Yes, you can target your campaigns to desktop, tablet and mobile devices and as well as set device-specific CPC bid amounts.  Content.ad does not support the ability to target to specific operating systems

When setting up a new campaign, you will find this feature in the Campaigns section under Optional Settings.

To edit an existing campaign, go to the Campaigns section, locate the campaign to edit and click on the Setting icon settings pic to edit the campaign.  Next, click on Optional Settings, then select Target by Device, and select the device types to target and enter the device specific CPC’s.  Be sure to scroll down and click the Save button before exiting.

If you have a support question or bug report, please contact our support team.