Discussion
The memory which is programmed at the time it is manufactured, is
Answer: B
Memory programmed at the time of manufacture is ROM.
Read-only memory in its original (mask) form has its contents built into the chip during fabrication. The data cannot be changed afterwards and are not lost when power is switched off, which is why ROM holds permanent startup and firmware programs.
RAM is read-write memory that loses its contents when power is removed. A PROM is supplied blank and programmed once by the user after manufacture. An EPROM can be erased by ultraviolet light and programmed again.
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