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Explain difference between primary and secondary computer memory

Motherboard Processor & RAM


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  #1  
Old 29-12-2010
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Explain difference between primary and secondary computer memory
  

I do not know which is the main memory. And that I have studied computer. When talking about memory in general is joining

RAM + ROM

ROM = Read Only Memory = Read-Only Memory

Randon Access Memory = RAM = Random Access Memory.

The ROM contains all the system resources required to operate and read at the beginning and every time you need the system. The RAM is used by normal applications, all programs that start and stop, etc.. You always talk about when we say that the PC has 256 Mb, 512 Mb, 1 Gb or more.

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Old 29-12-2010
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Re: Explain difference between primary and secondary computer memory

The secondary memory is designed to overcome some limitations of main memory. It is non-volatile, meaning retains its contents even when power to the computer system is off. This allows you to keep your data on long-term basis, while main memory cannot. Given its relatively high capacity compared to main memory at the same price, is much more feasible for use as a mass storage device. Denotes removability for some secondary forms is an additional benefit, allowing data to be shared between several computers on the disks. However, it is not as fast as the more fundamental memory, so it is based on a slower pace of the interface (ie, in general, IDE or SCSI) and slower storage (physical storage on magnetic media, electronic storage instead).
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Old 29-12-2010
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Re: Explain difference between primary and secondary computer memory

The primary memory, especially RAM, is very fast on modern computers, and since almost directly interfaces with the CPU, which allows very fast transfer between them. Usually it is in the form of memory chips, which store their data electronically and transfer to and from the CPU through a memory bus faster than the computer has been dedicated to this purpose. However, RAM is usually volatile, s that it loses its content when the computer system power is off.
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Old 29-12-2010
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Re: Explain difference between primary and secondary computer memory

Do not confuse "units or storage devices" to "storage media or devices," because the former are the devices that read or write data stored in the media. The secondary memory is a type of mass storage and permanent (nonvolatile), unlike the RAM that is volatile, but has more memory capacity than main memory, although it is slower. The process of transferring data to a computer equipment is called "reading procedure." The process of transferring data from your computer to the storage is called "procedure of writing."
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