Digitizing+Devices

=Digitizing the Real World=

Scanners capture and digitize printed images

 * Flatbed
 * Slide
 * Drum
 * Sheet-fed

Digital camera

 * Snapshots captured as digital images
 * Digital images stored as bit patterns on disks or other digital storage media

Video digitizer
Capture input from a: Convert it to a digital signal
 * Video camera
 * Video cassette recorder or television
 * Stored in memory and displayed on computer screens

Videoconferencing
People in diverse locations can see and hear each other Video images transmitted through networks
 * Used to conduct long-distance meetings

Audio digitizers
Digitize sounds from Digital signals can be Speech recognition software
 * Microphones
 * Other input devices
 * Stored
 * Further processed with specialized software
 * A digital signal processing chip compresses the stream of bits before it is transmitted to the CPU
 * Converts voice data into words that can be edited and printed

Sensors
Designed to monitor physical conditions Provide data used in:
 * Temperature, humidity, pressure
 * Robotics
 * Environmental climate control
 * Weather forecasting
 * Medical monitoring
 * Biofeedback
 * Scientific research