↑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 ...

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 ...

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 ...

随着电子技术的发展，我们会经常听到ROM、RAM这种词汇。RAM指的是随机存取存储器，是Random Access Memory首字母缩写。特点是能够与CPU直接进行数据交互，存储着局部变量数据。ROM指的是只读存储器，是Read-Only Memory的首字母缩写。数据写入后只能读取，掉电不丢失。

The computers and other tech devices your company uses rely on a handful of basic technologies. One of them is the memory, which is where your software does what it does. There's a whole alphabet soup ...

“麻雀虽小五脏俱全”，这句话用来形容手机颇为合适。 别看只是一部小小的手机，能实现的功能却多得是。手机和电脑一样能实现强大的功能，里面包含了CPU、RAM、ROM、GPU、屏幕、摄像头、电池、传感器、射频芯片等零部件。本文中将为大家介绍手机内部比较 ...

在嵌入式开发中，我们经常会接触到一些专业术语，例如CPU、MCU、MPU、SOC和MCM等，这些缩写代表了不同类型的电子处理单元，它们在消费电子、计算机硬件、自动化和工业系统中扮演着重要角色。 CPU（Central Processing Unit，中央处理单元）：由运算器、控制器和 ...

In the early days of computing, the difference between RAM and ROM was very clear. Random access memory (RAM) was designed to hold data while the computer was turned on and to lose it when the power ...

Like peanut butter and jelly, like salt and pepper, like that seemingly perfect couple you love (to hate), the two dominant types of computer memory truly complete one another. Read-only memory (ROM) ...

Let us discuss this topic in more detail. 1] Hard Disk Drive (HDD) or Solid-State Drive (SSD) When it comes down to common computer memory, the hard disk drive is likely at the top of the list. If you ...