what is a computer network?
a computer network is a network formed by connecting two or more computers and the main purpose of this is to use.
Computer Resources in common for example
a computer network can be created for common use on the opposite side of the internet the main component of a data communication system are Source receiver signal medium message
Channel source
this is the device that initiates the
data communication a data message is created and sent in it receiver
this is the device that captures the satellite data message the media
this establishes the connection between the source and the receiver
signal an electronic change in the path of a signal becomes the data message in a signal in the course of a signal an electronic current travels from the source to the receiver there are two types of signals analog signal digital signal signals whose frequency and amplitude are constantly changing are called analog signals signals that only oscillate between two frequency ranges that do not change constantly are called digital signals protocol
in a data Communication System the set of rules that must be followed by data messages is set by the protocol it regulates the sequence of actions that must be followed when a data message travels from the source to a receiver message this is the main purpose of communication the data or information