tape>cards>cassette>8" floppy>512K floppy>1.4mb floppy>100mb zip>250mb zip>700mb CD>4.7gb DVD>9.7gb DS DVD I may have missed someting, but you get the idea. Whatnext? I remember computer experts saying,"...what could you possiably use 64K of ram for?" A one time congress considered closing the patent office because everything important had already been invented.