UNDERSTANDING COMPUTER FILES
FILE SYSTEMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Reencoding a file to consume less storage space.
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The process of converting information so it cannot be understood without decrypting it using a key, especially to prevent unauthorized access.
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The way a file is organized. File formats are indicated by an extension such as .jpg, .gif, .png., .mp3, .wav, .wma, .mp4, .avi, and .wmv.
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The methods and structures that an operating system uses to organize files on a storage device like a hard drive. File systems often use directory structures to keep track of files.
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Detailed explanation-1: -Data compression is the process of encoding, restructuring, or otherwise modifying data to reduce its size. Fundamentally, it involves re-encoding information using fewer bits than the original representation.
Detailed explanation-2: -By compressing a file, data takes up less space, and files can be sent and received a lot more quickly.
Detailed explanation-3: -How File Compression Works: Lossy Compression. Lossy compression reduces file size by removing unnecessary bits of information. It’s most common in image, video, and audio formats, where a perfect representation of the source media isn’t necessary.
Detailed explanation-4: -File compression is a method of data compression that reduces the logical size of files to save disk space for easier and faster transmission over the network or Internet. It can create one or more versions of files with the same data that are much smaller than the original file.
Detailed explanation-5: -Data compression is a reduction in the number of bits needed to represent data. Compressing data can save storage capacity, speed up file transfer and decrease costs for storage hardware and network bandwidth.