Meaning of ROM Memory
What is ROM memory:
ROM memory is the storage medium for programs or data that allow the proper functioning of computers or electronic devices through the reading of information without it being destroyed or reprogrammable. The meaning of ROM memory is "Read Only Memory" translated into Spanish "Read only memory."
ROM memory is known as non-volatile memory since the information contained in it is not erasable when the electronic device is turned off.
The ROM memory is installed on the motherboard, where the basic information of the computer is located, called "BIOS."
The oldest ROM memory is the MROM, it stores indestructible data and for updating the software or data it is necessary to replace the chip, which cannot be done by anyone but by an expert or the same manufacturer, with technological advances few programs are stored in ROM as most of them are in newer ROMs; Erasable Programmable Read-Only Memory (EPROM) is a reprogrammable memory and erasable through strong ultraviolet rays, and the Electrically Erasable Programmable Read-Only Memory (FLASH EEPROM) can be reprogrammable, erasable and allows to alter the content through signals electrical
Since 2007 it is very difficult to find devices with ROM memory since reprogrammable equipment is more flexible and economical.
What is ROM for
The ROM memory is of utmost importance for the proper functioning of computers and electronic devices since when the ROM memory is turned on it allows the initial program to be started, which will start the entire system.
The ROM memory serves to store firmware programs, that is, to store operating system programs, language interpreters, control programs (turn on the equipment); program information tables (numerical usage tables); and other programs that do not need to be constantly modified or updated.
ROM memory and RAM memory
The information contained in the ROM memory is not erasable when the computer is turned off or with the power failure, that is why it is called non-volatile memory, while the information contained in the RAM or volatile memory is erasable and can get lost in case the user does not save the information on the computer, for example: when we write in Word, the information must be saved.
The RAM memory is faster to read than the ROM memory, which is why normally the information contained in the ROM memory is transferred to the RAM memory.
The RAM memory is random access since the information remains recorded in the electronic device and its quick access is possible.