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Regarding: 32 Vs 64 bit RRS feed

  • Question

  • Hi all

    i am slightly confused about 32 bit vs 64 bit


    Q1) I have a laptop which has intel CPU and is based on X86 architecture,which means its registers are 32 bit ?, now what types of OS can i install , can i install only 32 bit or can i even install 64 bit os

    Q2) I have a laptop which has intel CPU and is based on x64 architecture,which means its registers are 64 bit ?, now what types of OS can i install , can i install only 64 bit or can i even install 32 bit os

    Q3) as a developer if someone is asking me a question like will a 32 bit application run on my 64 bit os, should i be concerned more about the OSes Bitness or CPU architecture's Bitness.

    Q4)what is the correct combination 32bit CPU->32Bit OS ->32 Bit applications ?

    Q5) what are the other correct combinations ? 

    Thursday, February 7, 2013 2:18 PM

Answers

  • Q1) I have a laptop which has intel CPU and is based on X86 architecture,which means its registers are 32 bit ?, now what types of OS can i install , can i install only 32 bit or can i even install 64 bit os

    32-bit only

    Q2) I have a laptop which has intel CPU and is based on x64 architecture,which means its registers are 64 bit ?, now what types of OS can i install , can i install only 64 bit or can i even install 32 bit os

    Either 32 or 64-bit.

    Q3) as a developer if someone is asking me a question like will a 32 bit application run on my 64 bit os, should i be concerned more about the OSes Bitness or CPU architecture's Bitness.

    Not for Windows OS's.
    Well behaved 32-bit Windows applications should run fine on 64-bit
    Windows OS's.

    Q4)what is the correct combination 32bit CPU->32Bit OS ->32 Bit applications ?

    32 bit applications should run on both 32 & 64-bit versions of
    Windows.
    64-bit applications can only run on 64-bit versions of Windows.

    Dave

    • Marked as answer by Rekha_KP Friday, February 8, 2013 5:03 AM
    Thursday, February 7, 2013 3:01 PM