What is ROM and what is it for, how does it work and what types are there?

So I invite you to continue reading this wonderful section, so that you can learn what ROM memory is for, its function and much more.

What is needed?

When we talk about ROM memory in computer science, yes refers to a type of memory for mobile phones, computers and other electronic devices, responsible for reading access. Hence the premise Read-only ROM memory: what is it and what is it for? How does it work and what types are there?




This means that it can host information, the user can retrieve it, but cannot intervene or modify its content.

This device is vital, ROM memory comes used to boot the operating system in electronic devices.

When you press the start button of your electronic device, the ROM allows you to successfully start the initial program and then to boot the system.

The data is stored in ROM memory. Since the system ROM does not allow modification of data, it is used to save some data.

 

What is ROM and what is it for, how does it work and what types are there?

Typically, manufacturers save logical and mathematical operations, technical product information, lookup tables, among others.

It is also used for archive the product software. In the 80s, companies that made computers stored software in ROM so that people couldn't access it.

In such a way that they cannot make any changes or alterations that could interrupt the use of any functionality, or completely damage the device.

Currently, ROM memory is used to save boot operating systems or other basic functions, for example Setup, BIOS, Post, among the others.

roms-and-their-function">Types of ROMs and their function

In turn, it should be clear what the difference between RAM and ROM is and what types exist between the two, in order to avoid confusion regarding this tutorial.




Like most electronic devices, over time they evolve and improve their characteristics physical and technical.

The same happened in the case of the ROM too. Over the years, yes they have evolved by improving their function.

rom

It is one of first memories ever made. It is known as non-volatile memory, since when the device is turned off it does not lose the information it contains.

Therefore, this type of memory has the ability to function (store information) without the need to receive an electric current.

L'OTP o PROM

It is a programmable digital memory which needs a device called PROM to be able to receive the writing.


 

What is ROM and what is it for, how does it work and what types are there?


This PROM memory can only be programmed once, because each memory unit requires a small fuse that blows when written.

L’EPROM

EPROM memory it is read-only erasable and can be programmed. It is basically a PROM memory with the ability to erase information via ultraviolet light.

You can also delete information when you are exposed to very high voltage levels, so that we can delete your information and perform a replacement.


EEPROM

The EEPROM is a read-only memory that can be electrically erased and reprogrammed. It is a modification of the EPROM memory that it does not require ultraviolet light to delete the contents inside.

It can be reprogrammed via the own circuit, in such a way as to have access to the bits that have the information individually.

add a comment of What is ROM and what is it for, how does it work and what types are there?
Comment sent successfully! We will review it in the next few hours.