Here are some expressions commonly used in discussing presentations: visuals matters.
axis - a straight line through a body or figure that satisfies certain conditions, the centre around which something rotates bar chart - a chart with bars whose lengths are proportional to quantities broken line - interrupted line chart - a visual display of information diagram - a drawing intended to explain how something works dotted line - a line made up of dots or dashes; often used to indicate where you are supposed to sign a contract flip chart - a chart with several sheets hinged at the top; sheets can be turned or flipped over to present information sequentially flow chart - a schematic representation of a sequence of operations, as in a manufacturing process or computer program graph - a diagram that shows the changes taking place in something, by the use of connected lines, a curve or bars handout - something given freely, it can refer to materials handed out for presentation purposes horizontal - lying flat overhead projector (OHP) - a display system that is used to display images to an audience pie chart - a graphical representation of information in which each unit of data is represented as a pie-shaped piece of a circle pointer - a long tapered stick for indicating objects, as on a chart or blackboard screen - the display area of a computer monitor or a TV set solid line - a line uninterrupted in space; having no gaps or breaks table - an orderly columnar display of data transparency - picture consisting of a positive photograph or drawing on a transparent base; viewed with a projector or foil vertical - being or situated at right angles to the horizon; upright whiteboard - a panel covered with white, glossy plastic for writing on with erasable markers
Now we put new vocabulary into context, so you can see how you might use these terms yourself. The expressions are in boldface in the text.
In Microsoft Office PowerPoint, as in most other presentation software, text, graphics, movies and other objects are positioned on individual pages or "slides". The "slide" analogy is a reference to the slide projector, a device which has become somewhat obsolete due to the use of PowerPoint and other presentation software. Slides can be printed or more usually displayed on-screen and navigated through at the command of the presenter.