Thursday, October 20, 2011

Computer Algorithms.

Algorithms - A process or set of rules to be followed in calculations or other problem-solving operations, esp. by a computer.
Pseudocode - In computer science and numerical computation, pseudocode is a compact and informal high-level description of the operating principle of a computer program or other algorithm.
Machine Language - computer language: a programming language designed for use on a specific class of computers.
High level computer language - A high-level programming language is a programming language with strong abstraction from the details of the computer.
Flowchart - A diagram of the sequence of operations in a computer program or an accounting system.
Sequence - A particular order in which related events, movements, or things follow each other.
Selection - The action or fact of carefully choosing someone or something as being the best or most suitable.
Repition - The action of repeating something that has already been said or written.


Then with the aid of class discussions, write an algorithm for the following processes;
TBC



Sunday, August 14, 2011

Evidence of research into multimedia presentation tools.

Notaland:

Versatility -
  •  Allows you to add text. The text can be re-sized, different colours and fonts.
  • Allows you to add pictures. The pictures can either be added by your hard drive or from different search engines including; google, flickr etc.
  • Allows you to redo and undo your mistakes.
  • You may draw free hand with the stencil tool
  • Add multiple pages.
Ease of use -
  • Easy access if in case you need to do a powerpoint, if you do not have the program installed onto your computer.
  • All necessary tools are already there available to use.
  • Set out plain and simple.
  • Not complicated to use
Collaboration -
  • There is a button that indicates "add more people". I suggest that this button allows you to add more people to make the presentation. This is a great way for doing group activites as it helps make it easier with everyone doing something all at once than just one person doing the presentation.

Monday, August 1, 2011

Broadband Research.

  1. What is   broadband?Of or using signals over a wide range of frequencies in high-capacity telecommunications, esp. as used for access to the Internet.
  2. Outline the methods of delivery of broadband (wireless, cable, ADSL and fibre)? Identify the speed of each method.ADSL - ADSL is a digital connection to the internet that can run up to 30 times faster than a standard modem.
    Wireless - WLANs offer maximum theoretical bandwidth of 11 Mbps. 802.11a and 802.11g WLANs offer theoretical bandwidth up to 54 Mbps. (In contrast, typical wired Ethernets run at 100 Mbps.)
    Cable - Cable modem speeds vary widely. While cable modem technology can theoretically support up to about 30 Mbps, most providers offer service with between 1 Mbps and 6 Mbps bandwidth for downloads, and bandwidth between 128 Kbps and 768 Kbps for uploads.
    Fibre -
  3. Discuss the advantages and disadvantages of each method.
    ADSL:Advantages:
    - Uninterrupted connection
    - Simulataneous data and voice transmission
    - faster speeds over ISDN and dial-up
    - Faster speeds, cheaper costs
    Disadvantages:
    - DSL efficiency is related to distance. The farther you are away from the provider, the more unreliable the service becomes.
    -
    People who need to upload large amounts of data such as corporate database, video, large audio files and images will not find DSL attractive though it is fast.
    -
    There is no standardization. Each company comes with its own equipment. So if you leave one city to go to the other, you may have to purchase a new set of equipment from the new company.
  4. Give examples of broadband providers and identify the cost.
    Optus:Naked broadband plans -
    Cost: $79.99 per month = standard modem + Up to 500GB
    Up to 500GB naked broadband250GB peak + 250GB off peak
    Speed limited for both peak and off peak to 128kbps once peak or total data exceeded.
    Standard modem included, or upgrade to a WiFi modem $120.
    Telstra Big Pond:
    Big Pong Elite 200GB Liberty
    Usage allowance:  200GB (slower than 256kbps)
    Plan Term: 24 months
    Cost: from $69.95
    iiNet:
    ADSL2+ Home - 1
    Peak + Off peak: 100GB + 100GB
    Plan Speed: ADSL2+ Speeds
    Plan Price: $49.95
  5. The Federal Government is thinking of rolling out a national broadband network. Research teh NBN and find out.
    a. What method of delivery it will use? The network would use fibre to the premises (FTTP), fixed wireless and satellite technologies to provide connections. This will be the first time, in Australia that retail service providers are going to be able to access infrastructure that is not owned or operated by a competitors.
    b. The expected speed? Up to gigabyte per second.
    c. The expected costs? The expected costs would include investing $43 billion on the NBN plan. Although the NBN co corporate plan confirmed that the total capital expenditure for the project would be estimated only $35.9 billion. Which is less than the originality thought. It is believe that most of this money will be from tax payers. 



