The bar chart or bar graph is a chart with rectangular bars with lengths proportional to the disk space that they represent. The bars are horizontally oriented. A label is displayed to the left side of the bar, and its size is displayed on the right. A scale is displayed at the top of the chart.
The bar chart allows for “drilling down” to subfolders in the Size data view. The drilldown capability is indicated by a finger cursor . The finger cursor is displayed when the mouse is positioned over any subdirectory of the currently displayed directory, and a single click will “drill down” and update the display to the directory under the mouse.