Primary
memory is computer memory that a processor or computer accesses
first or directly. Primary memory is also known
as primary storage or main memory.
Examples would be:
RAM,
ROM
RAM = Random Access
Memory
Data from Currently
running softwares is stored there. It is volatile which mean that the memory
deletes itself after the software is closed or the pc is shut down. Also it has
a special link to the CPU
ROM = Read Only Memory
Its contents are read
only. Contains BIOS (Basic Input Output System) . It is not volatile.
- Control Bus (bi directional)
- Address Bus (uni directional – From CPU to RAM
only)
- Data Bus (bi directional)
- Bus = a set of wires that connect two components
in a computer system