回复：memory 和硬盘有什么不同?我的usb data traveler(2G)

来源: 于 2007-06-25 06:00:55 [旧帖] [给我悄悄话] 本文已被阅读：次

The main difference is memory is made up of a semi conductive CHIP, and a harddisk is a magnetic disk spinning very fast in a sealed case, at 5400rpm or 7200rpm.

All clear?