What is the full form of PROM EPROM and EEPROM

What is the full form of PROM EPROM and EEPROM?

PROM ( Programmable Read-Only Memory ):- It’s a computer memory chip that can be programmed once it’s been created. The data we store to the PROM becomes permanent after we programme it. As a result, we are unable to remove or delete the written data. BIOS systems in older PCs frequently employed the PROM chip.  All of the bits in PROM are ‘1’ when it is created. We can burn a bit to make it 0 if it should be that way. One big disadvantage of PROM is that it cannot be updated. To put it another way, we can’t reprogram it. We must instead discard it & swap it with a fresh chip.

EPROM ( Erasable Programmable Read-Only Memory ):- Without changing the EPROM, we can delete and reprogram it. The memory chip can be erased and written to by exposing it to UV light. Furthermore, the clear fused quartz window at the upper edge of the package makes it easy to identify EPROM. EPROM is more widely used than PROM as it enables manufacturers to change or rewrite the chip.

EEPROM ( Electrical Erasable Programmable Read-Only Memory ):- It’s a memory chip which can be erased and reprogrammed with the use of electricity. It is made up of a series of floating gate transistors. Flash memory is a form of EEPROM with a greater density and fewer write cycles than traditional EEPROMs. Either PROM & EPROM are replaced with EEPROM. It is used to store, erase, and reprogram data in a variety of applications, like computer devices, micro-controllers, smart cards, and so on.