What does A, B, and C class IP addresses mean?

What does A, B, and C class IP addresses mean? 1. A Class a ip address www.2cto.com refers to A Class a ip address. In the four segments of the IP address, the first segment is the network number, and the remaining three segments are the numbers of the local computer. If A binary IP address is used to represent an IP address, A Class a ip address consists of A 1-byte network address and A 3-byte host address. The maximum IP address must be 0 ". In Class a ip addresses, the network ID length is 7 bits, the host ID is 24 bits, and the number of class A network addresses is small. It can be used in large networks with hundreds of thousands of hosts. 2. A Class B ip address is a Class B IP address. In the four-segment number of an IP address, the first two segments are network numbers, A Class B IP address consists of a 2-byte network address and a 2-byte host address. The maximum IP address must be "10 ". In type B ip addresses, the network ID length is 14 bits, and the host ID is 16 bits. Type B network addresses are suitable for medium-scale networks, each network can accommodate more than 60 thousand computers. 3. A Class c ip address www.2cto.com refers to a class c ip address. Among the four segments of the IP address, the first three segments are network numbers, and the remaining segments are the numbers of the local computer. If the IP address is expressed in binary format, the class c ip address consists of a 3-byte network address and a 1-byte host address. The maximum network address must be 110 ". In Class c ip addresses, the network ID length is 21 bits, the host ID is 8 bits, and the number of class C network addresses is large, which is suitable for small-scale local networks, each network can contain up to 254 computers.