# How to relate memory address to physical components in RAM?

I am trying to understand how are the micro-scale components arranged to relay address information to the Operating system software.

What are the components that make up the ram which actually contribute to the address?

Also, how many such components would a ... say 2GB RAM contain?

• Your question doesn't seem very clear, but does this answer have any useful information? – Roger Rowland Sep 14 '15 at 14:31
• @RogerRowland it was helpful but NOT what I asked. My question is: Can 1 capacitor make up an address 0X00FF? Is there a 1:1 relationship between physical and logical? – Spandan Sep 14 '15 at 14:37
• I don't know what you are asking, but the physical address ranges are divided in SODIMM and DIMM's. wiki them for more info. – MaMba Sep 14 '15 at 14:43
• I think that answer explains that the lowest level is one bit. An address refers to a number of bits that make up the word size of whatever computer architecture is under investigation. – Roger Rowland Sep 14 '15 at 14:43
• @RogerRowland its starting to make sense. So, if its say a 128 KB RAM, so total bits are 128*1024*8 bits. So, this many capacitors/electronic addressable components are present? – Spandan Sep 14 '15 at 14:52

2GB of memory requires 31 address lines. This is because 2$^{31}$ = 2147483648 (see this page for powers of 2 values).