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To: Swamp Fox who wrote (1111)	10/31/1997 2:47:00 PM
From: Mary Beth Ford	Read Replies (1) \| Respond to of 17679

Gus and Swamp Fox Keep in mind that you are dealing with someone still absorbing computers 101. I have copied many pages from the research site and I am glazing over. Could you be a little more specific as to which section would give me the best basic knowledge in understanding the components in a disk drive. Now question #1: What is a thin film disk (magnetic film?) and how is it different from a disk drive coated in KM? Question #2: What is the difference between an over layer of KM and an under layer of KM? From IBM announcement "The data bits themselves are recorded onto a thin film of a ultra-low-noise, four component magnetic alloy film (THIS IS WAHT I THOUGHT KM WAS) that coats the aluminum disk. The alloy's (KM?) composition and fabrication conditions are designed for very high bit density and very low magnetic noise -- critical advantages in reading the tiny bits. Another thin thin coating of a hard material (KM? or what) protects the alloy from contact with the recording head." As you can see I don't have a great understanding of how actually KM is different from other coatings? alloy? hard materials? Give me a break I'm trying real hard to understand all this and then help!