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JPG's not too bad but GIF is terribly lossy
MP3
Explain the various file-accessing techniques in data management system. Also state the advantages and limitations of each technique
The audio file won't sound good.
fxdhgjy ghjgvvh vvhbbhc jhbgjb bbcckjgk vlgk vkj
Advantages of vector scan display include high resolution, smooth lines, and efficient use of memory. Disadvantages can include limited color capability, complexity in generating images, and susceptibility to distortion with complex shapes.
fxdhgjy ghjgvvh vvhbbhc jhbgjb bbcckjgk vlgk vkj
Advantages of indexed-sequential file organization include efficient access to records through an index and sequential storage for faster retrieval. However, disadvantages may include increased complexity in managing the index and potential performance degradation due to index maintenance overhead.
Some advantages are:large files start to play (stream) before entire file downloadedplayers are freeSome Disadvantages are:need streaming server to hostquality limited by bandwidth
File-based systems are low cost and do not need external storage or somebody that is extremely knowledgeable in technology. Disadvantages include data duplication, lack of flexibility, and a lack of security.
There are a ton. Most things that use wavelets to encode the data fall into this category. Often the same file format and "extension" can have multiple actual encoding mechanisms on the inside, so it might sometimes have lossy compression and sometimes not. Examples of file formats with lossy compression include mp3,jpeg and mpeg. Container formats like avi, and wma sometimes do and sometimes don't.