Graphics file formats are standardized means of organizing and storing digital images. These formats determine how data is compressed and rendered on a screen.
| Format | Full Form | Best Used For |
|---|---|---|
| JPEG | Joint Photographic Experts Group | High-quality photographs; uses lossy compression. |
| PNG | Portable Network Graphics | Web graphics with transparency; uses lossless compression. |
| GIF | Graphics Interchange Format | Small animations and simple graphics with limited colors. |
| BMP | Bitmap Image File | Uncompressed, large-sized files used in older Windows apps. |
Image acquisition refers to the process of converting physical visuals into digital data that a computer can process.
Graphics software allows users to create, edit, and manipulate visual data. These are broadly divided into two categories:
Works with pixels. If you zoom in too much, the image becomes "pixelated."
Works with mathematical paths and shapes. These can be scaled to any size without losing quality.
Definition: Multimedia is the integration of multiple forms of media, including text, graphics, audio, video, and animation, into a single interactive presentation.
Q: What is the main use of a Scanner?
A: To convert physical documents or photos into a digital format that can be stored on a computer.
Q: Why is JPEG the most used format for photos?
A: Because it significantly reduces file size while maintaining a visual quality acceptable to the human eye.