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TCP and IP TCP與IP
Computer networks — including the Internet, which is the largest computer network — use Transmission Control Protocol/Internet Protocol or TCP/IP for network communications both internally on a LAN/WAN and externally to the Internet.
計算機網絡（包括最大的計算機網絡Internet）使用傳輸控制協議/ Internet協議或TCP / IP進行內部LAN / WAN上和外部Internet的網絡通信。
TCP/IP provides end-to-end connectivity of data. TCP/IP specifies how data should be grouped, addressed, transmitted, routed, and received at the destination address. The TCP/IP model, along with many of its protocols, is maintained and managed by the IETF (Internet Engineering Task Force).
TCP / IP提供數據的端到端連接。 TCP / IP指定如何在目標地址處對數據進行分組，尋址，傳輸，路由和接收。 TCP / IP模型及其許多協議由IETF（Internet工程任務組）維護和管理。
TCP/IP is one of two sets of protocols that collectively operate in the transport and network layers of the OSI model.
TCP / IP是在OSI模型的傳輸層和網絡層中共同運行的兩組協議之一。
OSI Model. Image used under CC-BY-SA license from Wikimedia Commons.
In addition to creating message segments and ensuring connectivity, some of the basic characteristics of the IP protocol ensure that datagrams are routed to the correct destination using a binary addressing scheme. While the process of how the IP addresses are derived from binary (and hexadecimal relationships) is not covered in this course, it is important to know that just as computer CPUs use binary numbers to process data, networking hardware and protocols do so as well.
除了創建消息段並確保連接性之外，IP協議的某些基本特徵還可以確保使用二進制尋址方案將數據報路由到正確的目的地。儘管本課程未涵蓋如何從二進制（和十六進制關係）派生IP地址的過程，但重要的是要知道，就像計算機CPU使用二進制數來處理數據一樣，網絡硬件和協議也是如此。
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