Mac 
About the SD and SDXC card slot
Some Mac computers feature an SD (Secure Digital) or SDXC (SD extended capacity) card slot that enables these computers to read and write data to SD media inserted in the slot. Learn more about the SD and SDXC card slot.
iMac (Mid 2011): Memory specifications
Learn which kinds of memory to use with your iMac (21.5-inch, Mid 2011) and iMac (27-inch, Mid 2011).
iMac (Mid 2010): DVD audio distorted on HDTV
In some situations, if you connect an iMac (Mid 2010) running Windows XP using Boot Camp to an HDTV with a Mini-DisplayPort HDMI adapter, the audio coming from the HDTV may seem distorted.
iMac (Mid 2010): Memory specifications
Learn which kinds of memory to use with your iMac (21.5-inch, Mid 2010) and iMac (27-inch, Mid 2010).
iMac (Late 2009): Memory specifications
Learn which kinds of memory to use with your iMac (Late 2009).
Mac OS X: 64-bit kernel frequently asked questions
Learn about the 64-bit kernel on Mac OS X and its default configuration on some Macintosh models.
Intel-based Apple Portables: Caps Lock modified to reduce accidental activation
Pressing the Caps Lock key on certain Intel-based portables may not immediately activate the Caps Lock function.
Intel-based Apple Portables: Caps Lock modified to reduce accidental activation
Pressing the Caps Lock key on certain Intel-based portables may not immediately activate the Caps Lock function.
MacBook Air (Mid 2009, Late 2008, or Original): Reinstalling applications, resetting the password, and using Disk Utility using the MacBook Air SuperDrive
Learn how to reinstall the applications that came with your MacBook Air, reset your account password, and use Disk Utility with a MacBook Air SuperDrive.
iMac: Power consumption and thermal output (BTU) information
Learn about the power consumption and thermal output of iMac computers.