  6.     

     

Sunday, July 24, 2011

The CPU.

  1. What is the function of the CPU?
    The hardware of a computer is the thing that makes the computer run. Without it the computer is just an empty shell. Each hardware has a CPU, which is classified according to the power and its capabilities. Some factors of the CPU of a computer which makes it capable of things others ’t, are the memory, which is measured in gigabytes, the RAM (or Random Access Memory), the processor chip i.e. Pentium chip and the motherboard.  
  2. What was the name of the first CPU?
    Intel 4004
  3. Describe how the speed of the CPU's has changed.
  4. What does MIPS measure?
    It is a method of measuring the raw speed of a computer's processor.
  5. Reaserch (Google it) what is a dual core processor, what is multitasking and how do the two work together.
    A dual core processor is a CPU with two seperate cores on the same die, each with its own cache. It's the equivalent of getting two microprocessor in one.
    Multitasking is the simultaneous execution of more than one program or task by a single computer processor.
    As software developers are coming out with more advanced applications, tasks that computers can perform these days are getting more and more complicated. While you had to go for a coffee brake when burning a CD on Windows 3.11, you can burn a DVD, listen to online radio, and play graphics-intensive games at the same time today. Multitasking is as natural today as breathing, but it also requires more power and speed than ever before.
  6. Benefits of what the Intel Atom Processor offers to mobile devices.- A new range of power effiency devices.
    - Highly integrated application processor
    - Smaller, more compact design
    - Lower power option
    - Better performance and increased system responsiveness

     


    Monday, July 18, 2011

    The World of Multimedia.

    1. Where do you commonly use multimedia? in your daily life, list as many as you can.- Home
      - School
      - Workplaces
    2. What multimedia device or service would you find it hardest to be without?I could not live without my laptop. It's my life (literally), I store nearly everything onto my laptop, starting from music, videos, movies, school documents, EVERYTHING. I search the web with my laptop every single day and communicate with other people. Without my laptop I wouldnt not what I would be doing right now. (lol)
    3. The video on future directions (third video) has already to some extent come true. What multimedia technologies displayed in this video are already commonly used?
    4.  Do you see any advantages/disadvantages to the use of such multimedia technology?
      TBC

    Thursday, June 30, 2011

    Sypnosis.

    The goal and purpose of our video is to create our own version of the music video.

    17611.

    On Friday the 17th Laura and I started to film with the help of our other cast/member Jo-Raelene and Erica. For our film we had originally planned on making a sequel to the first song, but decided to not go on with that plan because we didnt have enough scenes.

    First we had filmed the beggining scenes for the song "you & i" at a park. We made sure that it was the evening so we can have a good effect on the video. We then filmed some scenes of the music video inside (we filmed in the order of the music video). We had also filmed the sqeual which is "dont cry" by park bom, which she also sang "you and i".

    Story Board.

    Monday, June 27, 2011

    Introduction To Video Notes.

    What are some advantages of digital video?
    • Enhanced learning as moving pictures with sound are more effective than stills.
    • Footage can be updated or changed with ease.
    • Digital video adds a whole new dimension to presentations as it can be easily incorporated into computer presentations.
    • With network capabilities, presentations can be distributed easily.
    What is meant by frame rate in video?
    The frame rate determines how many images are displayed every second a movie is played. The higher the frame rate, the better quality/smoother.
    Are all videos/movies the same frame rate, explain your answer.
    No, 


    TO BE CONTINUED.

    Extention One: Video editing software.

