IBM developerWorks: IBM Linux Clusters -- White PaperNov 15, 2001, 23:10 (1 Talkback[s])
[ Thanks to Kellie for this link. ]
"IBM has embraced Linux with an enthusiasm that has surprised many industry watchers. While a true Linux evangelist might think that this is merely a recognition of the inevitable, one might argue that there is more to it than that.
A quick view of the statistics regarding operating systems market share and growth will convince one that the Linux movement is real. A vendor whose core product(s) are in direct competition with Open Source software on commodity hardware might rightfully be alarmed by this development. IBM's unique position as a computer vendor with a vast array of offerings, in hardware, operating systems, and middleware, allows a more enlightened view. Linux represents a major business opportunity for IBM, and IBM has responded to this market opportunity with an estimated investment of over $1B.
The market in which IBM exists has experienced many major paradigm shifts in recent memory. The technology shift from CISC to RISC (Complex Instruction Set Computing: large number of instructions, most operating in several machine cycles. Reduced Instruction Set Computing: fewer, more primitive instructions, each operating in a single machine cycle), is one example. The shift in supercomputing from vector architectures to parallel architectures is another. Many others could be cited but are of less immediate interest."