Final answer:
Compression programs reduce file size and improve efficiency for Internet transmission by discarding unnecessary information. However, too much compression can lead to a decrease in photo quality.
Step-by-step explanation:
Compression programs reduce the size of files so they require less storage space and can be sent more efficiently over the Internet. One example of a compression program is the JPEG compression process used for photo files. This process discards unnecessary colors to reduce the file size, but it can lower the photo quality if too much compression is applied.