Signals can travel through a form called analog carrier signals and in the computer it is in the form of digital signal/information. Now modem is the device that changes analog signals into digital information and digital information into analog signals which is called as modulate and demodulate. Hope you find this usefull :)

The three main parts are nucleas - the genetic information for the offspring is present in the dna and this is present in the nucleus. It acts as the brain of the cell. It also contains its own mitochondria cell organelles - there are many cell organelles. Each onnes function is explained in … Read more