* OSI 7 Layer 컴퓨터 소프트웨어와 하드웨어를 통신 관점에서 이해하는 모델 The Open Systems Interconnection model (OSI model) is a conceptual model that characterizes and standardizes 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 protocols. The model pa..

컴퓨터란? A computer is a device that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming. Modern computers have the ability to follow generalized sets of operations, called programs. These programs enable computers to perform an extremely wide range of tasks. 다양한 종류의 컴퓨터들이 있다. (데스크탑, 서버 컴퓨터, 태블릿, 스마트폰, 웨어러블 장치, IoT, 로봇, 드론 등등) 네트워크 규모에..