This document presents an academic description of the OSI reference model. It was created by a group of 5 students for their Data Communication course taught by Ms. Itisha Nowrin. The presentation will cover the 7 layers of the OSI model, including the physical, data link, network, transport, session, presentation, and application layers. It will also discuss what the OSI model is, how data flows through the layers, and provide a summary of the functions of each layer.

1. OSI
Referance
Model
An Academic Presentation of Data Communication

2. Academic Description
Course Code: CSE233
Course Title: Data Communication
Course Teacher: Ms. Itisha Nowrin
(Lecturer)
Section: P
Depertment: CSE(Level-2,Term-3)
Group Members:
01. Md. Ashaf Uddaula (161-15-7473)
02. Alamin Hossain (161-15-7483)
03. Md. Khasrur Rahman (161-15-7214)
04. Md. Eram Talukder(161-15-7485)
05. Ijaz Ahmed Utsa (161-15-7180)

3. We are going to tell about…………………
What is OSI?
Layer of OSI Model
Layer Approch
OSI Model
Some Mnemonics for OSI Model
Physical layer
Data Link Layer
Network Layer
Transport Layer
Session Layer
Presentation Layer
Application Layer
Summary of Functions of Layers

4. What is OSI?
Open Systems Interconnect (OSI) Model
Who made: International Standards
Organization (ISO)
“Open” means the concepts are nonproprietary;
can be used by anyone
OSI is not a protocol. It is a model for
understanding and designing a network
architecture that is flexible and robust
The OSI model describes how data flows from
one computer, through a network to another
computer
7 layers

5. Layer of OSI Model

6. Layer Approch

7. OSI Model & Some Mnemonics

8. Physical layer

9. Physical layer

10. Data Link Layer

11. Data Link Layer

12. Network Layer

13. Network Layer

14. Transport Layer

15. Transport Layer

16. Session Layer

17. Session Layer

18. Presentation Layer

19. Presentation Layer

20. Application Layer

21. Application Layer

22. Summary of Functions of Layers