How to Check if Your Computer Is 64 Bit In Mac OS X

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Whether you’re running 32-bit or 64-bit Windows makes a pretty big difference. Running a 64-bit version of Windows means having better security and the ability to use more memory in your system.

How to Check if Your Computer Is 64 Bit In Mac OS X

  • Launch Terminal app.
  • At prompt, type uname -a.
  • The terminal will display two lines of text.
  • At the end of the 2nd line, you’ll find something like either.
  • RELEASE_I386 i386 ; the latest i386 means that you’re running 32bits kernel.
  • RELEASE_X86_64 x86_64 ; the latest x86_64 means that you’re running 64bits kernel.