The video controller in that system is an Intel® HD Graphics first generation.
As you may know the video drivers for that controller are only provided by the operating system itself.
The driver that comes with Windows 8 has limited features as it does not include the GUI (graphics user interface), so some options like adjusting the video resolution may not be available; however, there is a newer version that can be installed by doing Windows Updates.
Please keep in mind that the inbox driver and the updated version from windows update is only for the officially released version of Windows 8 (which is paid) and not the RC (Release Candidate), or beta versions of Windows 8.
If you check the Device manager before running Windows* updates it will show the Inbox driver as version 18.104.22.16802, so after you run the updates the version will be posted as 22.214.171.12458. To check the driver version in the Device Manager, click on the device listed under display adapters and the click on the Driver tab. For information on using the Device Manager you can use the instructions on this site: