CPU是计算机的核心部件，它由控制单元和算术逻辑单元两部分组成。控制单元主要负责指令的解码和执行，而算术逻辑单元则负责实现算术运算和逻辑运算。此外，CPU还包含寄存器、缓存等辅助部件，用于提高计算机的性能和效率。

The CPU is the core component of a computer, consisting of two parts: the control unit and the arithmetic logic unit. The control unit is mainly responsible for decoding and executing instructions, while the arithmetic logic unit is responsible for implementing arithmetic and logical operations. In addition, the CPU also includes auxiliary components such as registers and caches, which are used to improve the performance and efficiency of the computer.