Gadgets Manual

As computer and web become popular in human’s life, digital images play an important role to express ideas. With the rapid development of technology, digital images can be easily uploaded to computers from the places manipulating by using a variety of software, email to friends or post on a website. Digital images can be saved without worrying about losing good quality of photograph paper or digital video clips can be used over and over again. Sometimes digital files can be used in different format such as mp3 or jpag. There is also no need to worry about running out photo negatives or buying a roll of film when you want to take pictures. Before doing digital photographs, one of the most important things is to have good equipment. The purpose of this paper is to provide users a guide and basic concepts on hardware of digital cameras and camcorders.

How do digital cameras work? Simply speaking, a digital camera uses semiconductor chips, usually a single Charged Coupled Device (CCD) instead of conventional film. When the shutter opens and light strikes the CCD, temporary electronic changes to the CCD are converted into computer language and recorded on either internal or removable memory. Those images can be viewed on a small screen on the rear of the camera and then later, they can be downloaded to a computer where they can be edited, printed, sent to friends as email, or posted in albums to be shared with others on the Internet. A digital camera may look like a conventional camera, but the process is radically different, and so is the operation. Most digital cameras have more in common with automatic point-and-shoot cameras.

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