We all may meet the situation that when we open more programs or playing games ,the computer suddenly became blue screen and displayed "beginning dump of physical memory".It will affect our mood.How to fix this Physical Memory Dump problem ?
First we should know what to cause this problems.There are several reasons to cause this physical memory dump error in Windows 7 and Windows XP.Then you can try to solve the problem using corresponding method. Read more
What is a ROM Memory ?
ROM is the read-only memory.It is different from RAM.It is the solid-state semiconductor memory only read the beforehand stored data . Its characteristics is that as soon as the data storaged it can not be changed or deleted. ROM of the stored data is stable, the stored data will not change in the power off.Its structure is relatively simple, the read-out is more convenient, and thus commonly used for storing various fixed program and data,such as the computer BIOS chip.Becasue ROM can not rewrite the information and can not be upgraded, it is now rarely used.
For ease of use and high-volume production, the further developments of ROM are Programmable ROM (PROM),Erasable Programmable Read Only Memory (EPROM),Electrically Erasable Programmable Read Only Memory (EEPROM),Flash ROM.etc..
Flash ROM is the useful .Flash ROM write fast,can write with low voltage. It has large capacity and low cost.It is used in Compact Flash/CF，Smart Media/SM，Security Digital/SD，Multimedia Card/MMC，Memory Stick/MS, and also used in PDA ,Pocket computer ,andriod smartphone.
What Is a Computer RAM Memory ?
RAM is the Random access memory. The contents of the storage unit can demand to be removed or deposit easily. The access speed has no relationship with the location of the storage unit. Such a memory will loss the stored contents when the power off, so it is mainly used for storing short time use program.
The speed of the modern random access memory is almost fastest in all access equipment write and read speeds.And fetch delay is very small compared to storage devices and other mechanical operation. Read more