What is Computer ROM, its features and different types I computerjankariwale.blogspot.com

COMPUTER JANKARI WALE 

                         BY 

                 SAURABH

                        What is Computer ROM

The full name of the ROM is Read Only Memory. Its data can only be read. Cannot add new data to it. It is a Non-Volatile Memory. Guidelines related to computer functionality are stored in this memory.

Instructions to start the computer are stored in this memory. Which is called "Booting". In addition to computers, washing machines, microwave ovens and other electronic devices are programmed by ROM.

In this permanent memory, data is available forever. Data is not deleted even when power is off. This is also the primary memory.

ROMs are given once by Write by Manufactures. Therefore, no tampering with its data is possible.

Characteristics of Computer ROM

1. ROMs are permanent memory.

2.Basic Functionality instructions remain store 3.Are readable only.

4.They are cheaper than RAM.

5.CPU is part of memory.

Types of ROM

1.MROM

2.PROM

3.EPROM

4.EEPROM

1.  MROM

The full name of MROM is Mask Read Only Memory. It is programmed within the device by the manufactures. MROMs are cheaper than other ROMs and provide the ability to store more data in less space. Meaning its data store density is high.

2. PROM

PROM's full name is Programmable Read Only Memory. Data is written once in this Memory Chip. Which is always intact.

Special tools are used to write data in this ROM. They are also called PROM Programmer or PROM Burner. And the process of writing data in PROM is called PROM Burning.

3. EPROM

Its full name is Erasable Programmable Read Only Memory. As is clear from its name. The data available in this ROM can also be erased. Ultra-Violet Light is used to erase data.

4. EEPROM

The full name of EEPROM is Electrically Erasable Programmable Read Only Memory. Whose data can be erased by an Electrical Charge. It is slightly slower than other ROMs.