what is RAM and ROM how are like how are the different ? what are EEROM ,PROM and EPROM
Answers
Answer:
ROM- Read only memory.
RAM- Random access memory .
PROM- Programmable read only memory.
EPROM- Electrically programmable read only memory.
Explanation:
What are the differences between ROM, PROM, EPROM and EEPROM?
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ROM : Read Only Memory. It can't be erased or written too.Memory chips that are programmed in the factory for large run production.
PROM : Programmable Read Only Memory. It is programmed only once by blown of internal fuses permanently and is also called Field Programmable ROM and is programmed bby using a ROM programmer in the lab or onsite
EPROM : Electrically Programmable Read Only Memory. It can be programmed using a higher voltage and erased using intense ultraviolet light. It have a small transparent window on top of the package which can be erased before reprogramming by exposing the chip to UV light for a specific time.
EEPROM is Electrically Eraseable Programmable Read Only Memory. It is programmed and erased many times over using the supply rail. It doesn't need a high voltage and they have limited writes. They can be erased by using electrical pulses for a finite number of times.