A camera is an optical instrument that can record and capture images locally or transmit them elsewhere. Early cameras worked by punching a hole in a dark box and placing light-sensitive material on the other side to produce an image, though upside down. Over time, cameras improved, becoming larger like an 8 foot by 4.5 foot 900 pound camera requiring 15 men to operate, or more compact like the Commodore for ease of use. Cameras evolved from film to digital storage, and are now found in devices like DSLRs, pocket-sized digital cameras, and smartphones, allowing people to cherish memories through photographs of loved ones and past events.