what is the need for primary storage
data can be read from and written to primary memory extremely quickly. This gives the processor fast access to the data and instructions that the primary memory holds.
what are the two types of primary storage
RAM AND ROM
what is RAM
main memory in computer
What is ROM
is non-volatile primary memory. Its contents are not lost when the computer is turned off. ideal for storing instructions and data that are needed for the computer to run. The BIOS (Basic Input Output System) is an example of a program that is stored in ROM
What happens when RAM is filled with data
moves data to location on secondary storage called virtual memory
what is virtual memory
when too much applications are used so when a particular application is required it is moved back to RAM this is really slow