    Sony Vegas Pro 10.0
    • Vegas does not require any specialized hardware to run properly, allowing it to operate on almost any standard Windows computer across a broad range of hardware.
    • Designed for Windows 7, XP, Vista
    • Vegas was the second NLE that allowed users to put a variety of formats on the timeline and just edit them. Other NLEs would require the user to render or "conform" these down to a single format. Vegas Video 1.0 had this in 2000. Final Cut Pro got this feature in 2007 with FCP 6.
    • Vegas was the first NLE with "serious" audio tools, such as integrated 5.1 surround mixing, 24-bit/192 kHz audio support, and ASIO driver support.
    • Dolby Digital surround sound mixing
    • Price: $579.99
    iMovie:
    • iMovie imports video footage to the Mac using either the FireWire interface on most MiniDV format digital video cameras, the USB port, or by importing the files from a hard drive.
    • The user can edit the video clips, add titles, and add music.
    •  Effects include basic color correction and video enhancement tools, and transitions such as fade-in, fade-out, and slides.
    • iMovie is a proprietary video editing software application which allows Mac, iPod Touch 4th generation, iPhone 4 and iPad 2 users to edit their own home movies.





      Planning Your Project.

      Gantt Chart:


      Installing Audacity - A Portable Audio Editor & Recorder

      1. What is a portable application?
        A portable app is a computer program that you can carry around with you on a portable device and use on any Windows computer. When your USB flash drive, portable hard drive, iPod or other portable device is plugged in, you have access to your software and personal data just as you would on your own PC. And when you unplug the device, none of your personal data is left behind.
      2. The advantages of portable applications.
        - They are free and open source, and are developed by people who are excellent programmers.
        - You can carry your files and programs with you everywhere.
        - A better way of installing onto your computer.
      3. The types of software available as portable applications.
        - Marble Portable: virtual globe and atlas
        - BPB Portable: bible study tool
        - NSIS Portable: Windows installer and launcher creation
        - Notepad2 Portable: simple, lightweight text editor

      Friday, June 24, 2011

      Uploading Video from a phone.

      • To transfer files such as images and video onto my laptop/computer I connect the phone cable to the usb slot on the computer/laptop. A hard disk drive would then appear eg: "KeithMae's Phone". To then transfer onto your computer you click into the files that are stored onto the device, then simply drag and paste.
      • Equipment you would need:
        Phone, USB cable, Laptop/Computer
      • Image file type: JPEG

      Tuesday, June 14, 2011

      Data Compression.

      1. What is data compression?
        Data compression, source coding or bit-rate reduction is the process of encoding information using fewer bits than the original representation would use.
      2. What is a data compression ratio?
        Computer science term used to quantify the reduction in data-representation size produced by a data compression algorithm.
      3. Why is data compression an important technique for the online world?
        Because users want faster downloads so minimizing the file size will increase the speed.
      4. What is the difference between Lossy and Lossless data compression?
        Lossy image compression is used in digital cameras, to increase storage capacities with minimal degradation of picture quality, Whilst  
        lossless is in contrast to loss data compression which only allows an approximation of the orginal data to be reconstructed, in exchange for better compression rates. 
      5. Which method offers the greatest compression ratio?Lossless data compression.
      6. Why is human psychology and perception an important factor in methods of Lossy compression?
        Methods of psychoacoustics are used to remove non-audible (or less audible) components of signal. Compression of human speech is often performed with even more specialized techniques, so that "speech compression" or "voice coding" is sometimes distinguished as a separate discipline from "audio compression". 
        Name Lossy file formats for audio, still image and video format.
        Mp3, JPEG and Mpeg. 




      Audio Sampling Rate and Sampling size.

      1. Sound moves through what medium?
        Sounds are pressure waves of air. If there wasn't any air, we wouldn't be able to hear sounds. There's no sound in space. 
      2. What is used to measure sample size?
        Bits
      3. What unit is used to measure sampling rate?
        Hz (hertz)
      4. Compare the quality of AM, FM and Digital Radio.
        AM radio ranges from 535 to 1705kHz.
        FM radio band goes from 88 to 108 MHz.
        Digital radio has frequencies below 30MHz.  

