Photos

Photos, also known as photographs or images, are visual representations created by capturing light on a photosensitive surface. Traditionally, this surface was photographic film, but today it is usually an electronic image sensor such as a CCD or CMOS chip found in cameras and smartphones.

The word photograph comes from the Greek words phos (light) and graphê (drawing or writing), meaning "drawing with light." The process of creating photographs is called photography.

Most photos are made by cameras that use lenses to focus visible light from a scene onto the sensor, producing an image that closely resembles what the human eye sees. With the rise of digital technology, photos are now often stored in digital formats like JPEG, TIFF, or RAW and can be printed or shared electronically.

In modern usage, "photos" also refer to digital collections of these images, which can be organized, edited, and shared using apps and platforms such as Google Photos and Apple Photos. These apps provide features like automatic organization, editing tools, cloud backup, and easy sharing options.

In summary:

• A photo is an image created by capturing light on a photosensitive surface or sensor.
• The term means "drawing with light."
• Photos are typically made using cameras or smartphones.
• Digital photos can be stored, edited, and shared using various software and apps.

This definition covers both the traditional and modern digital understanding of photos.