ITGS Chapter 6 - Multimedia and Digital Media
About this set
Created by:
itgs on April 11, 2012
Subjects:
IT, ICT, Computing, itgs, information technology in a global society
Description:
Key terms for the ITGS topic 'Multimedia and digital media', covering digital images, video, desktop publishing, word processing, and presentations. These relate to chapter 6 of the textbook (www.itgstextbook.com).
Classes:
SHS ITGS, ITGS - Full Study, ITGS 12-13
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93 terms
Terms | Definitions |
|---|---|
 AAC | Lossy file format for audio. |
| alignment | Tools to control placement of objects in presentation or DTP software. |
| AVI | Lossy file format for video. |
| Bit depth | Refers to the number of colours in an image. |
| bit rate | Amount of data used to represent a single sample in a video or audio file. |
| bitmap graphics | Graphics composed of rectangular grids of pixels. |
| blue screen | Technique used to replace part of a video image matching a certain colour with computer graphics. |
| BMP | Lossless file format for audio. |
| buffer | Temporary storage area used to store video or audio data ready for playing. |
| CAD | Technical graphics software used to design products for manufacture. |
| CGI | Graphics created entirely on a computer, using 2D or 3D graphics software. |
| citation | Acknowledge to a piece of work used as a source. |
| cloning | Graphics technique which copies one part of an image to another, often to remove something from the image. |
| colour balance | Graphics filtering for altering the tones and intensities of colours in an image. |
| colour depth | Refers to the number of colours in an image. |
| colour levels | Graphics filtering for altering the tones and intensities of colours in an image. |
| Colour management | Ensuring printed output colours accurately match those on the screen. |
| colour profile | Used as part of colour synchronisation to specify how a device represents colour. |
| Colour synchronisation | Ensuring printed output colours accurately match those on the screen. |
| composite image | Image which was created from several separate images. |
| compression | Reduction in the amount of data used to store a file. |
| Computer Aided Design | Technical graphics software used to design products for manufacture. |
| Computer Generated Imagery | Graphics created entirely on a computer, using 2D or 3D graphics software. |
| copyright | Legal concept which protects intellectual property from authorised copying, alteration, or use. |
| Creative Commons | Licensing system for authors who wish to distribute their work freely. |
| Cropping | Taking a small part (subset) of an image. |
| desktop publishing software | Software used for laying out text and images on pages. Commonly used for books, magazines, and brochures. |
| digital effects | General name for operations performed on an image using graphics software. |
| Digital Rights Management | Software which restricts the actions a user can perform with a file, such as copying or printing. |
| digitisation | The process of converting analog data into digital computer data. |
| DOC | File format for documents, used by Microsoft Office. |
| dots per inch | Also known as printer resolution. The number of dots of colour a printer is capable of producing in a certain amount of space. |
| DPI | Also known as printer resolution. The number of dots of colour a printer is capable of producing in a certain amount of space. |
| DRM | Software which restricts the actions a user can perform with a file, such as copying or printing. |
| DTP | Software used for laying out text and images on pages. Commonly used for books, magazines, and brochures. |
| fair use | Exceptions to copyright law that allow copying in certain limited circumstances. |
| filters | General name for operations performed on an image using graphics software. |
| FLAC | Lossless file format for audio. |
| flipping | Image effect found in most graphics software. |
| footer | Area of a document which appears the same on every page. |
| GIF | Lossless file format for images. |
| GNU Free Documentation License | Licensing system for authors who wish to distribute their work freely. |
| green screen | Technique used to replace part of a video image matching a certain colour with computer graphics. |
| header | Area of a document which appears the same on every page. |
| image editor | Software used to create or edit bitmap graphics. |
| intellectual property | Refers to creations of the mind - non-physical property such as photographs, music, stories, and films. |
| JPG | Lossy file format for images. |
| layer | Technique used in graphics software to place digital images or effects on top of each other to build up a final image. |
| lossless compression | Compression technique in which the original file is completely recoverable, with no loss of quality. Compare lossy compression. |
| lossy compression | Compression technique in which some file data is sacrificed in order to reduce file size. |
| master page | A template page which is used to include standard features (such as page numbers or a header) on each page of a document in a consistent manner. |
| megapixel | Unit used to measure the resolution of digital cameras. Refers to 1 million pixels. |
| MIDI | Musical Instrument Digital Interface. System for communication between musical hardware and software applications. |
| morphing | Effect that transforms one image into another over a series of frames. |
| motion capture | A system used to capture human movement into a computer by attaching sensors to an actor and tracking their location. |
| MOV | Lossy file format for video. |
| MP3 | Lossy file format for audio. |
| MP4 | Lossy file format for video. |
| MPEG | Lossy file format for video. |
| object oriented graphics | Graphics which are stored as a series of mathematical shapes and properties that can be independently manipulated at any time. |
| ODT | File format for documents, used by LibreOffice. |
| PDF | Common file format for the exchange of documents, which appears on screen exactly as it will appear on the printer. |
| pixel | Individual dots which make up bitmap graphics. |
| pixels per inch | Number of pixels displayed in each inch of screen output. |
| plain text file | File format that stores characters using ASCII or Unicode encoding. |
| PNG | Lossless file format for images. |
| Portable Document Format | Common file format for the exchange of documents, which appears on screen exactly as it will appear on the printer. |
| PPI | Number of pixels displayed in each inch of screen output. |
| raster graphics | Graphics composed of rectangular grids of pixels. |
| resolution | Refers to the number of pixels in an image. |
| Rich Text Format | File format for documents, which can store text and some basic formatting information. |
| rotating | Image effect found in most graphics software. |
| RTF | File format for documents, which can store text and some basic formatting information. |
| sample rate | Number of samples taken each second when recording sound. |
| scaling | Changing the size of an image. |
| selection tools | Tools in graphics software for selecting only a subset of an image. |
| streaming media | Video or audio data that is played while it is downloading. |
| SVG | Standard file format for vector image data. |
| template | A page which is used to include standard features (such as page numbers or a header) on each page of a document in a consistent manner. |
| text file | File format that stores characters using ASCII or Unicode encoding. |
| TIF | Lossless file format for images. |
| true colour | Image with 24 bit colour depth. |
| TXT | File format that stores characters using ASCII or Unicode encoding. |
| typography | The proficient use of fonts, font sizes, and font properties such as leading and kerning to display text in an appropriate manner. |
| vector graphics | Graphics which are stored as a series of mathematical shapes and properties that can be independently manipulated at any time. |
| video CODECs (coder-decoders) | Software required to view certain compressed video and audio formats. |
| virtual actors | Animated characters used in films, created entirely using computer graphics software. |
| Vorbis | Lossy file format for audio. |
| watermarking | The process of adding an author name or logo into an image to identify its owner and prevent intellectual property theft. |
| WAV | Lossless file format for audio. |
| WMA | Lossy file format for video. |
| WYSIWYG | What You See Is What You Get. Refers to programs that present their output onscreen exactly as it will appear when printed. |
| zip file | Compressed file format for general data. |
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