↑点击上方蓝色字体，关注“嵌入式软件实战派”获得更多精彩内容。 前段时间面试了一个小伙子，他有三四年嵌入式软件开发经验的了，随意问了一个问题： MCU软件的变量是存在哪的，RAM还是ROM？ 他犹豫了会，说是ROM。 接着我问他RAM和ROM有什么区别，他“呃 ...

Random Access Memory (RAM) stores programs and data that is used by the CPU in real-time. The data can be read, written, and erased any number of times. RAM is a volatile memory, a hardware element ...

CPU(Central Processing Unit)，是一台计算机的运算核心和控制核心。CPU由运算器、控制器和寄存器及实现它们之间联系的数据、控制及状态的总线构成。众所周知的三级流水线：取址、译码、执行的对象就是CPU，差不多所有的CPU的运作原理可分为四个阶段：提取(Fetch ...

一、ROM：只读存储器，内容写入后就不能更改了，制造成本比较低，常用于电脑中的开机启动如启动光盘bios，在系统装好的电脑上时，计算机将C盘目录下的操作系统文件读取至内存，然后通过cpu调用各种配件进行工作这时系统存放存储器为RAM。 PROM：可编程程序 ...

The term memory in a computer system refers to devices that store information in the form of chips. There are two main types of physical memory in a computer system, Random Access Memory (RAM) and ...

In the world of computers and electronics, there are a lot of terms that can be perplexing. One such term that often crops up is "ROM." But what is ROM, and how does it function within the framework ...