Microdrive
Updated: 05/19/2017 by Computer Hope
Developed by IBM in 1999, the Microdrive when released was the smallest hard drive in the world and contained 170 MB of storage space. The picture shows an example of a disassembled 4 GB Microdrive from an iPod Mini. Today, this drive is made by various manufacturers, but because the name is trademarked by Hitachi, it has different names, such as 1-inch hard drives. These drives range in size from 170 MB to 8 GB and, although still used today, they are being replaced by CompactFlash.