Increasing+Returns

Increasing returns occurs when two or more technologies emerge at the same time and fight it out until one stays supreme. An example of this would be when HD DVD and Blu Ray first emerged and clearly Blu Ray discs reigned as the high defition champion. This was not the case with either the overhead projector nor the Activboard because there really wasn't another technology like them available at the time of release. There was no other projector that causes the overhead projector to become obsolete and also the Activboard (although there are two major companies that manufacture them) does not have a similiar device that it defeated to become the emerging technology available for teachers today. In fact the Smartboard brand and Promethean brand offer the same basic service but are not two completly different concepts.

[]