Difference between 32 bit OS and 64 bit OS

[Pradeep_3]

Can any one help me telling difference betn 32 bit OS and 64 bit OS?
On HP-UX what are all ways to identify weather it is 32 bit or 64 bit OS?

Thank you in advance.
Paresh.

[Thierry Poels_1]

Hi,

following can/will help you:

swlist | grep -i hp-ux

getconf HW_32_64_CAPABLE

getconf HW_CPU_SUPP_BITS

getconf KERNEL_BITS

regards,
Thierry.

[Rajeev Shukla]

In nut shell its the capability of the OS and the processor to address 32/64 data instructions or registers.
The best way to find if its a 32/64 bit OS on HPUX is give a command
getconf KERNEL_BITS

this will tell you whether its 32 bit or 64 bit OS.

Do a man on getconf and you'll see more things you can find by this ...like 32/64 bit capability etc..


Thanks
Rajeev

[Mike Fisher_5]

Hi Paresh

Here's a good link which also leads to other links

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x0b1f543254bfd611abdb0090277a778c,00.html

If you need others simply search under "32-bit 64-bit"

Regards
Mike

[Emil Velez]

In a nutshell the 64 bit OS runs on 64 bit processors. A previous response talked about the size of the registers but what does this really mean.

Well programs can be bigger in size and data structures they can manipulate. The system can have more physical memory on it and because of more memory more programs can run on the system. So 64 bit although fully compatible with 32 bit is a evolution of the processor line.

[KCS_1]

Hi,Paresh

I am sure after read this thread,you understand what's difference between those.

Take some time to read under

http://devrsrc1.external.hp.com/STK/partner/64what.html






have a good day!