1. Assignment on
Course title:Data communication
Course code: 313
Submitted to Submitted by
Pranab Bandhu Nath Fatema Yesmin Aka
Lecturer of CSE ID: 1834902155
City university Sec: 49th (B)
2. Open Systems Interconnection model
(OSI model)
• The Open Systems Interconnection model (OSI model) is a
conceptual model that characterises and standardises the
communication functions of a telecommunication or
computing system without regard to its underlying internal
structure and technology. Its goal is the interoperability of
diverse communication systems with standard
communication protocols.
• The model partitions the flow of data in a communication
system into seven abstraction layers, from the physical
implementation of transmitting bits across a communications
medium to the highest-level representation of data of a
distributed application. Each intermediate layer serves a class
of functionality to the layer above it and is served by the layer
below it. Classes of functionality are realized in software by
standardized communication protocols.
4. TCP/IP Model
• TCP/IP stands for Transmission Control
Protocol/Internet Protocol. TCP/IP is a set of
standardized rules that allow computers to
communicate on a network such as the internet.
• The TCP/IP model is a part of the Internet
Protocol Suite. This model acts as a
communication protocol for computer networks
and connects hosts on the Internet. It is a concise
version of the OSI Model and comprises four
layers in its structure.
