Now that you have installed the RAM, you are ready to install the floppy, hard drive and CD-ROM ( Compact Disk - Read Only Memory ) into the drive bays. A drive bay is the opening in your case designed for the mounting of drives. If you have two floppy drives, you must first choose which drive will be A: and which drive will be B:. If you only have one drive then it will be A:. The only difference between A: & B: is that A: is the bootable drive. The hard drive or drive C: is normaly the boot drive after DOS is properly loaded on your system. Basically this means that if you have