A protocol It is a set of rules and rules that apply to guide an action or process. If we focus on the field of computing , the notion is linked to the guidelines used to establish a communication process between various teams or systems.
HTTP , meanwhile, is an acronym from the English expression Hypertext Transfer Protocol: that is to say, Hypertext Transfer Protocol . Its about communication protocol which is used to transfer information through the world Wide Web .
Before explaining in detail what the HTTP protocol , it is important to remember the structure proposed by the open systems interconnection model, known as OSI model . This model recognizes eight layers in the networks : the lowest is the physical layer , while the highest is the application layer .
He HTTP protocol acts precisely in the application level . Its function is the definition of semantics and syntax that computer programs use to communicate in the Web (The computer network formed by the interconnection of hypertext documents, which can be accessed via the Internet).
It can be said that the HTTP protocol indicates how the browsers (software ) with the servers (computers or computers ) that host the information. What the user does is enter the website address in the browser and, after completing several steps, request resources from the server to finally display the data (texts, videos, images, etc.) on the screen.