power point
Microsoft
PowerPoint is the name of a proprietary
commercial
software presentation
program developed by Microsoft. It was
officially launched on May 22, 1990 as a part of the Microsoft Office suite, and runs on Microsoft Windows and Apple's Mac OS X operating system. The current
versions are Microsoft Office PowerPoint 2010 for Windows and Microsoft Office
PowerPoint 2011 for Mac.
History
Originally
designed for the Macintosh computer, the initial release was called
"Presenter", developed by Dennis Austin[not in citation given] and Thomas
Rudkin[not in citation given] of Forethought,
Inc.[1]
In 1987, it was renamed to "PowerPoint" due to problems with
trademarks, the idea for the name coming from Robert Gaskins.[2]
In August of the same year, Forethought was bought by Microsoft for $14 million
USD ($28.6 million in present-day terms[3]),
and became Microsoft's Graphics Business Unit, which continued to develop the
software further. PowerPoint was officially launched on May 22, 1990, the same
day that Microsoft released Windows 3.0.
PowerPoint
changed significantly with PowerPoint 97. Prior to PowerPoint 97, presentations
were linear, always proceeding from one slide to the next. PowerPoint 97
incorporated the Visual Basic for Applications (VBA)
language, underlying all macro generation in Office 97, which allowed users to
invoke pre-defined transitions and effects in a non-linear movie-like style
without having to learn programming.
PowerPoint 2000
(and the rest of the Office 2000 suite) introduced a clipboard that could hold
multiple objects at once. Another change was that the Office Assistant was
changed to be less intrusive.[4]
As of 2012[5] ,
various versions of PowerPoint claim ~95% of the presentation software market
share, having been installed on at least 1 billion computers; the frequency of
use in presentations had been estimated at around 350 per second globally.
See also: Microsoft Office 2000
Operation
PowerPoint
presentations consist of a number of individual pages or "slides".
The "slide" analogy is a reference to the slide
projector. A better analogy would be the "foils" (or
transparencies/plastic sheets) that are shown with an overhead projector, although they are in decline
now. Slides may contain text, graphics, sound, movies, and other objects, which
may be arranged freely. The presentation can be printed, displayed live on a
computer, or navigated through at the command of the presenter. For larger
audiences the computer display is often projected using a video
projector. Slides can also form the basis of webcasts.
PowerPoint
provides three types of movements:
1.
Entrance, emphasis, and exit of
elements on a slide itself are controlled by what PowerPoint calls Custom Animations.
2.
Cultural impact
3.
A PowerPoint presentation in progress.
5.
lot of time for people who otherwise
would have used other types of visual aid—hand-drawn or mechanically typeset
slides, blackboards or whiteboards, or overhead projections. Ease of use also
encourages those who otherwise would not have used visual aids, or would not
have given a presentation at all, to make presentations. As PowerPoint's style,
animation, and multimedia
abilities have become more sophisticated, and as the application has generally
made it easier to produce presentations (even to the point of having an
"AutoContent Wizard" (discontinued in PowerPoint 2007) suggesting a
structure for a presentation), the difference in needs and desires of
presenters and audiences has become more noticeable.
The benefit of PowerPoint
is continually debated, though most people believe that the benefit may be to
present structural presentations to business workers, such as Raytheon Elcan
does.[9]
Its use in classroom lectures has influenced investigations of PowerPoint’s
effects on student performance in comparison to lectures based on overhead
projectors, traditional lectures, and online lectures. Not only is it a useful
tool for introductory lectures, but it also has many functions that allow for
review games, especially in the younger grades. There are no compelling results
to prove or disprove that PowerPoint is more effective for learner retention
than traditional presentation methods.[10]
The effect on audiences of poor PowerPoint presentations has been described as
PowerPoint hell.
animated in a
variety of ways.
Custom
animation can be used to create small story boards by animating pictures to
enter, exit or m.
from: en.wikipedia.org/wiki/Microsoft_PowerPoint
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