Digital camerasDigital cameras are similar to traditional cameras except that images are recorded digitally on a disk or in the camera's memory rather than on film and then downloaded, or transferred, to your computer. You can take a picture, view it immediately, and even place it on your own Web page, within minutes.To learn more about how digital photography works, visit us on the Web at www.computing-2012.com and enter the keyword photo. Digital photographs can be shared easily with others over the Internet.Digital Video CamerasUnlike traditional video camerasm digital video cameras record montion digitally on disk or in the camera's memory.Most have the capability to take still images as well. WebCams are specialized digital video cameras that capture images and send them to a computer for broadcast over the Internet. Some WebCams are built-in while others are designed to be attached to the computer monitor. To learn more about WebCams, visit our puter monitor. To learn more about WebCams, visit our Web site ar www.computing-2012.com and enter the keyword webcam.To learn how you can videoconference, see Making IT Work for You: WebCams and Instant Messaging on pages 198 and 199Audio - Input DevicesAudio-input devices convert sounds into a form that can be processed by the system unit. By far the most widely used audio-input device is the microphone. Audio input can take many forms,including the human voice and music.Voice Recognition Systems
Voice recognition systems use a microphone, a sound card, and special software. These systems allow users to operate computers and other devices as well as to create documents using voice commands. Examples include voice controlled dialing features on mobile phones, navigation on GPS devices, and control of car audio systems such as Microsoft Sync. Specialized protable voice recognition systems are widely used by doctors, lawyers, and others to record dictation. These devices are able to record for several hours before connecting to a computer system to edit, store, and print the dictated information. Some systems are even able to translate dictation from one language to anther, such as from English to Japanese.
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