Job Roles

            => log60(3*4*5)

                              =>     log6060

                                   = 1

if logab+logba=loga+b,then

loga+b=logab×ba=log 1

so, a+b=1

log 27 = 1.431
log33 = 1.431
3 log 3 = 1.431
log 3 = 0.477
log 9 = log(32)= 2 log 3 = (2 x 0.477) = 0.954

log (2 + 3) = log 5

log (2 x 3) = log 2 + log 3

 log (2 + 3) ≠log (2 x 3)

Transmission is a physical movement of information and concern issues like bit polarity, synchronization, clock etc.

Communication means the meaning full exchange of information between two communication media

In a baseband transmission, the entire bandwidth of the cable is consumed by a single signal. In broadband

transmission, signals are sent on multiple frequencies, allowing multiple signals to be sent simultaneously.

BUS topology:

In this each computer is directly connected to primary network cable in a single line.

STAR topology:

In this all computers are connected using a central hub.

When the computers on the network simply listen and receive the signal, they are referred to as passive because they don’t amplify the signal in any way.

Example forpassive topology - linear bus.