Microsoft PowerPoint
 Microsoft PowerPoint 2010 in Windows 7 | |
| Developer(s) | Microsoft |
| Stable release | 2010 (14.0.4760.1000) / June 15, 2010 |
| Operating system | Microsoft Windows |
| Type | Presentation program |
| License | Proprietary commercial software |
| Website | office.microsoft.com/en-us/powerpoint |
 | |
|---|---|
 Microsoft PowerPoint for Mac 2011 running on Mac OS X Snow Leopard | |
| Developer(s) | Microsoft |
| Stable release | 2011 (14.0.100825) / October 26, 2010 |
| Operating system | Mac OS X |
| Type | Presentation program |
| License | Proprietary commercial software |
| Website | microsoft.com/mac/powerpoint |
Microsoft PowerPoint, usually just called PowerPoint, is a commercial presentation program developed by Microsoft. It is part of the Microsoft Office suite, and runs on Microsoft Windows and Apple's Mac OS X operating system. The current versions are Microsoft PowerPoint 2010 for Windows and 2011 for Mac.
History
The original version of this program was created by Dennis Austin and Thomas Rudkin of Forethought, Inc.[1] Originally designed for the Macintosh computer, the initial release was called "Presenter". 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 ($27.1 million in present-day terms[3]), and became Microsoft's Graphics Business Unit, which continued to develop the software further.
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 noticeable change was that the Office Assistant, whose frequent unsolicited appearances in PowerPoint 97 (as an animated paperclip) had annoyed many users, was changed to be less intrusive.[4]
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. Slides may contain text, graphics, sound, movies, and other objects, which may be arranged freely. PowerPoint, however, facilitates the use of a consistent style in a presentation using a template or "Slide Master".
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:
- Entrance, emphasis, and exit of elements on a slide itself are controlled by what PowerPoint calls Custom Animations
- Transitions, on the other hand are movements between slides. These can be animated in a variety of ways
- Custom animation can be used to create small story boards by animating pictures to enter, exit or move.
Cultural impact
Supporters say that[5][6][7] the ease of use of presentation software can save a 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.[8] 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.[9] The effect on audiences of poor PowerPoint presentations has been described as PowerPoint hell.
Although PowerPoint has the aforementioned benefits, some argue that PowerPoint has negatively impacted society. Many large companies and branches of the government use PowerPoint as a way to brief employees on important issues that they must make decisions about. Opponents of PowerPoint argue that reducing complex issues to bulleted points is detrimental to the decision making process; in other words, because the amount of information in a presentation must be condensed, viewing a PowerPoint presentation does not give one enough detailed information to make a truly informed decision.
A frequently cited example is Edward Tufte's analysis of PowerPoint slides prepared for briefing NASA officials concerning possible damage to the Space Shuttle Columbia during its final launch.[10] Tufte argues that the slides, prepared by the Boeing Corporation, had the effect of oversimplifying the situation, and provided false assurance that the ultimately fatal damage to the shuttle was only minimal. Tufte argued:
- The most critical information was consigned to the lowest level of importance in the outline style.
- The low resolution of the slides encouraged the use of acronyms and undescriptive pronouns instead of specific, descriptive terms and language.
- PowerPoint's limited font styling obscured proper notation of key scientific measurements.
Tufte concluded that:
The language, spirit, and presentation tool of the pitch culture had penetrated throughout the NASA organization, even into the most serious technical analysis, the survival of the shuttle.[10]
A review of Tufte's book, The Cognitive Style of PowerPoint can be read online.[11]
PowerPoint Viewer
The Microsoft Office PowerPoint Viewer is a program used to run presentations on computers that do not have Microsoft PowerPoint installed. The Office PowerPoint Viewer is added by default to the same disk or network location that contains one or more presentations you packaged by using the Package for CD feature.
The PowerPoint Viewer is installed by default with a Microsoft Office 2003 installation for use with the Package for CD feature. The PowerPoint Viewer file is also available for download from the Microsoft Office Online Web site.
