A platform to get all the notes for VTU Students (CBCS Scheme) CCN. Notes Credits to Prof Jenita Subash (CITech, Blr). Last updated: 11/06/ NETWORKS NOTES. Prepared by: .. VT’s are a partial payload consisting of an m-by-n block of octets. An STS payload can be a combination of several VT’s. Computer Communication Network, CCN Study Materials For exam preparations, pdf free download Classroom ViewsNote3 Pages7 TopicsVTU.

Author: Meztikora Tusida
Country: Montenegro
Language: English (Spanish)
Genre: History
Published (Last): 22 September 2008
Pages: 444
PDF File Size: 15.17 Mb
ePub File Size: 4.58 Mb
ISBN: 175-9-23795-322-6
Downloads: 83888
Price: Free* [*Free Regsitration Required]
Uploader: Mazumi

Data delivered late are useless. The receiver is the device that receives the message. Data Communication and Networking, Behrouz A.

Data must be received by the intended device or user and only by that device or user. For data communications to occur, the communicating devices must be part of a communication system made up of a combination of hardware physical ontes and software programs.

The effectiveness of a data communications system depends on four fundamental characteristics: It can be a computer, workstation, telephone handset, video camera, and so on. Data Communications and NetworkingForouzan. Jitter refers to the variation in the packet arrival time.

Touch here to read. Add to Favourite Add to Favourite Add to classroom.

It represents an agreement between the communicating devices. The transmission medium is the physical path by which a message travels from sender to receiver.


Some examples of transmission media include twisted-pair wire, coaxial cable, fiber-optic cable, and radio waves. For example, let us assume that video packets are sent every 30 ms.

The message is the information data to be communicated.


Data communication and networking have found their way not only through business and personal communication; they have found many applications in political and social issues. It can be a computer, workstation, telephone handset, television, and so on.

Popular forms of information include text, numbers, pictures, audio, and video. Business decisions have to be made ever more quickly, and the decision makers require immediate access to accurate information.

It is the uneven delay in the delivery of audio or video packets.

Why wait a week for that report from Europe to arrive by mail when it could appear almost instantaneously through computer networks?

The sender is the device that sends the data message. The system must deliver data in a timely manner. Computer Communication Network by Jayaprasad Km. Share it with your friends. But before we ask how quickly we can get hooked up, we need to know how networks operate, what types of technologies are available, and which design best fills which set of needs 1.


Data communications are the exchange of data between two devices via some form of transmission medium such as a wire cable. Electronics and Communication Engineering Offline Downloads: A protocol is a set of rules that govern data communications. Nodes and Links 3.

People have found how to communicate with other people in the world to express their social and political opinions and problems.

Data that have been altered in transmission and left uncorrected are unusable. The system must deliver the data accurately. The system must deliver ccj to the correct destination.

Computer Communication Network

This kind of delivery is called real-time transmission. If some of the packets arrive with ms delay and others with 40 ms delay, an uneven quality in the video is the result.

Businesses today rely on computer networks and internet- works. In the case of video and audio, timely delivery means delivering data as they are produced, in the same order that they are produced, and without significant delay. Communities in the world are not isolated anymore.