File names and extensions, the DIR command, DIR/W, DIR/P, changing disks, wildcards
Peter Gosling · 1989
In this lesson you will learn to: First of all boot up your Personal Computer and if you are using a system with floppy disks and no hard disk leave the system disk in drive A. When all the technical information has been displayed on the screen eventually you will see either the prompt A> $$A>$$ if you have a purely floppy disk system or C> $$C>$$ if you are using a hard disk system.