Presentations password-protected for opening or modifying can be opened by the PowerPoint Viewer. The Package for CD feature allows you to package any password-protected file or set a new password for all packaged presentations. The PowerPoint Viewer prompts you for a password if the file is open password-protected.
The PowerPoint Viewer supports opening presentations created using PowerPoint 97 and later. In addition, it supports all file content except OLE objects and scripting.
Versions
Versions for Microsoft Windows include:
- 1990 PowerPoint 2.0 for Windows 3.0
- 1992 PowerPoint 3.0 for Windows 3.1
- 1993 PowerPoint 4.0 (Office 4.x)
- 1995 PowerPoint for Windows 95 (version 7.0) — (Office 95)
- 1997 PowerPoint 97 (version 8.0) — (Office 97)
- 1999 PowerPoint 2000 (version 9.0) — (Office 2000)
- 2001 PowerPoint 2002 (version 10) — (Office XP)
- 2003 Office PowerPoint 2003 (version 11) — (Office 2003)
- 2007 Office PowerPoint 2007 (version 12) — (Office 2007)
- 2010 PowerPoint 2010 (version 14) — (Office 2010)
- Note: There is no PowerPoint version 5.0 or 6.0, because the Windows 95 version was launched with Word 7.0. All Office 95 products have OLE 2 capacity — moving data automatically from various programs — and PowerPoint 7.0 shows that it was contemporary with Word 7.0.
- Note 2: Version number 13 was skipped due to superstition.
Versions for the Mac OS include:
- 1987 PowerPoint 1.0 for Mac OS classic
- 1988 PowerPoint 2.0 for Mac OS classic
- 1992 PowerPoint 3.0 for Mac OS classic
- 1994 PowerPoint 4.0 for Mac OS classic
- 1998 PowerPoint 98 (8.0) for Mac OS classic (Office 1998 for Mac)
- 2000 PowerPoint 2001 (9.0) for Mac OS classic (Office 2001 for Mac)
- 2002 PowerPoint v. X (10.0) for Mac OS X (Office:Mac v. X)
- 2004 PowerPoint 2004 (11.0) for Mac OS X Office:Mac 2004
- 2008 PowerPoint 2008 (12.0) for Mac OS X Microsoft Office 2008 for Mac
- 2010 PowerPoint 2011 (14.0) for Mac OS X Microsoft Office 2011 for Mac
Note: There is no PowerPoint 5.0, 6.0 or 7.0 for Mac. There is no version 5.0 or 6.0 because the Windows 95 version was launched with Word 7. All of the Office 95 products have OLE 2 capacity — moving data automatically from various programs — and PowerPoint 7 shows that it was contemporary with Word 7. There was no version 7.0 made for Mac to coincide with either version 7.0 for Windows or PowerPoint 97.[12][13]
Microsoft PowerPoint 2010
PowerPoint 2010 has changed from its predecessor. Screen Capturing has been introduced, allowing you to take a screen capture and add it onto your document. Also, you can now remove background images and you can add special effects, such as 'Pencil effects' onto pictures. Plus, new transitions are available. However, the ability to apply certain text effects directly onto existing text, seen in Microsoft Word is not available; a separate WordArt text box is required.
File formats
| Filename extension | .ppt, .pptx, .pps, or .ppsx |
|---|---|
| Internet media type | application/vnd.ms-powerpoint |
| Developed by | Microsoft |
| Type of format | Presentation |
The binary format specification has been available from Microsoft on request, but since February 2008 the .ppt format specification can be freely downloaded.[14]
In Microsoft Office 2007 the binary file formats were replaced as the default format by the new XML based Office Open XML formats, which are published as an open standard. Nevertheless, they are not complete as there are binary blobs inside of the XML files, and several pieces of behaviour are not specified but refer to the observed behaviour of specific versions of Microsoft product.
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