A presentation program is supposed to help both the speaker with an easier access to their ideas and the participants with visual information which complements the talk. There are many different types of presentations including professional (work-related), education, entertainment, and for general communication. Presentation programs can either supplement or replace the use of older visual-aid technology, such as
pamphlets, handouts, chalkboards, flip charts, posters, slides and overhead transparencies. Text, graphics, movies, and other objects are positioned on individual pages or "slides" or "foils". The "slide" analogy is a reference to the
slide projector, a device that has become somewhat
obsolete due to the use of presentation software. Slides can be printed, or (more usually) displayed on-screen and navigated through at the command of the presenter. An entire presentation can be saved in video format. The slides can also be saved as images of any
image file formats for any future reference. Transitions between slides can be animated in a variety of ways, as can the emergence of elements on a slide itself. Typically a presentation has many constraints and the most important being the limited time to present consistent information. Many presentation programs come with pre-designed images (
clip art) and/or have the ability to import graphic images. Some tools also have the ability to search and import images from
Flickr or
Google directly from the tool. Custom graphics can also be created in other programs such as
Adobe Photoshop or
GIMP and then exported. The concept of
clip art originated with the image library that came as a complement with
VCN ExecuVision, beginning in 1983. With the growth of
digital photography and
video, many programs that handle these types of media also include presentation functions for displaying them in a similar "slide show" format, for example
iPhoto. These programs allow groups of digital photos to be displayed in a slide show with options such as selecting transitions, choosing whether or not the show stops at the end or continues to loop, and including music to accompany the photos. Similar to programming
extensions for an
operating system or
web browser, "add ons" or
plugins for presentation programs can be used to enhance their capabilities. Apps can enable a smartphone to be a remote control for slideshow presentations, including slide previews, speaker notes, timer, stop watch, pointer, going directly to a given slide, blank screen and more. Presentation programs also offer an interactive integrated hardware element designed to engage an audience (e.g.
audience response systems,
second screen applications) or facilitate presentations across different geographical locations through the internet (e.g.
web conferencing). Hardware devices such as
laser pointers and
interactive whiteboards can ease the job of a live presenter .
Programs As of 2007, MS
PowerPoint has become the dominant presentation tool because it is both readily available and easy for instructors to use (Grabe & Grabe 2007). It allows instructors to create and manipulate presentations in a wide variety of contexts that can enhance student’s interest and engagement (Mills & Roblyer, 2006). In addition, it helps instructors clearly identify the main points of a topic or activity while still providing the details through presentation (Loisel & Galer, 2004). Instructors can incorporate multiple types of media formats (e.g., diagram, photo, drawing, sound and video) that cannot be easily integrated together into one single medium. PowerPoint also provides graphical, transactional, aesthetic and interactive features. PowerPoint is for use in the classroom, and needs to be paired with use of an
LCD projector and large screen. == See also ==