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IPT HSC > Multimedia Systems > Flashcards

Multimedia Systems Flashcards

1
Q

what are the seven types of media

A

Text

Hypertext

Numbers

Audio

Images

Animation

Video

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2
Q

what the different modes of display

A

Screen

Speakers

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3
Q

what is the main advantage of multimedia over print

A

Multimedia allows for more interaction with the content and display the information in a more variety of options than print

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4
Q

What types of media are involved with storing

A

Images

Audio

Video

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5
Q

what is the formula for Image storage

A

File size = (Horiztonal x vertical x bit depth) / 8

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6
Q

how to convert file sizes from bytes to kb

A

divide by 1024

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7
Q

what is sampling rate

A

the number of times a sample is taken of sound

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8
Q

what is bit depth

A

the number of bits per pixel. This is determine by how many colours are possible in the image

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9
Q

what is the sample size

A

the bit resolution of each sample

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10
Q

what is the formula for Audio Storage

A

File size = (Sample rate x Sample x time)/8

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11
Q

what is the frame rate

A

the number of frames of the video shown each second

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12
Q

what is the formula for video storage

A

File size = Frame rate x time in seconds x frame size

note that the frame size is calculated the same way as an in image

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13
Q

what is the difference between mono and stero audio files

A

stero audio files have double the size of mono files

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14
Q

what are the two types of animations

A

Cell-based and path-based

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15
Q

what is cell-based animation

A

involves drawing and displaying individual frames or cells. Each frame is stored separately and loaded into a graphics page of primary memory. It is the traditional method of animation

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16
Q

what is path-based animation

A

it involves displaying the movement of objects onto a fixed background in a particular sequence or path. the pixels in the background do no change, only those for the moving object. This saves memory and processing time. This is done by a process called tweening which generates the itermediate frames between two objects in computer animation from the path.

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17
Q

What is morphing

A

it is the smooth change between two different images. It changes the shape, size, dimension, and colour of one image into those of another.

18
Q

what is warping

A

warping involves transforming or distorting a portion of the image. it divides the image into objects that can be manipulated

19
Q

What are some people in multimedia systems

A

Content providers

System designers

Project managers

Technical staff

20
Q

What is a content provider

A

They are people who provide the material for the multimedia product. This may include text, graphics sketches or final drawings, video footage and audio tracks

21
Q

What is a system designer

A

plans and organises the hardware and software required for the presentation

22
Q

What is the project manager

A

organises the scheduling of various components of the
product, provides overall supervision of the
components and ensures that all components are delivered on time.

23
Q

what is technical staff

A

includes a variety of artists and technicians who edit the graphic and video material, text and all other material into appropriate formats for the final document. It also includes layout and design personnel who work to develop an overall theme and look of the product

24
Q

What are the major areas of multimedia systems

A

Education and training

Leisure and entertainment

Information

Vitrual reality and simulations

25
Q

What are education and training multimedia systems

A

They are multimedia systems that are very effective system that help people to learn. A good multimedia product users different media types to maintain te user’s interest. An example product is Computer-based training products.

26
Q

What a Leisure and entertainment Multimedia systems

A

they are multimedia systems designed for leisure and entertainment. They are generally computer games.

27
Q

What is Virtual realtiy

A

VR for short, is the use of computer modelling and simulation to enable a person to interact with an artificial envrionment. an example of multiemdia systems of VR and simulations are Flight simulations.

28
Q

What are three design priniciples

A

Consistent

Navigation

Simple

29
Q

What are the three accepted design principles to format text.

A

Characters: avoid using too many fonts

Screen layout: Appropriate conventions exist for column width, alignment, line spacing, character spacing, indentation, hyphenation and kerning

Text colour: Colour contributes to the style and theme of a multimedia product and draws attention to the text.

30
Q

What are the different Screen technology

A

Cathode ray tube (CRT)

Liquid crystal displays (LCD)

Organic Light-Emitting Diode (OLED)

Touch screens

31
Q

What the three different types of projectors

A

Digitial Light Processing (DLP)

Liquid Crystal displays (LCD)

Liquid crystal on silicon (LCos)

32
Q

What are the four types of doccumentation for Presentation Software

A

On-screen presentations

Audience handouts

Overhead Transparencies

Speaker’s notes

33
Q

What is on-screen presentations

A

they are slides displayed on a monitor or projected onto a screen.

34
Q

What is audience handouts

A

They are images of two or more slides on a page that are given to people who attend the presentation.

35
Q

What is Speaker’s notes

A

they are the notes the speaker needs when discussing the slides.

35
Q

What is Overhead transparencies

A

They are slides printed as an overhead transparency in black and white or in colour using either portrait or landscape orientation.

36
Q

What is a transition

A

it is special effect used to change from one image or screen to another.

37
Q

What are the different application software

A

Word processors

Spreadsheets

Graphics software

Audio software

Video software

Project management software.

38
Q

What is application software

A

it is software that is used for a specific task.

39
Q

What is authoring software

A

It is software used to combine text, graphics, animation, audio and video into a multimedia product. The software also allows the user to create interactivity.

40
Q

What is animation software

A

Software that takes individual images and creates the illusion of movement

41
Q

What is the difference between a Bitmap graphic and a Vector Graphic

A

A Bitmap graphic is comprised of a collection of bits where as a Vector graphic is created using mathematical definitions.

Bitmap images become distorted and pixelated when resized whereas Vectors can be scaled withouth any loss in quality.

IPT HSC (5 decks)

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