[comp.sys.ibm.pc.misc] Differences between MFM/RLL/IDE/ESDI/SCSI drives?

Neptune@cup.portal.com (Dwayne R Farley) (02/13/91)

Greetings!

I'm looking at purchasing a new computer for my parents and in the
package there is an option to replace a 40MB IDE drive with a
100MB Rodime RLL drive.  The sales person said that this drive is
"certified" at 100MB, and not just a 65MB MFM drive using an RLL controller.
My question is is this a good deal?  Is the sales person correct that
a 100MB RLL is safe?  I've heard that RLL's can cause problems.

Secondly, can someone explain the differences between RLL/MFM/IDE in
an understandable manner?  How about ESDI/SCSI?

I'll post a summary of letters sent to me at neptune@cup.portal.com

Dwayne Farley