computing science : presentation and multimedia slide 1 revised october 2012 computing department st...

Computing DepartmentSt Andrew’s High

School

Computing Science : Presentation and Multimedia

Slide 1Revised October 2012

Presentation and

Multimedia(Chapter 7)

National 5

Teacher

National 4

8


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Multimedia is the presentation of information by a computer system using graphics, animation, sound and text.

Hello there

Text

AnimationSound

Graphics


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• This presentation uses Microsoft Powerpoint.

• Other alternative multi-media presentation packages are available. E.g.:– Keynote– Pulp Motion


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Presentation packages allow the user to create multimedia slideshows using slides.

The slides are displayed one after the other - this is called linear linkage.

Slide 1 Slide 2 Slide 3 Slide 4

Slides are normally projected onto a wall using a Multimedia Data Projector.


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Advantages of Multimedia Presentations• Presentations can be kept for a number of years• Presentations can be easily updated.• Presentations can be printed out as handouts for the

audience• Animations can be used in diagrams as a visual stimulus

for the audience


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Elements are pulled together to create a presentation.

The elements can include text, graphics, sound, animation and video.

My horse


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Elements are captured in different ways:

Text – entered at the keyboard, copied from the Internet/WP document or scanned using OCR software.

Graphics – copied from Clipart library, from the internet (copyright), or drawn in a graphics package. Charts can be drawn by SS/DB packages. Graphics can also be scanned.

Audio – added from a sound library, downloaded from internet, taken from an audio CD, recorded specifically for your slide. Can be used to animate text and graphics but use sparingly.


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Video – copied from clipart library, downloaded from internet, captured by webcam or digital video camera.

Animation – copied from animation library, downloaded from internet, created in an animation package.

Now do exercise 1 from the Multimedia and Presentation notes.


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We can stop this linear movement from one slide to the next.

Slide 1 Slide 2 Slide 3 Slide 4

Hyperlinks allow the user to move between slides out of the order in which they were created. This is called Navigation of your presentation.

Goto 3


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Hyperlinks can link to:

• a different slide number than the next slide,• to a web page,• back to slide 1 (home slide),• or to another document on your hard disk.

1

http://www.bbc.co.uk/scotland/education/bitesize/standard/computing/


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We have already learned that multimedia is the presentation of information by a computer system using text, graphics sound, animation and video. We can now extend the meaning of multimedia to include animation, video and sound.

Animation Sound

VideoFor Homework - Complete Exercise 1 From the Web Page Creation Ink Exercise Booklet


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We can capture audio in a number of ways ….

InternetSound LibraryMicrophone


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We can capture an image in a number of ways ….

InternetScannerDigital Camera


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Planning a Multi Media Presentation

The first activity in planning a presentation is the creation of a Storyboard.

The Storyboard contains a brief diagram of each slide as well as media element information.

e.g. What size of font for headings and subheadings; which file types, file locations, file names for graphics, sound, video etc; How much storage is required for embedded sound and video.


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TransitionsThis is the name given to the way the screen moves from 1 slide to the next. Examples are Random Transition, box in, box out etc. From your work in S2 you will know your favourite transition.

Animation and SoundAnimation is the way elements of your presentation move onto the screen eg wipe, fly, crawl and peek. Elements can appear a character, one line, or one paragraph at a time. Sounds include drive by, laser, ricochet etc – again you will have your favourites. Elements of your slide show are shown either when the mouse is clicked or after a set time delay.


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FramesVideo and animation is made up of frames. Each frame is a single shot (for example):

– In a video, a frame would be a single photograph,– In a cartoon animation, a frame would be a single drawing

Sequence There may be a requirement to show information in a presentation, or in a web page, in a particular order.For example, when you have text, graphics, video and audio on a slide/web page:

– When loading Text is shownGraphics are shown

– 1 second after loading text Video is played automatically– 1 second after video finishes Audio is played automatically


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Slide MasterIf you want all slides in a presentation to have the same overall style you need to create a slide master. This then controls how the rest of the slides in the presentation look. •The slide master controls font, size, style, and colour. •It has placeholders for footers – eg title and page number.

Changes to the slide master will automatically update all slides in your presentation.

Now do exercise 2 from the Multi Media revision notes.


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Creating VideoA digital video camera can be connected to your computer to allow you to upload video. Presentation packages allows you to insert these video clips (remember webcam clips from S2?)

Video editing software can be used to edit the video before it is used in your presentation. Clips can be rearranged from the order they were shot and music overlays can be included as well as titles and special effects. The video can be output back to the video camera, or can be burned to a writeable DVD. Disadvantage - Video takes up a huge amount of storage. 1 hour video = approx 13 Gb of storage. Currently rewriteable DVDs only hold 4 GB of data.


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Multimedia Authoring PackagesThese can also be used to create presentations. Examples are Hyperstudio and Macromedia Director.

These can be programmed to a greater extent.They can also create stand-alone applications (ie no other software is needed to view the presentation).

Powerpoint is an example of presentation software - when using a powerpoint presentation you always need the powerpoint software in your computer along with the data file you created.


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TemplatesTemplates help speed up the creation of a presentation as pre-drawn slides are available which include placeholders which accept text or graphics. An example of templates:-

Wizard/Assistant – a program which leads the user step by step through the creation of a document. Usually used the first time a presentation is created.


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Delivering a PresentationA multimedia projector is normally used. The flow of the presentation is controlled by the presenter using the mouse or by using a remote control to control it from a distance.

Interactive WhiteboardAn interactive whiteboard (Smartboard) can be used to deliver a presentation. It is linked to the computer and can be used with special pens to ‘write’ on the board. The writing can be saved on top of the presentation and printed out as notes for a class. Alternatively each pupil can have a remote control to interact with the board (chaos!!!!) eg to answer multi-choice questions (a bit like millionaire!!!)


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Delivering a Presentation without a PresenterOnce the presentation is created the creator can set delays between each slide. The presentation can then be run, unattended, normally in a kiosk for information.

File FormatsFinished presentations can be saved in many file formats eg HTML (for the web), JPEG or GIF graphic file formats.

Presenting without Presentation SoftwareMany digital cameras allows slide shows of photographs to be displayed in a slide/screen.

Now do Exercise 3 from the Multi Media revision notes.


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Copy out the Key Points on page 96 of the J Walsh textbook for Homework

For Homework – Complete Ink Exercise 6 from the Web Page Creation Ink Exercise booklet

computing science : presentation and multimedia slide 1 revised october 2012 computing department st...

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