32 bit vs 64 bit Comparison

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  1. Posts : 21
    64 bit windows 7 home premium
       #21

    Thanks lordbob I have 64 bit but I didn't know what the differences were until now. Jerry
      My Computer


  2. Posts : 6,885
    Windows 7 Ultimate x64, Mint 9
    Thread Starter
       #22

    iphone said:
    I dont think 64bit requires atleast 2GB ram as i ran 64bit Windows 7 on a laptop with 1GB
    It will run, but the minimum requirement is listed as 2Gb RAM.
    Source: Windows 7 system requirements - Microsoft Windows

    Lomai said:
    Thanks Lordbob
    You're welcome.
    jerrypc1 said:
    Thanks lordbob I have 64 bit but I didn't know what the differences were until now. Jerry
    No problem. The guide needed to be written. No idea why it hadn't been yet...

    ~Lordbob
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  3. Posts : 94
    Windows 7 32bit, Snow leopard
       #23

    Lordbob75 said:
    iphone said:
    I dont think 64bit requires atleast 2GB ram as i ran 64bit Windows 7 on a laptop with 1GB
    It will run, but the minimum requirement is listed as 2Gb RAM.
    Source: Windows 7 system requirements - Microsoft Windows
    Oh! thanks for clearing that
      My Computer


  4. Posts : 6,885
    Windows 7 Ultimate x64, Mint 9
    Thread Starter
       #24

    iphone said:
    Lordbob75 said:
    iphone said:
    I dont think 64bit requires atleast 2GB ram as i ran 64bit Windows 7 on a laptop with 1GB
    It will run, but the minimum requirement is listed as 2Gb RAM.
    Source: Windows 7 system requirements - Microsoft Windows
    Oh! thanks for clearing that
    Welcome.

    ~Lordbob
      My Computer


  5. Posts : 8
    Windows XP, Windows 7 Ultimate, Ubutun 10.04
       #25

    does 64bit OS mean it cannot be infected by virus because virus is 32 bit ?
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  6. Posts : 1,747
    window's 7
       #26

    luckylukevn said:
    does 64bit OS mean it cannot be infected by virus because virus is 32 bit ?
    I don't think so. And mind telling me how do you know certain virus 32 or 64. Just Asking :). Thanks
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  7. Posts : 1,325
    Windows7 Ultimate 64bit
       #27

    luckylukevn said:
    does 64bit OS mean it cannot be infected by virus because virus is 32 bit ?
    That depends on the virus, if the virus is compiled directly to a binary format that is not compatible with WoW, it won't infect Win64. If it does compatible, and can link to a 64bit compiled library, it can infect Win64.

    If the virus is created by an intermediary language (.net/java), if the perquisite requirement is there, it can infect Win64.

    Then again, there's a lot going on in the "infecting" stage, we can't really know for sure until we looked at the memory stack in action...

    zzz2496
      My Computer


  8. Posts : 8
    Windows XP, Windows 7 Ultimate, Ubutun 10.04
       #28

    zzz2496 said:
    luckylukevn said:
    does 64bit OS mean it cannot be infected by virus because virus is 32 bit ?
    That depends on the virus, if the virus is compiled directly to a binary format that is not compatible with WoW, it won't infect Win64. If it does compatible, and can link to a 64bit compiled library, it can infect Win64.

    If the virus is created by an intermediary language (.net/java), if the perquisite requirement is there, it can infect Win64.

    Then again, there's a lot going on in the "infecting" stage, we can't really know for sure until we looked at the memory stack in action...

    zzz2496
    Thanks!
      My Computer


  9. Posts : 6,885
    Windows 7 Ultimate x64, Mint 9
    Thread Starter
       #29

    luckylukevn said:
    does 64bit OS mean it cannot be infected by virus because virus is 32 bit ?
    Interesting question actually. Not something I ever thought about before.

    In general, I would expect hackers to write universal code as much as possible.

    ~Lordbob
      My Computer


  10. Posts : 1,325
    Windows7 Ultimate 64bit
       #30

    Lordbob75 said:
    luckylukevn said:
    does 64bit OS mean it cannot be infected by virus because virus is 32 bit ?
    Interesting question actually. Not something I ever thought about before.

    In general, I would expect hackers to write universal code as much as possible.

    ~Lordbob
    There is a "universal" code, that is by using intermediary runtime, like .net/java. But the downside of that road is the program will rely on that intermediary runtime, and the intermediary runtime MUST HAVE ACCESS to the core OS's functions to do it's harm.

    An alternative would be to modify the kernel and segment the binaries, making one binary contains 2 completely different datastreams. This method was used by Apple's Mac OS X in the transition between PPC and x86, one binary package contains two datastreams, one for PPC, another for x86.

    The last alternative, this will need you to modify the kernel and set the flag in the binary manually so that when it runs, it will invoke the processor's x86 legacy mode, and run it accordingly, but this has many downsides, too complex to explain...

    zzz2496
      My Computer


 
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