      New Terms relating to audio files

      1. Stereo: Stereo is when sound that is directed through two or more speakers, is then surrounding the listener and to come from more then one source. 
      2. Channel: A path over which electrical singles can pass. 
      3. Track: Track is when either a song has been pre-recorded and then able to listen to it either on media player or anything else. A track is a song that is in the format either MP3 or any other type of audio file. It is also a distinct selection of music from a recording or a compact disc. 
      4. Frequency: The rate at which something occurs or is repeated many times, or over a period of time. This is the number of times a particular type of music or sound can occur. 
      5. Hertz: The SL unit of frequency that is equal to a cycle per second. 
      6. DecibelA unit used to measure the intensity of a sound or the power level of an electrical signal by comparing it with a given level on a logarithmic scale. 
      7. Wav: Short for Wave Form Audio File Format is a microsoft audio file format standard for storing an audio bitstream on PCs. 
      8. Mp3: A means of compressing a sound sequence into a very small file, used as a way of downloading audio files from the Internet. 
      9. Aiff: Audio Interchange File Format, is an audio file format standard used for storing sound data for personal computers and other electronic audio devices.

      Broadband and Bandwidth.


      1. What is broadband?
        Broadband Internet access, often shortened to just "broadband", is a high data rate connection to the
        internet.
      2. What units are used to measure bandwidth?
        bits (b or bit), kilobits (kb or kbit), megabits (Mb or Mbit), gigabits (Gb or Gbit) or megabytes (MB), megabytes per second (MBps or mbps or Mbps) and megabits per second (Mbit/s or mbps or Mbps). There are approximately 1000 kilobits per one megabit and there are eight bits (b) per byte (B). (Which means a megabyte is much much bigger than a kilobit).
      3. How much faster is broadband than dial up?
        1000 mega bits per second.
      4. What are the speeds that broadband operates at compared to dial up?
        Dial up is considered to be just below a megabit per second and broadband can go from over 1 megabit per second to over 1000 megabit per second.
      5. What are some of the advantages of using a broadband connection to download something like a video compared to a dial up?
        Connection speed is up to 100 times faster than dialup connection.  You can download pictures files, software in seconds or minutes instead of hours.  Online gaming is only possible using a broadband internet access. Compared to the dial up it does not have a wide range of frequencies that can be transferred through the internet.
      6. Create an image on paint that illustrates how a high bandwidth connection can move more data compared to a dial up connection at a given time.



          

      Wednesday, March 30, 2011

      Problems.

      The many problems I had throughout the process of the animation was when it was time to export the image. I had forgot to change it to "page", It had automatically been on "selection" therefore I had to restart my image whenever I encountered that mistake.

      Another was when I lacked in motivation of creating a picture of Po riding on a scooter. It was too difficult for me to succeed, so I just got a picture from Google, the picture of Po on a scooter does not belong to me, it belongs to the rightful owner. The image was originally a GIF file but I converted it into a JPEG so I could use it in my animation.

      Process of animation.

      The process of my animation is bascially Po from the teletubbies which represents Veritas because of his colour is cycling from top to bottom with the letters which form Veritas behind it. Throughout the whole process I had used 67 frames all together.

      First I had placed a photo of po, I couldn't draw po because it was really hard when I tried to attempt it. The I had exported it as a .png file and moved onto my next one. I had then put a text "V" slowly coming out from the right hand side behind the the picture of Po, I had continuously did the same thing with the other letters with stars in between them to have spacing so they wont be bunched up. I had also placed a sun at the top for some decoration too. In each frame the sun is moving as well. As all the letters and stars were displayed, I then made Po go up and around in a route followed by the other letters and stars. I had specifically made the route go in a circle so when Po and the letters exit it would be much easier instead of making difficult turns which will be time consuming. I made sure each star and letter were right in lined with each other from behind so that it wont look messy.

      As it did it's route I made the exit similar to the entrance, Po and the letters would just disapear. I did this for every letter and star. After that was done I made the star get larger and eventually splat onto the screen for some effect. I had just played around with the tools while I did my animation, I had gained some knowledge while doing this animation.

      This is a sample throughout the progression of my animation:

      Monday, March 28, 2011

      Year 9 Still to moving assessment task.

      
      Describe what software you used and why you chose it.
      For my animation I chose the software Inkscape for my assignment. I chose it becuase it was quick and easy to use for my animation. It wasnt complicated throughout the process and its user friendly.
      What image format were you saving your work in during development of the frames?
      The image format i saved my images during the development of my animation was SVG
      What image format did you save your frames as?
      I had saved them as .png
      What frame rate were you aiming for?
      I was for a frame rate of 100+
      What is the final size of your animation?
      The final size of my animation is 1.05MB

      Thursday, March 10, 2011

      Digital Art.... Real Art?

