COMPUTER SCIENCE AND ENGINEERING
COMPUTER ORGANIZATION
| Question 
 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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|  |  RAM 
 | 
|  |  ROM 
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|  |  EEPROM 
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|  |  EPROM 
 | 
Detailed explanation-1: -EEPROM (electrically erasable programmable read-only memory ) is a user-modifiable ROM. It can be erased and reprogrammed (written to) repeatedly by applying an electrical voltage that is higher than normal.
Detailed explanation-2: -EEPROM can be programmed and erased electrically using field electron emission (more commonly known in the industry as “Fowler–Nordheim tunneling"). EPROMs can’t be erased electrically and are programmed by hot-carrier injection onto the floating gate.
Detailed explanation-3: -EPROMs are erased with ultraviolet light. The capabilities of EPROMs were extended with EEPROM (electrically erasable programmable read-only memory); flash memory, which is extensively used in computers in the early 21st century, is an EEPROM.
Detailed explanation-4: -To write to and erase an EPROM, you need a special device called a PROM programmer or PROM burner. An EPROM differs from a PROM in that a PROM can be written to only once and cannot be erased.
Detailed explanation-5: -Flash memory is an EEPROM (Electrically Erasable Programmable Read-Only Memory).