> The problem is that the PC's BIOS only maintains 10 bits to address the 
 > cylinder when seeking the sector in question.  That leaves room for only 
 > 1024 cylinders.  To change this would invalidate every operating system 
 > for the PC that uses the BIOS for disk I/O.
The current working high density Segate development drives (near something?? 
technology) are currently @ 10,000 cylinders per inch in the lab.  Seagate 
hopes to develope that to 100,000 cylinders per inch in the comming years.
Some of the newer drives will have their own BIOS, and RAM, in addition to 
the cache to support 100 Mb/Sec+ transfer rates.  These will become avalable 
in newer servers 1st, then in other new hardware.
High end becomes the norm, as newer and newer technolgy becomes available, 
and/or cost of production becomes lower than old technology, ect.
Don't worry, be happy ;).  Don't worry about details, as everyrhing you 
learned, becomes obsolete very quickly.  New releases of software, or new 
drivers for old software will support the new hardware.
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