네트워크 이해 자료

1. https://yozm.wishket.com/magazine/detail/1875/
2. https://yozm.wishket.com/magazine/detail/1906/
3. https://yozm.wishket.com/magazine/detail/1956/
4. https://yozm.wishket.com/magazine/detail/2005/

굉장히 이해가 잘되도록 현실세계를 예로 들어 설명한 네트워크라 따로 남긴다