Слайд 2RAM
It is a volatile memory which means the data
stored in the RAM evaporates the moment you cut the
power supply. That’s one of the reasons we can’t use random access memory as permanent storage despite the fact that it’s way faster than the traditional magnetic disk-based hard drives.
All of the modern operating systems we use have built-in workarounds to handle RAM’s volatile nature. All the work done is constantly saved on the hard drive to avoid situations where unexpected system shutdown would result in data loss.
Слайд 3ROM
The ROM is a non-volatile memory; it doesn’t forget the
data even if the power supply is removed. ROM is
used to store firmware for the hardware which hardly gets any update, for instance, the BIOS
Слайд 5Virtual memory
Virtual memory is an abstraction of the main
memory. It extends the available memory of the computer by
storing the inactive parts of the content RAM on a disk. It fetches it back to the RAM when the content is required.
Слайд 6Cache memory
Cache memory is used to store frequently accessed data
in order to quickly access the data whenever it is
required. They both are conceptually the same; however they mainly differ in the matter of implementation.
Слайд 7Purposes
VM- It extends the memory capacity of a computer beyond
the one that is installed.
CM- It reduces the amount of
time needed to access the data.
