DRIVER UPDATES
In order for all the individual components in your PC to work they need to have small software applications installed that tell the operating system how to use them. Most hardware made today will be "plug and play" which means once the component is installed Windows XP or later will find it and install the appropriate software. However Companies routinely release newer versions of their drivers to fix known issues or increase functionality, which windows won't automatically search for. To update your drivers follow these links below. If you are not sure about any component of your system you can find the specifics in the Device Manager. To open device manager right click my computer, select the hardware tab and pick device manager.
windows updates and drivers
Mac updates
For hardware updates, BIOS and drivers select a manufacture and hit GO to visit their support page.