http://www.copyright.org.au/information/specialinterest/music.htm.
9:09 AM
helloooooooo
This year I am doing IST again for 2008. The above posts are answers to the theory part of the new assignement of Databases. XD
