📜  易失性内存和非易失性内存的区别

📅  最后修改于: 2021-09-13 02:04:12             🧑  作者: Mango

易失性内存:
它是高速获取/存储数据的内存硬件。它也称为临时内存。易失性存储器中的数据会一直存储到系统能够存储为止,但是一旦系统关闭,易失性存储器中的数据就会自动删除。 RAM(随机存取存储器)和高速缓存存储器是易失性存储器的一些常见示例。在这里,数据获取/存储既快速又经济。

非易失性存储器:
它是一种即使断电也不会丢失数据或信息的存储器。 ROM(只读存储器)是非易失性存储器最常见的例子。与易失性存储器相比,它在获取/存储方面不经济且缓慢,但存储的数据量更大。所有需要长时间存储的信息都存储在非易失性存储器中。非易失性存储器对系统的存储容量有巨大影响。

以下是易失性和非易失性存储器之间的区别:

S.NO Volatile Memory Non-Volatile Memory
1. Volatile memory is the type of memory in which data is lost as it is powered-off. Non-volatile memory is the type of memory in which data remains stored even if it is powered-off.
2. Contents of Volatile memory is stored temporarily. Contents of Non-volatile memory is stored permanently.
3. It is faster than non-volatile memory. It is slower than volatile memory.
4. RAM(Random Access Memory) is an example of volatile memory. ROM(Read Only Memory) is an example of non-volatile memory.
5. In volatile memory, data can be easily transferred in comparison to non-volatile memory. In non-volatile memory, data can not be easily transferred in comparison to volatile memory.
6. In Volatile memory, process can read and write. In Non-volatile memory, process can only read.
7. Volatile memory generally has less storage capacity. Non-volatile memory generally has more storage capacity than volatile memory.
8. In volatile memory, the program’s data are stored which are currently in process by the CPU. In non-volatile memory, any kind of data which has to be saved permanently are stored.
9. Volatile memory is more costly per unit size. Non-volatile memory is less costly per unit size.
10. Volatile memory has a huge impact on the system’s performance. Non-volatile memory has a huge impact on a system’s storage capacity.
11. In volatile memory, processor has direct access to data. In non-volatile memory, processor has no direct access to data.
12. Volatile memory chips are generally kept on the memory slot. Non-volatile memory chips are embedded on the motherboard.