OSI参考模型_百度百科 OSI（Open System Interconnect），即开放式系统互连。 一般都叫OSI参考模型，是ISO组织在1985年研究的网络互连模型。 该体系结构标准定义了网络互连的七层框架（物理层、数据链路层、网络层、传输层、会话层、表示层和应用层），即OSI开放系统互连参考模型。
OSI model - Wikipedia OSI had two major components: an abstract model of networking, called the Basic Reference Model or seven-layer model, and a set of specific protocols The OSI reference model was a major advance in the standardisation of network concepts
白话 OSI 七层网络模型 - freeCodeCamp. org 本文讲的是开放网络互联（OSI，Open Systems Interconnection）模型以及网络体系结构中的七个层次。 OSI 模型是一个描述网络功能的概念框架。 简单来说，OSI 模型标对计算机系统彼此之间发送信息的方式进行了标准化。
What is OSI Model | 7 Layers Explained | Imperva What Is the OSI Model? The Open Systems Interconnection (OSI) model describes seven layers that computer systems use to communicate over a network The OSI model is divided into seven distinct layers, each with specific responsibilities, ranging from physical hardware connections to high-level application interactions