The latest cameras can store your snaps on a small magnetic disc rather than the traditional film. Pictures can be displayed on a computer screen, enabling the results to be seen without the wait for developing. D2T2 is used to transfer the screen images into a colour print. Thermal print heads working at about 400C are used to transfer dyes from a CMY colour ribbon on to the print paper. A See Dac.
Digital computers process information in digital, or number, form.
This information can be stored in the same form in chips or on tape or disk. But suppose the stored information represents music that we want to hear. Music doesn't consist of the 'on-off' type of information that the computer uses, but is a continuously variable or 'analogue' quantity. It's the work of the Dac unit to convert information stored in digital form into an analogue output. Return DAT Digital Audio Tape.