mmc

转自：https://www.cnblogs.com/debruyne/p/9186619.html DDR3内存条和eMMC存储器区别： 1. 存储性质不同； 2. 存储容量不同； 3. 运行速度不同； 4. 用途不同。 具体区别如下： 1、存储性质不同：eMMC是非易失性存储器，不论在通电或断电状态下，数据都是可以存储的，而DDR3内存是易失性存储器，断电同时，数据即丢失。 2、存储容量不同：eMMC的存储容量要比DDR3内存大3-4倍，常见有32G，而DDR3内存容量相对较小，常见有2-8G。 3、运行速度不同：DDR3内存运行速度要比eMMC快得多。 4、用途不同：eMMC主要用于数据存储，而DDR3内存主要用于数据运算。eMMC 主要是针对手机或平板电脑等产品的内嵌式存储器标准规格。用来提供标准接口并管理闪存。在手机或平板电脑中，DDR3内存可称之为运行内存，而eMMC可称之为存储内存。 ADD eMMC: eMMC（Embedded Multi Media Card）也是一种使用兼容MMC协议的芯片，和MMC的区别如其名，eMMC经常被用于嵌入式环境中，而MMC一般用作外接设备的标准。eMMC = NAND flash + 控制器 + 标准封装接口。 很多卡内部的存储设备用的都是NAND flash， 单纯nand flash和这些卡的区别，就是nand

I need to execute a method in an assembly loaded during runtime. Now I want to unload those loaded assemblies after the method call. I know that I need a new AppDomain so I can unload the libraries. But here, the problem arises. The assemblies going to load are plugins in my plugin framework. They have no entry point at all. All I know is that they contain some types which implement a given interface. The old, non-AppDomain-code looks like this (slightly shortened): try { string path = Path.GetFullPath("C:\library.dll"); AppDomain.CurrentDomain.AssemblyResolve += CurrentDomain_AssemblyResolve;

I'm trying to read the private key of a certificate which has been shared with me by a third-party service provider, so I can use it to encrypt some XML before sending it to them over the wire. I'm doing so programmatically in C#, but I think this is a permissions or misconfiguration issue, so I'll focus on the facts which seem to be most relevant: I don't think this issue is code-related; my code works on other computers, and the issue affects sample code from Microsoft. The certificate was provided as a PFX file and is just for test purposes, so it also includes a dummy certification