Mac Hardware

1. What Hardware is compatible with Mac OS Lion or later?

You need a Apple iMac or MacBook that has a Dual Core Intel, 64 bit Intel i3, i5, i7 or Xeon processor, and supports 64 bit EFI.
For memory, you need at least 2 GB of RAM (4GB recommended). For hard disk space, you need at least 8.8 GB of free space to install Mac OS.
For additional requirements, see Apple's Technical Specs.

To see what your current system setup is like, select About my Mac, and select System Report and check out the following information: System: Processor, Memory, Display, Network, Optical drives and so on.

2. How do I install Drivers for Hardware in Mac OS?

Apple provides all the drivers you need for running your Mac, updated drivers are supplied with Mac OS updates via the App Store program.
You may need to download and install drivers or software for third party items such as Printers, Scanners and Cameras attached to your Mac. See the manufacturer's website for the drivers.

3. How do I install third party drivers to Mac OS ?

Unlike Windows which has a Device Manager tool, Mac OS X can only install drivers via publicily available installation packages provided by the Manufacturer. To add other drivers, you need to add a Kernel Extension, also known as a kext package, to Mac OS X's /System/Library/Extensions folder with a driver and Info.plist which is a XML file with details about the device.

See OSx86 web page on how to do this.

4. How do I update the Firmware?

The Firmware does two functions: provide some low level functions to configure the hardware, provide some minimal input/output functionality for the display and keyboard and load the operating system from disk. This information can be updated by what's called 'Flashing the ROM' which means replacing the code in the ROM chip with new code. Firmware updates are available from Apple Downloads.

Firmware updates for Mac Desktops.
Firmware updates for Mac Notebooks.