[4.8] Primary Storage
- ROM (read-only memory) -- the processor can read information
from ROM, but it can neither erase information from it nor write
to it -- thus the name, read-only memory.
- RAM (random-access
memory) -- the processor can load
programs and data into RAM and read from and write to RAM. RAM can
store any kind of information that the processor is capable of
handling. In random-access memory, it takes the same amount of time to
access any one piece of information as it does another, no matter where
it is stored in RAM.