Good ppt

1. Programme B.Sc
Subject Transmission, Transmission mode
Semester 5
University Gulbarga University, Kalaburagi
Session 04
Created by Ishrat Begum
DSE-3(C):Data Communication and Networks

2. Transmission, Transmission mode

3. Learning Objective
 To learn the Transmission, Transmission mode
3

4. Recap
• Topology
• Types of Topology

5. Session Outcomes
1. To understand the Transmission, Transmission mode
5

6. Prerequisites
 Transmission, Transmission mode
6

7. Terms used
Transmission, Simplex, Half duplex,
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8. Data Transmission
 Most digital messages are longer than just a few bits.
 It is neither practical nor economic to transfer all bits of a long message
simultaneously.
 The message is broken into smaller parts and transmitted sequentially.
 Bit-serial transmission conveys a message one bit at a time through a channel.
 Each bit represents a part of the message.

9. Transmission Modes
Transmission mode refers to the mechanism of transferring of data between two
devices connected over a network. It is also called Communication Mode. These
modes direct the direction of flow of information

10. Transmission Modes (cont’d.)
There are three types of transmission modes. They are:
Simplex Mode
Half duplex Mode
Full duplex Mode
https://www.studytonight.com/computer-networks/images/Figure11-a.png

11. Transmission Modes (cont’d.)
SIMPLEX Mode: In this type of transmission mode, data can be sent only in one
direction i.e. communication is unidirectional.
https://www.studytonight.com/computer-networks/images/Figure11.png

12. Transmission Modes (cont’d.)
HALF DUPLEX Mode: Half-duplex data transmission means that data can be
transmitted in both directions on a signal carrier, but not at the same time.
https://www.studytonight.com/computer-networks/images/Figure12.png

13. Transmission Modes (cont’d.)
FULL DUPLEX Mode: In full duplex system we can send data in both the directions
as it is bidirectional at the same time in other words, data can be sent in both
directions simultaneously
https://www.studytonight.com/computer-networks/images/Figure14.png

14. References
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1.Behrouz A.Forouzan, Data Communication and Networking,2nd Ed.,Tata
McGrawHill.
2.William Stallings, Data and Computer Communications,7th Ed.,Pearson education
Asia,200