Conclusion

Visual aid are an important part of presentations, which emphasize and clarify main points, and improving the look and appearance of presentations and  make them more interesting and eye catching .they helps to get the attention of audience and make the presentation  interesting for the listeners.but on the other side they also have some disadvantages .,like some of the options from them are expensive , so everyone cannot afford it , some are hard , other are difficult to handle. so as we all knows that "coin has two side  head and tale" similarly AV also have some pros and cons .

Props

Props provide a realistic reinforcement of massage content. it increase the participation  of listeners. that actually keep the  listeners on the track and they are active or concentrate like what is going on  in the presentation.however it leads the extra work. it required lots of efforts . It is also an expensive option of AV . Because it need to transporting and replacing worn objects. it is also a limited use with larger audiences.

Transparecies

Transparencies is also a kind of AV option . it gives professional  appearance with little practice . it is an easy task to prepare , maintain and update. it locate reliable equipment and limit information shown at one time. but on the other side it appear to some as an outdated  presentation method. hold speaker captive to the machine. it mostly provide poor and worse reproduction of photos and some graphics.So this provide the lower quality output , which put bad impression on the presentation.

Flipcharts and whiteboards

Flip charts and whiteboards are another kind of AV options . They provide inexpensive services and they are available at most sites. they are very easy to create and  they modify on the spot , they do record the comment from the audience . they are combine with high- tech visual in the same presentation , in spite of all these it also have some cons  because first of all , they required graphic talent. this optionn is only better for less audience , its hard for larger audience to see. . Prepared flip charts are cumbersome to transport and transport and easily worn with use.

videos yays

Videos give the accurate information and representation of the content . the big advantage of video in the presentations is that it gives all the detail information and keep the concentration of listeners while they are watching and listening . i also catch the interest of listener and make the presentation interesting and professional. It is a strong indication of forethought and preparation. however , it creates potential for comparability issues related to computer  video formats . even it is expensive to create and update , everyone cannot afford it.

multiedia Slides

Multimedia slides create professional appearance with many colors, art, graphic and other font options.These slides are easy to use and transport via removable storage media, web download and media or e-mail attachments. on the other hand, they require costly projection equipments and practice for smooth delivery .Tempt user to include razzle - dazzle features that may fail to add value.so the link below  is showing the multimedia slides .http://gallery.usgs.gov/videos/227 .


    
 

Laguage and Fluency

Language  play very vital role , when presenting. It is better if u use simple words while presenting instead of using long and complicate words in your slides, so that everyone can understand what presenter is talking about and they can participate by keeping their interest. however if your language is hard , then everyone cannot understand the thing , so they will loss their interest in the presentation.Secondly , if your are presenter than you have to speak fluently and smoothly , and put stress on the main words , so that people can understand your subject, otherwise if all the presentation is in same tune than , it going to be boring and interest less. people will not understand your main point.