MICROPROCESSOR AND MICROCONTROLLER

Detailed explanation-1: -A programmable read-only memory (PROM) is a form of digital memory where the contents can be changed once after manufacture of the device. The data is then permanent and cannot be changed. It is one type of read-only memory (ROM).

Detailed explanation-2: -The full form of PROM is Programmable Read-Only Memory. The full form of EPROM is Erasable Programmable Read-Only Memory. The full form of EEPROM is Electrically Erasable Programmable Read-Only Memory.

Detailed explanation-3: -PROM full form is programmable read-only memory. It is a type of non-volatile computer memory. This means that once data has been written to PROM, it cannot be erased. PROM is used to store programs or firmware for microcontrollers and other digital devices.

Detailed explanation-4: -PROMs are used for storage when their content is not expected to change, but in many applications, they have given way to EPROMs and EEPROMs, which can be reprogrammed. See PROM programmer, memory types and EEPROM.

Detailed explanation-5: -Read-only memory, or ROM, is a type of computer storage containing non-volatile, permanent data that, normally, can only be read, not written to. ROM contains the programming that allows a computer to start up or regenerate each time it is turned on.