Computer Networks for GATE
What is a COMPUTER NETWORK ? Computer Network is an interconnection of multiple devices, also known as hosts, that are connected using multiple paths for the purpose of sending/receiving data or media. Computer networks can also include multiple devices/mediums which help in the communication between two different devices. It is a process of exchange of data between two devices. A Effective Data Communication depends upon following factors: 1.Delivery : It states that the data sent is to be reached correctly. 2.Timeliness : It states that the data should reach in a timely manner. 3.Accuracy : It states that the data should reach the destination accurately. 4.Jitter : It represents the variations in packet arrival time ,also known as variation of delay.