Full Form of ROM – Read Only Memory

What is the Full Form of ROM

What is the Full Form of ROM

Full Form of ROM

The full Form of ROM is “Read Only Memory”. Read-Only Memory (ROM) is a different kind of storage medium used in systems and other electronic devices that can be read-only. When it comes to ROM, data can only be entered once and cannot be modified later.

What is ROM?

Read-only memory is a type of non-volatile memory used in computers and other electronic devices. Data stored in ROM cannot be electronically modified after the manufacture of the memory device.
When it comes to ROM, data can only be saved once and cannot be modified later. Also, ROM is a non-volatile type of memory, therefore we can easily retrieve data from it even after the power is not available. ROM (Read-Only Memory) is useful for collecting software that is unusually modified throughout the lifetime of the system and is also called firmware. We will aspect various types of ROM also check the full form of ROM above.

Types of ROM

We have discussed the full form of ROM in the above section. Now we are going to discuss the various types of ROM below.


MROM stands for Mask Read Only Memory. MROM is a memory chip that is made with its data. These are economical and the very first type of ROM, which were hard-wired mechanisms that include pre-programmed directions.


It is also one of the types of ROM which is having a blank chip for programming. PROM stands for Programmable read-only memory. A PROM is considered a blank chip. We can say it is a ROM without any content inside it. Therefore, in such a case, the user can freely add codes. But remember once the data has been inserted into the PROM, it could not be revised.


EPROM stands for Erasable Programmable read-only memory (ROM). This is a bit of an exception we can say because the data bunch could be deleted if the EPROM chip is shown to extreme ultraviolet light for some time. Once the data got deleted, newer data could be rewritten to it.


The full form of EEPROM is Electrically Erasable Programmable Read-Only Memory. The concept of EEPROM is somehow the same as the EPROM. EEPROM provides the stored data to be deleted electrically. Once the data got deleted, it could be rewritten electrically. So, this is how the EEPROM works.
There are more details of full form of ROM described here along  with types of ROM.

Flash Memory

It is the fastest ROM available here. Flash memory is a computer memory storage mechanism that can be electrically erased and reprogrammed. Flash memory can be erased and rewritten faster than ordinary EEPROM. Know more about the full form of ROM at Wiki.

Benefits of ROM

We have covered the full form of ROM and types of ROM in the previous section of this article. Here we will see some of the primary benefits of ROM below.
  • One of the most attractive benefits of ROM is Data Security. In this we can only write the data a single time and also we cannot modify the data. Therefore, accidental deletion of data could not happen.
  • This memory does not demand a constant power supply to maintain the data in the device, once the data has been written. Therefore, it preserves information even after the loss of power.
  • The concept is easy to understand. It includes a simple mechanism and is easy to handle.
  • ROM is cost-efficient. Therefore, it could be connected to devices with an efficient budget.

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Note: – At KitabDukan, We avail the complete information starting from the latest exam notification, and complete syllabus, and then we provide you the complete list of important books which are needed for exams. In this article, we have demonstrated the full form of ROM along with the needful information related to ROM.

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