From: <firstname.lastname@example.org> > It's hard to imagine IBM foregoing a big bunch of profit from > MVS (or z/OS or whatever) by offering Linux in its place. I suspect > that the profit margin is reasonably similar and that the price > difference reflects some actual costs, perhaps costs of ongoing > maintenance and enhancement. Those costs might drop significantly > with Linux allowing lower price per server. It seems to me that market potential is driving IBM to support Linux. Not short term profit. IBM wants market share. After a new customer base is established, or an existing customer base is shored-up, they will profit via middleware. Consider how IBM prices interactive features separately on the iSeries. The higher price has little to do with cost. It's a value proposition. The value comes partly from legacy applications (ironically, which other people write), partly from the cost of moving to other platforms (the lock-in effect), and partly because of its efficiency in comparison to other alternatives. Most of my work in 1981-1987 was under MVS. It hasn't changed that much since then. TSO, JCL, ISPF, CICS, IMS, DB2, etc :-) Nathan M. Andelin www.relational-data.com
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