An IP address is -- in IP version 4 -- a 32-bit number, typically represented in dotted-decimal notation (such as 10.0.0.1).
IP 地址（IP 版本 4）是一个 32 位数，通常以点分十进制符号（如 10.0.0.1）表示。
2
An IP address is composed of four octets (Numbers in the range of 0 to 255) separated by decimal points.
IP地址由四个字节(每个字节的取值范围为0到255)组成，字节之间用小数点隔开。
3
It consists of an 8-bit 6502 CPU (without support for decimal mode, also known as BCD), DMA transfer unit, pseudo audio processing unit, 1/12 clock divider, and a bit of logic for address decoding.