That made a 100-megabyte Zip disk a useful tool for backing up data and sharing files with other people.

FORBES: Can Anything Save Iomega?

Indeed, this bargain Zeos comes with a paltry half-megabyte memory and a 42-megabyte hard drive, and lacks a floppy disk drive for the new 3-inch disks.

WSJ: Here's How to Survive Shopping for a PC

The biggest threat to the spinning disk is the flash memory, which has many advantages over the spinning disk but is ten times the price on a per-megabyte basis.

FORBES: Steve Forbes Interview: Whitney Tilson, Hedge Fund Manager, Part 2