DOS VS WINDOWS

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What is Protocol? What is TCP/IP, FTP, HTTP, GOPHER, TELNET, SMTP, ETHERNET?

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What is OSI Model in networking?

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1.  OSI Model  stands for Open System interconnection model. 2.  OSI Model  defines how data is transferred from one computer to another computer. 3. In a very basic scenario two computers connected with a LAN and connectors transfer data using the NIC. This forms a computer network, however if both the system uses different operating systems, for example one system runs on windows and other one runs on MacOS then how can data be transferred between these two different systems, here comes the role of a OSI model which is a seven layered model that defines how a data can be transferred between different systems. 4.  OSI model  was introduced by International Organisation for standardisation (ISO) in 1984. 5. There are  seven layers  in a OSI model Application layer Presentation Layer Session layer Transport layer Network Layer DataLink layer Physical layer Physical Layer We now learned that a transport layer converts the data into segments, network layer converts the segments into packe
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