Awhile ago, I'm having a research about "How Hard Disk Works?" and Google gave me the of HowStuffWorks. While reading the topic "Cassette Tape vs. Hard Disk" this line makes me curios.
In a cassette-tape deck, the read/write head touches the tape directly. In a hard disk, the read/write head "flies" over the disk, never actually touching it.
Can somebody explain this more deeply little bit. I mean, how the data is being read and write without touching the platter?
Hope somebody will give a brief explanation with this.
Edited by SHENGTON, 06 January 2011 - 09:05 PM.