You have many more formatting options when you present your résumé on paper.
This writer has used a two-column table to organize the information. The left column presents the headings; the right column presents the data. The advantage of using a table rather than moving text using tabs is that you can use different text attributes (for instance, the headings can be boldfaced, set in a different typeface, or set in a different size) without having to worry about whether the different attributes will alter the line spacing. In addition, if you use a table, you can easily revise and edit; with tabs, your editing will create awkward line breaks and alignment.