DOS as an operating system is all but dead with the latest versions of Windows. However, the DOS command line is alive and well, and will keep kicking well into the new millenium. The command line itself adds no burden on a system and is actually quite versatile for certain tasks.
For instance, using Windows, how fast can you change the extension of a group of files? It's a tedious, time consuming task. But with DOS, it's one line.
REN *.DOC *.BAK
Simple as that.
Modus