INTECH Electromagnetic interactive whiteboard,or Electronic whiteboard,is a term used to refer to two different types of presentation devices.One device is a projection screen that looks very similar to the boards used with erasable markers,but which works electronically,without the use of ink.The board displays digital images and has the capability to track drawings and writings in different colors.The other type of INTECH electromagnetic interactive whiteboard is a computer program that allows users in a teleconferencing environment to work on the same document in real time.