Here is a simple explanation you can use: **Lossy Compression** Lossy compression reduces file size by permanently removing some data. This makes the file smaller, but some quality is lost. The goal is to make the file much smaller while keeping it looking or sounding “good enough” for people to use. **Examples of lossy file types:** * **JPEG / JPG** for images * **MP3** for audio * **MP4** for video **Example:** When you save a photo as a **JPEG**, some image detail is removed to make the file smaller. If you compress it too much, the picture may look blurry or blocky. --- **Lossless Compression** Lossless compression reduces file size without removing any original data. This means the file can be restored exactly as it was before compression. The quality stays the same. **Examples of lossless file types:** * **PNG** for images * **GIF** for simple graphics/animations * **FLAC** for audio * **ZIP** for compressed folders/files **Example:** When you save an image as a **PNG**, the file size may shrink, but no image quality is lost. It stays sharp and exact. --- **Simple comparison:** * **Lossy = smaller file, some quality lost** * **Lossless = quality kept, file usually larger than lossy** If you want, I can also turn this into a very short student-friendly classroom handout version.