What is file compression?

File compression refers to the process of reducing the size of a file to make it easier to store and transmit. This is accomplished by encoding the data in a way that takes up less space than the original file. Compressed files are particularly beneficial when large amounts of data need to be sent over the internet or stored on limited-capacity devices, as they require less bandwidth and storage space.

By reducing the size of files, compression helps improve efficiency in data management, making it faster to upload or download files, and allowing for more data to be stored within a given physical or virtual space. This is widely used in various applications, from document management to media files, ensuring that users can handle large data volumes without the corresponding increase in storage requirements.

The other options involve different aspects of file handling. While file security is important, compression does not inherently increase security; it merely reduces file size. Similarly, organizing file structure pertains to how files are arranged on a storage device, rather than the size of those files. Data retention is a concept related to how long information can be stored effectively, regardless of whether or not the files are compressed. Overall, the essence of file compression lies in its primary function of reducing file size.