Respuesta :
Answer:
read only memory chip or ROM chip
Explanation:
As per the name, this memory is read only. Data can only be read from this memory. This memory is embedded on a chip.
Data on a read only memory chip is considered as non-volatile. Data is not volatile means that data on the read only memory chip remains the same and is not changed or lost irrespective of the power loss of the computer system. Since the data is written on the read only memory chip and chip requires no power to hold data, data exists as long as the read only memory chip exists.
Examples include firmware whose data is never changed or lost.
Read only memory exists in different types which are described below.
1. ROM – read only memory
The contents of this type of memory, once written, cannot be changed.
The contents of this memory is permanent. The data is not lost in absence of power.
2. PROM – programmable read only memory
In this type of memory, each bit has a fixed value in the form of digit. Hence, it is known as programmable read only memory.
3. EPROM – erasable programmable read only memory
This type of read only memory is erasable which requires a special programming circuit.
The contents of this type of read only memory can be changed more than once.
4. EEPROM – electrically erasable programmable read only memory
This type of read only memory is erasable but with the help of electric current.
5. Flash memory
This is similar to electrically erasable programmable read only memory. This is a read only memory which can be erasable with electricity.
Certain types of read only memory can be re-programmed and its content can be changed. Despite this fact, read only memory is completely different from random access memory or RAM. RAM is present inside the CPU and holds the data as long as power is supplied to the computer. Thus, random access memory has volatile data.
