In PowerPoint there are 9 types of chart. they are pie, bar, column, line, area, scatter diagram, doughnut, radar and surface charts. in excel there are 14 types of charts. they are pie, bar, column,...
A pie chart is called a pie chart because it looks like a piece of pie cut into sections... It ISN'T called a cake chart, because a cake chart would be to controversial. - iow (in other words) - a...
Can't post images here to give you a decent example of the PERT chart, here's an article on the subject: http://www.pmhut.com/using-pert-analysis , the article also explains how to make a PERT chart...