Saturday, March 19, 2011

How to find out if your Mac OS is 64 bits ?

You can go to About this Mac as given in screenshot below

A new window pops up which displays information about your Mac which looks like in screenshot below

If your mac has Mac OS X 10.5 or greater then it is a 64-bit operating system.
Your processor information also lets you know ,if your processor is Intel Core 2 Duo, Intel Xeon, and PowerPC G5 then it is 64-bit processors.

And anyways all the recent Macbooks being shipped are 64 bits.

1 comment:

  1. Hi Reetu,

    I think you are talking about 64-bit capable. i.e, able to run 64-bit apps. The way to find if your system kernel is 64-bit is click on moreinfo button and select software. If "64-bit Kernel and Extensions" is "Yes", its a 64-bit kernel.