what are the advantages and disadvantages of embedded compare to vlsi,dsp?

what are the advantages and disadvantages of embedded
compare to vlsi,dsp?

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what are the advantages and disadvantages of embedded compare to vlsi,dsp?..

Answer / vidhya.k

Less power because each of the devices consumes only a tiny
amount of power. In a switching circuit most of the power
is consumed switching the charge on the capacitors that
connect the switches to each other. In a large IC the
components are so small and close together that that
capacitance is much smaller, and thus less power.

Less testing. If you built the same circuit out of discrete
ICs and other components, each IC has to be tested (before
you use it) for the many different ways it could be used in
different applications. for 10000 ICs this is a lot of
testing. In a VLSI the components are dedicated to a single
use. Further, most are located in the middle of the VLSI
and there is no access to them for testing. All you can
test is the function the entire circuit was designed for.

Reliability. Over time, we have found that the reliability
of an IC is a function of how many connections it has to
the outside world. So if the function is constructed with
many smaller ICs connected together, then there are many
connections, and the reliability is lower. The vlsi has
fewer connections, and higher reliability.