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July 10, 1990


By CBR Staff Writer

Industry sources are suggesting that IBM will be making a massive announcement on September 11: Summit, the 4391, a J enhancement to lock users in until Summit ships and something in the disk control area are seen and some commentators reckon that the star of the show will be the 4391; it’s codenamed Harmony, but if the speculation is accurate, Discord would be more appropriate; targeted as a replacement for the 3090-120 up to the 400J, it’s not going to provide much comfort for 4381 users looking to upgrade from their 15 MIPS machines, and it does raise questions over the residual values of existing equipment; other sources say that it will be expensive, somewhere between UKP55,000 and UKP75,000 per MIPS, and also suggest that new three-cabinet system will be water-cooled with an unattractive footprint; as regards Summit, it’s unlikely to offer many surprises with a disappointing 40 MIPS, and 8nS cycle time; some analysts say that the J kicker will have 9Mbytes per second channels, plus optical channels – as will Summit; on disk control, it is likely that a 3990 Model 4 will be needed to support the faster channels in IBM’s plan.

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