The modern radio/TV/DVD for instance may auto-tune, store user
settings for volume, picture clarity, program index and teletext functions.
Receiving control signals from the user's 'Remote' the microcontroller will
process the data and cause the function to be carried out.
The functions available are seldom provided by a single I.C. and
more increasingly the implementation has been achieved using digital
techniques, somewhere in the system lurks a microcontroller,
user interface (keys/display), eeprom, pll, tuner and decoder each
passing data from one to the other. It's now 2006 and greater intergration
is being utilised as the fabrication processes achieve even more circuitry
in one die. A T.V. on a chip may already be with us.
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