Answer Posted / priyadarsan.u.s

Have u seen your mother using filter in kitchen to remove
tea dust from tea? ...yeah the same is the task with
electronic filter(not to remove tea dust..ha..ha.).To remove
unwanted part from a mixture.Usually the raw signals we get
to process contain many unwanted frequencies (lets call it
as 'noise' for the time being)which need to be removed. For
this purpose we need a filter.Basically there are filters of
the following kind. a)lowpass(filters out higher freq signals)
b)highpass(filters out lower freq sigs)
c)bandpass(which filters out a mid band of freq
rejects both higher & lower freqs)
d)bandreject(name speaks for it)
Filters can also be classified as
a)Digital
b)Analog
on the basis of how they are implemented.

my first question in huawei was ....1)Tell me about your self 2) oops concept 3)logic gates 4)ram and rom ,what is cache memory nd where it is located 5)diffrence between file system and data base 6) procedure of operating system 7)what is c# 8)high level language and machine language 9) and from mobile networkin !!!! hope thz will help you

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