APPLICATION SYSTEM SOFTWARE
SYSTEMS SOFTWARE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Removes data to reduce the file size. When the file is uncompressed, only a part of the original information is still there (There will be some loss of quality). Examples:mp3 and jpeg.
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As the file size is compressed, the quality remains the same-it does not get worse. Also, the file can be decompressed to its original quality. Examples:GIF and FLAC. File sizes are larger than lossy.
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Either A or B
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None of the above
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Detailed explanation-1: -In lossy compression, the data in a file is removed and not restored to its original form after decompression. Specifically, data is permanently removed, which is why this method is also known as irreversible compression. This data loss is not usually noticeable.
Detailed explanation-2: -There are two methods of compression – lossy and lossless. Lossy reduces file size by permanently removing some of the original data. Lossless reduces file size by removing unnecessary metadata.
Detailed explanation-3: -What is lossy video compression? This type of compression decreases the file size by throwing out extra data within the file. For this to happen, image quality is sacrificed as a result.
Detailed explanation-4: -1.1. Lossy compression techniques involve some loss of information, and data that have been compressed using lossy techniques generally cannot be recovered or reconstructed exactly.
Detailed explanation-5: -Explanation: For the lossy compression, the information can be thrown away and still be acceptable.