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In computing, a protocol or communication protocol is a set of rules in which computers communicate with each other. The protocol says what part of the conversation comes at which time. It also says how to end the communication.
- Types of Protocol
- Hypertext Transfer Protocol (HTTP), is used for accessing and receiving Hypertext Markup Language (HTML) files on the internet.
- Simple Mail Transfer Protocol (SMTP), is used for transferring e-mail between computers.
- Post Office Protocol version 3 (PoP3) is the most common account type for personal e‑mail. Messages are typically deleted from the server when you check your e‑mail.
- Internet Message Access Protocol (IMAP) is a protocol for e-mail retrieval and storage developed in 1986 at Stanford University as an alternative to POP.
- File Transfer Protocol (FTP), is used for showing files to be copied between devices.
- Transmission Control Protocol (TCP), ensures the delivery of information packets across networks.
- Internet Protocol (IP), is responsible for logical addressing called "IP address" to route information between networks.
- In computer networking, Point-to-Point Protocol (PPP) is a data link (layer 2) protocol used to establish a direct connection between two nodes.