A Digital camera, popularly called Digicam, is a camera that encodes digital images and videos digitally. Digital camera stores them for later production. Most camera sold today are digital and many devices, from PDAs to Mobile phones, today have digital cameras. Digital and film camera shares an optical system.
They typically use a lens with a variable diaphragm. Digital cameras can display images on a screen immediately after being recorded. We can also store and delete images from its memory. Many modern digital cameras can also record moving videos with sound and we can also edit those pictures with the help of elementary image editing.
Eugene F. Lally of the Jet Propulsion Laboratory was the forefather of digital camera. When he wasn't coming up with ways to create artificial gravity, he thought about how to use a mosaic Photo sensor to capture digital images. His 1961 idea was to take pictures of the planets and stars. Steve Sasson invented and built the first electronic camera. He was working as an engineer at Eastman Kodak at that time.
He built the camera using a charge-coupled device image sensor. The 8 pound first digital camera recorded 0.01 megapixel black and white photos to a cassette tape. The first photograph took 23 seconds to create. To play back images, data was read from the tape and then displayed on a television set. In the mid to late 1990s digital cameras became common among consumers. Almost all smartphones had an integrated digital camera by the beginning of the 2010s.
In a Kodak blog post written in 2007, Sasson explains how it was constructed: "It had a lens that we took from a used parts bin from the Super 8 movie camera production line downstairs from our little lab on the second floor in Bldg 4. On the side of our portable contraption, we shoehorned in a portable digital cassette instrumentation recorder. Add to that 16 nickel cadmium batteries, a highly temperamental new type of CCD imaging area array, an a/d converter implementation stolen from a digital voltmeter application, several dozen digital and analog circuits all wired together on approximately half a dozen circuit boards, and you have our interpretation of what a portable all electronic still camera might look like."