Ram and rom memory: differences

One of the most common questions users ask themselves are the differences between RAM and ROM. Do you know the real differences between RAM and ROM? Both are two types of memory, but different. When we buy a smartphone or a computer, we always look at what RAM and what ROM it has, but do you really understand what these concepts mean? You know what you're buying? Today, with this guide, we want you to have no doubts about the real differences between RAM and ROM.

Index of contents

Differences between RAM and ROM

We will begin to explain what are the differences between RAM and ROM.

What is RAM?

RAM is Random Access Memory . In RAM all the instructions that the processor executes are loaded, in addition to other units. It is random access, because it can read or write to a memory location. A process that depending on the processor and RAM, we can do more or less quickly (such as opening applications).

What types of RAM are there? Usually we have SDR SDRAM, RSRAM, DDR SDRAM . The main difference is usually the speed in sending data, with consumption being another important factor. The best thing right now is to opt for a DDR3. It is important to note that with new 64-bit processors, RAM must have 64-bit data buses. It is important that you check this before exchanging it.

How much RAM do I need in my PC or smartphone? It depends on many factors, basically what you use it for. A computer with 4 GB of RAM nowadays is fine, but it is almost essential to have at least 8 GB of RAM. Me from you, right now in 2017, I would buy a PC with at least 8 GB of RAM. As for the smartphone, it also depends on the use, but at least 2 GB of RAM. You don't need 4 GB of RAM for a smartphone, but they are starting to come out of even 6 GB, OnePlus 3T has 6 GB of RAM, you can take a look.

• We recommend at least 8 GB of RAM for PC. We recommend at least 2 GB of RAM for mobile.

How is a memory physically? It is a chip with many integrated circuits and soldered in the same piece. In many occasions it is interchangeable, as in desktop PCs so you can change it for a better one. However, in many other devices such as smartphones, the RAM is released to the motherboard and cannot be changed.

What is ROM memory?

ROM is Read Only Memory , capable of permanently storing instructions and data. The main difference with RAM is that the RAM is read and write and the ROM is read only. Another difference is that in the case of ROM, the data that is stored does not disappear or is lost in the event that the power goes out or the battery runs out (for example), it is a type of non-volatile memory.

WE RECOMMEND YOU Scientists work with carbon nanotubes to unite CPU and RAM

Computer ROMs are used as a data storage medium . They allow saving data and information on the system, configuration, programs, etc. But over the years, they have been increasingly interrupted by the new flash memories, which are more widespread as in mobile phones and other devices, type PDA.

What types of ROM do we have? Mask ROM, PROM, EPROM and EEPROM . Flash memory uses EEPROM, and is very present today in USB, SD cards and of course, SSD.

Importantly, the internal storage of a smartphone is usually called ROM. How much internal storage do I need for a smartphone today? At least 16 GB (unless you use the mobile very little, which is 8 GB enough). In the case of computers, we recommend SSD. The more SSD memory the better, ideally at least 256 GB.

As you can see, these are the main differences between RAM and ROM. Has it become clearer to you? Are you still having doubts?

To expand your knowledge of RAM / ROM / SSD, we recommend the following articles:

We recommend reading:

• The best RAM memory on the market. What is Dual Channel and Quad Channel ? Best SSD of the moment. How to activate XMP profile of your RAM memory.