a four-stringed musical instrument of the violin family, slightly larger than the violin; a tenor or alto violin. 2. a labial organ stop of eight-foot or four-foot pitch, giving tones of a penetrating stringlike quality. Origin of viola1. Italian.
PPT is a file extension for a presentation file format used by Microsoft PowerPoint, the popular presentation software commonly used for office and educational slide shows. All text images, sound and video used in the presentation are contained in the PPT file.
Personal Storage Table. In computing, a Personal Storage Table (.pst) is an open proprietary file format used to store copies of messages, calendar events, and other items within Microsoft software such as Microsoft Exchange Client, Windows Messaging, and Microsoft Outlook.