DATA PORTABILITY
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- Created by: mnethery566
- Created on: 26-01-18 14:45
JPEG joint photographic experts group(image file t
- compressed,bitmapped image file type
- keeps file size low by reducing repetition of pixel patterns
- doesnt support animation or transparency
- originally designed for photographs
- the higher the compression the lower the file size can be achieved.
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GIF graphics interchnage format
- compressed,bitmapped image file type
- animate sequences of images or singular still images
- can contain transparent pixels
- low file sizes from restrictingthe colour depth to 256 colours.(8-bit)
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PNG portable network graphics
- compressed, bitmapped image file type
- designed for online sharing
- supports transparency but not animation
- doesnt use CMYK colour mode which is linked to ink printers.
- emplot lossless compression techyniques
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TIFF tagged image file format
- created for microsoft and apple systems
- used as standard file type in commercial printing
- holds images of other file types
- highly complex structure
- uses lossy and lossless compression techniques
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PICT
- developed by apple as their native graphic file type
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TXT text
- stored as plain text files
- will store characters strings that can be readily viewed and edited by the user
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CSV comma separated values
- text file type
- data is structured in a tabular manner
- will have a common structure in each row
- are plain text files that can be edited, read and created by the user
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RTF rich text information
- text file
- used for a text based documents and supports basic formatting
- allows moment of text files between different word processors and different operating systems
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PDF portable document format
- text file type
- holds text, formatting, images and potentially some editable regions
- can be used with many applications
- can be downloaded for free
- created using a save, print command
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WAV windows waveform
- sound file type
- provides a close likeness to the original analogue sound
- a wide range of programs are available for manipulating WAV files
- recording sounds can be done done at a very high sample rates
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MP3 mpeg audio layer 3
- sound file type
- uses lossy compression techniques
- human ear doesnt generally hear
- music industry professionals tend not to use because of the deterioration is unacceptable
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WMA window media audio
- sound file type
- audio file format developed by microsoft to compete with MP3
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MIDI musical intrument digital interface
- sound file type
- captured via a senal interface connected to an electronic muscial intrument
- data can be recieved and sent from the serial interface along MIDI channels
- includes standard MIDI codes that represent the instrument used, the tempo, pitch, duration and volume of musical notes
- format for interchange of sound data
- effectively a series of commands intructing the computer how to play back to sound
- is only transmission for the sound clips as MIDI is not storage for sounds.
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MPEG moving/motion picture experts group
- video file type
- widely used video file format
- uses delta compression-transmitting info about pixels that change between vselecteed frames of a video.
- to sustain video quality a whole frame is transmitted at less frequent intervals.
- can be used on optical disks for various video resolutions and playback window sizes.
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MP4 mpeg-4 part 14
- video file type
- designed for digital streaming over the internet
- stores and plays digital audio with video
- encompasses MP3 tech in its lower layers-MP3 can be played on a MP4
- supports subtitling and noline streaming
- lossy compression is used to reduce large video file sizes
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AVI audio video interleave
- video file type
- supports multiple video adn audio streams playing back from 1 file
- no comprssions is added this sustains their orginal quality and eliminates the use for codecs, but leads to higher file size until compression is added
- do not swotre ratio of width-to-height for playback
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