                                                        http://artpad.art.com/artpad/painter/
      The features I liked about artpad.com is that you can change the brush sizes and replay over what you had painted.
      Art definitions:
      Ahromatic -
      Black, white and greys. Artwork that is executed without color.

      Acrylic - Thicker and stronger than tempera or watercolor paint, Acrylic is a water-based "plastic" paint.

      Albumen Print - This printing process is used in photography printing processes. Egg whites are used in the emulsion.

      Alternative Process - This photography term covers approximately 35 different processes for the final unconventional effect.

      Armature - A structure used beneath something else for support. For example, a sculptor might create a clay sculpture with a wood or wire armature beneath it as support. Think about the frame of a house being constructed before all of the brick or siding is built on top.

      Artists Proof - A small group of outstanding prints for the artists use which have been set aside from the edition prints.
      Is digital art a valid form of art?Art is normally an opinion in it's self. Some consider music or dance an art form while other wouldn't. But an opinion was brought to my attention today that some people consider digital art, weather it be drawn works or photos that have been manipulated and taken useing computer technology. Someone claimed that it lacked "human touch" and failed to have that link to the soul. But if that is the case, is a poem that has been typed on the computer and posted through say an art forum or a website not art? Someone took the time to make something beautiful, as to weather others find it beautiful is another matter. But someone has made a creation, is it art or not? after all they did not sit and touch their computer screene or mark the screen up with a red pen. No human touched it, no person can reach out and feel it with their fingers. But isn't it still art?
      The claim was that art on a computer relied too heavily on a programs ability to take a simple skill and turn it into work equivilent of Da Vinci or Picasso. I'm not saying anything against the classics, they are wonderful, but it requires skill to use a program and produce a work just as it takes a different skill to take a brush and put color to canvas.
      What are some of the advanatges that digital paint and draw programs offer over the traditional methods (canvas and paint)

      The many advatages of digital painting is that you can undo and redo your mistakes unlike traditional painting there is no option, it is hard to undo. Some tools such as pencils and charcoal allow you to erase. Some may let you paint over your mistakes – oil painting. But they are nothing compared to the control given in the digital painting. Another is Layers. Digital softwares let you organise your layers. This allows for greater control in terms of edits and corrections. This cant be made using traiditonal mathods. Colour pallete  is another great advantage, you may use a wide variety of colours that can contain at least a million colours. Another great extent is that you can choose your colours accurately unline traditioanal painting methods. The last advantage is canvas size. In digital painting the canvas size in only limited depending on your computer memory and size.  To an extent, traditional medium lets you choose large canvas sizes but like with digital medium, you cannot change the size half way through you artwork – you will have to decide and stick to a size once you start in traditional mediums.

      Sunday, March 6, 2011

      Digital Media.

      First lets see if we can list how many forms of digital media surronds us (you should be able to come up wih at least 5)
      • Digital Television
      • Internet (web)
      • Computers
      • Video games
      • Video Cameras
      What number system is digital data based on? What two digits are used to code all digtal data?
      A digital computer represents data using the binary numeral system. Text, numbers, pictures, audio, and nearly any other form of information can be converted into a string of bits, or binary digits, each of which has a value of 1 or 0. The most common unit of storage is the byte, equal to 8 bits.

      What is a bit? What is a byte?
      The byte, is a unit of digital information in computing and telecommunications, that most commonly consists of eight bits.
      A bit or binary digit is the basic unit of information in computing and telecommunications; it is the amount of information stored by a digital device or other physical system that exists in one of two possible distinct states. These may be the two stable states of a flip-flop, two positions of an electrical switch, two distinct voltage or current levels allowed by a circuit, two distinct levels of light intensity, two directions of magnetization or polarization.

