Sun Microsystems and Microsoft have been lambasted by a major industry figure for their plans to dominate the computer market.
Adrian Hammerstein, chief executive of Fujitsu-Siemens, said in a keynote speech at his company's Product and Trend show in Paderborn, Germany that neither company had the correct strategy for dealing with the future shape of computing in the enterprise.
"Sorry Scott, sorry Bill, one size cannot fit all," said Hammerstein as he took a sideswipe at Scott McNealy and Bill Gates. "Computing needs depend on applications and customer requirements; they will be different from case to case."
Hammerstein explained that future technological developments in mobile devices will have a profound effect on professional lives.
He predicted that growth in the PC market would remain low for the next three years while wireless devices would see "explosive growth".
"The last 20 years have been dominated by one device, the PC. No single device will dominate the next phase of the information age," Hammerstein said.
He warned that enterprises would have to ensure service availability to their workforces no matter where they were, and integrate mobile devices into their infrastructure. The mobile workforce is already placing huge demands on companies' infrastructures, he said.
The second part of Hammerstein's speech concentrated on what he termed "business critical computing".
He maintained that high availability was now moving down from the data centre to the whole network infrastructure, including wireless devices and web servers. "You don't want to lose orders, so keeping systems connected is key," he said.
Nintendo sales double and profits balloon by 500 per cent as Shuntaro Furukawa is appointed president
Switch console sold more than 15 million units, while SNES Classic sold more than five million
High-precision measurements of nearly 1.7 billion stars made by Gaia space observatory
Water trapped in asteroids could be the source of the Earth's seas
Latest Skip Ahead build focuses on mobile and a number of small fixes