What is Rome? ROM Kya Hai {What is ROM? in English}

By | March 6, 2022

ROM memory is a storage medium contained in electronic devices such as computers, smartphones or tablets. These memories contain firmware and other software that allow their correct operation. This means that it is necessary for the equipment to start its operation correctly. There are several types of ROM memory, depending on their age, whether their contents can be modified or reprogrammed.

What does ROM mean? What is ROM in Hindi

ROM stands for Read Only Memory, which is converted into Read Only Memory. As its name indicates, its function is to give only read access and not write data. Therefore its contents can be retrieved but cannot be modified or interfered with. This memory usually contains basic operational information recorded directly by the device manufacturer. Due to this, its content cannot be changed in a regular and simple manner. It is for these reasons that it is considered non-volatile memory, as its contents do not disappear or change when the device is turned off.

Also, it should not be confused with RAM or Random Access Memory, which works faster than ROM. However, there are currently other versions of this memory that allow it to be reprogrammed without introducing errors, although they operate in the same slow manner that is characteristic of ROMs. This memory is installed on the motherboard of the devices, so it allows the proper functioning of the basic information of the computer or BIOS. For this reason, if earlier you wanted to update the computer’s operating system, it was necessary to completely replace the chip.

These procedures were delicate and could only be performed by specialists who were part of the manufacturers of the product. However, due to its reprogrammable versions from 2007, it is difficult to find a device with ROM memory with indestructible data.

What is ROM for?

The main function of ROM memory is the proper functioning of any computer and electronic device. Thanks to this memory, computers can start basic operations so that the whole system can start up smoothly. Furthermore, ROM memory is responsible for storing the operating system program or the firmware of the device. It also includes the computer’s on and off programs, numerical usage tables, and programs that do not require frequent updates to function.

In addition, the information stored in this memory cannot be deleted even if the device does not have electrical power. It stands to reason that it is a non-volatile memory unlike RAM that can erase data if the information was not previously recorded on the computer. In turn, it is in charge of creating the input and output peripheral control routines so that everything is in order. Therefore, these memories are vital to the full operation of any existing computer or electronic device.

ROM memory type

With the advancement of technology, ROM memory has been adapted to meet the different needs of the users. At first they could not be programmed, but in the field of computing this type of memory has remained for most of the past. At present the existing types of ROM memory are reprogrammable and are as follows.

PROM {Prom}

These memories are called programmable read-only memory for its short form in English and are known as programmable read-only memory. These emerged in the mid-50s and stood out because it required a voltage overload of between 12 and 20 volts to record data on it. This process was carried out through a device called a ROM programmer and directly on the diodes found in its integrated circuit.

Memory chips were sold with their diodes and were only overloaded when reprogrammed. This required turning to a professional and so ordinary users could not manually reconfigure it whenever they wanted.


Known as programmable and erasable read-only memory, this is a significant improvement in the use of this memory. However, it worked in a similar way to EPRoM, with them users had the opportunity to delete the content stored by it. For this, the process involved the emission of ultraviolet light rays entering the integrated circuit through a window.

EEPROM {EEPROM}It stands for

Electrically Erasable Programmable Read Only Memory. These memories allow their contents to be removed like EPROMs, although the process is different. To achieve this, only an electric current is used and thus the memory will be erased and its contents ready to be rewritten. There is also a variant known as Flash EEPROM which has fewer components. This flash memory is capable of reading data records one by one and provides better chip performance

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