      What is "sampling rate"? Find an image that explains how how sampling works (wikipedia is a good resource here... you can place these images in your blog)
      The sampling rate, sample rate, or sampling frequency defines the number of samples per second (or per other unit) taken from a continuous signal to make a discrete signal. For time-domain signals, the unit for sampling rate is hertz. The inverse of the sampling frequency is the sampling period or sampling interval, which is the time between samples

      How does colour depth (Colour Depth) or bit depth effect the appearance of an image? Find some images to illustrate the effect.             
      Color Depth refers to the number of bits (binary digits) of computer memory that are used to store color information for an image (typically a bitmap) or for a device (such as a screen).
      The greater the color depth, the more colors may be stored, and this also determines how many different colors the image or device may simultaneously contain/display


      Colour Depth effects both still and video digital media. Sampling rate only effects video but not still media. Can you explain.
      Sampling rate only affects video as it takes the sample per second, a video is a moving image and therefore the sampling rate would take the images per second. However colour depth only affects still and video digital media. Nothing is produced in still images and therefore a sampling rate is not affected.
      

      Monday, February 21, 2011

      Painting Tools.

      Paint Tool Bar


      Shapes - This tool is for creating different types of shapes. You may expand them or make them small. You may also fill them with different colours.



      Brush Tool - This tool is used for drawing using different types of brushes with different attributes.


      Pencil Tool - This tool is also used for drawing but has a different attribute compared to the brushes. You may also use different colours while drawing.
      Fill With Colour Tool - This is used for filling in a certain area with a solid colour.


      Text Tool - Used for inserting text.

      Eraser Tool - Used for erasing certain areas of drawings etc.


      Colour Picker - Used for picking a colour for the picture & for drawing.

      Magnifier Tool -  Used for magnifying objects or text etc.

      Tuesday, February 8, 2011

      Graphic Terms.

      Animated Gif - Set of pictures saved in one GIF-compressed document. When the document is opened, the pictures are shown in a predetermined sequence and speed.

      JPEG - In computing, JPEG (, ) (named after the Joint Photographic Experts Group who created the standard) is a commonly used method of lossy compression for photographic images. The degree of compression can be adjusted, allowing a selectable tradeoff between storage size and image quality.

      Pixel - The smallest discrete component of an image or picture on a CRT screen (usually a colored dot); "the greater the number of pixels per inch the greater the resolution".

      BMP - The BMP file format, sometimes called bitmap or DIB file format (for device-independent bitmap), is an image file format used to store bitmap digital images, especially on Microsoft Windows and OS/2 operating systems.

      Flip - To toss or put in motion with a sudden impulse, as with a snap of a finger and thumb, especially so as to cause to turn over in the air.

      Video Card - A video card, video adapter, graphics-accelerator card, display adapter or graphics card is an expansion card whose function is to generate and output images to a display.

      Crop - Computer wise, To trim the edges to produce a smaller picture whilst keeping the same scale. ie cutting bits off.

      Mirror - Computer wise, a mirror is an exact copy of a data set. i. e On the internet there can be a site with the exact crednetials.

      FPS (frames per second) - Frame rate, or frame frequency, is the frequency (rate) at which an imaging device produces unique consecutive images called frames. The term applies equally well to computer graphics, video cameras, film cameras, and motion capture systems.

      Frame -  a single one of a series of still transparent pictures forming a cinema, television or video film.

      Morph - cause to change shape in a computer animation; "The computer programmer morphed the image".

      CPU -  central processing unit: (computer science) the part of a computer (a microprocessor chip) that does most of the data processing; "the CPU and the memory form the central part of a computer to which the peripherals are attached".

      DPI - Is an abbreviation for dots (or pixels) per inch, a measure of the resolution of graphic displays.

      Resolution - The number of pixels per square inch on a computer-generated display; the greater the resolution, the better the picture.

      File extension - A filename extension is a suffix to the name of a computer file applied to indicate the encoding convention (file format) of its contents.

      Compression - A filename extension is a suffix to the name of a computer file applied to indicate the encoding convention (file format) of its contents.

      Frame Buffer - A buffer that stores the contents of an image pixel by pixel.

      Colour Depth - Color depth or bit depth, is a computer graphics term describing the number of bits used to represent the color of a single pixel in a bitmapped image or video frame buffer. This concept is also known as bits per pixel (bpp), particularly when specified along with the number of bits used.