Piagetâs Theory of cognitive development in early childhood is defined as the way a childâs mental activities and capabilities evolve through childhood to adolescents.
Universal Communications Format File. UCF file is an Universal Communications Format File. UCF is a special file format the you can use to display rich media files in WebEx sessions. WebEx is a web conference system. It is a tool for online meetings, conferences, and other Web-based events. Description link.
Game file type. The edf file extension is associated with RF Online, originally named Rising Force, a 3D MMORPG developed by CCR. The edf file contains game data, such as textures or sounds, that are used in RF Online. This edf file type entry was marked as obsolete and no longer supported file format. This type of file is no longer actively used and is most likely obsolete.