This question already has an answer here:
- 32-bit vs. 64-bit systems 19 answers
My knowledge of computer hardware is fairly extensive, however it is apparent that this is not the case when considering types of operating systems. I've gone by the rule of thumb for years that if a machine is over 4GB, install a 64bit version in order to use all that memory, and the opposite for choosing 32bit operating systems.
In my latest purchase of a processor, I've noticed explicit detail highlighting the processors' architecture; "32bit" or "64bit". I know this has relevance to how many bytes can be stored in registers for memory addressing, but does this play part in when considering an OS, too?
For example, if your CPU is 64bit but you have 2GB memory, shall you choose the 32bit version of an OS? According to this question, the answer is yes. Can someone please explain this to me, if you have the time?
I would like to know the affects of installing a 32bit system on a 64bit system with 2GB, and what role the capacity of memory really has when choosing 32/64bit hardware and software.
Edit I've correct a mistake in paragraph 3 of the question.
Edit v2 Whilst, indeed, this is a duplicate, I did search for similar questions and that question linked above was not in the results. I blame the searching algorithm, not my now perceived laziness.