What does a codec do regarding data conversion?

A codec, which stands for coder-decoder, is utilized in the realm of data conversion primarily for audio and video signals. Its main function is to provide a mechanism for encoding and decoding data, allowing for effective transmission and playback of multimedia content.

The role of a codec encompasses both the conversion of analog signals into digital formats and the reverse process of taking digital signals and converting them back into analog form. This dual functionality is essential in various applications, such as streaming audio and video, where content must be compressed into a digital format for storage and transmission while also being able to be played back in an analog format through speakers or monitors.

Correctly understanding the full capacity of a codec highlights its importance in ensuring that users can seamlessly interact with both analog and digital media, making the correct choice - that a codec converts both analog data to digital and digital to analog - clear and accurate.