all about the analog system

today we will deal with the analog signals......
it is defined as the system which process the analog signals are called as the analog system....
the analog system analog measurement systems are being used for a long time ....
there are some advantages of these systems,but more than them there are disadvantages.....

disadvantages of the analog signals:-
1.analysis of analog systems needs time domain analysis which required sound mathematical background..
2.the performance of these systems degrades due to component ageing ..
3.storage and processing of data is not possible as they don't have memory...
4.analog system are affected more by the unwanted electrical disturbances called noise...
5.less reliability..

best examples of the analog system ae:-
1.filters
2.signal generator
3.motor speed controllers
4.power supplied
5.amplifiers..