HP Multi-User PC Sparks Debate (Wired News)
Here’s an interesting look at the old network computer console versus PC debate: A hybrid; a machine that runs 4 monitors 4 keyboards and 4 mice. HP want to sell this in Africa but this article points to some conspiracy theory that stops this technology from being applied in the West because comuter suppliers don’t want to ruin their markets. Obviously, this technology could be applied not just in our schools but also in our businesses.
I’m not so sure about the conspiracy theory. As you might expect you this technology is available to any enthusiast already. See Linux Solution used in Brazil. Its entirely possible, Using a standard PC and 3 extra monitors on PCI cards with USB mice & keyboards.
This whole debate hinges on the possible processing we can get out of our PCs, we really use only a tiny fraction of the cycles available. Lets face it even when its turned on, our PC is most often just sitting there waiting for our instructions or input. I am still happy running office apps, browser and email on a 500 MHz machine, so why not share today’s 2 GHz machine between 4 users. I don’t know how it allocates its cycles but theoretically I still could have at least my 500 Mhz but because my fellow users might not be using theirs at that moment, I might get a lot more.
What a Multi-user PC is doing is giving us higher utilization from a single PC.
A networked system has all the processing power at the centre, gave us the best utilisation from a single CPU it also can be easier and cheaper to maintain – but requires highly trained personnel and is vulnerable to failure and network congestion.
A PC network moves most of the processing to the edges, which makes it more tolerant to failure and over demand as there is no single point of failure. This is the model we are used to – your machine goes down in the office and its inconvenient but not the end of the world if it takes a day or more to get fixed.
The hybrid will only win through if it can combine the advantages of both systems. What happens if it needs more skillful personnel to keep it going? Then each time a machine goes down, you loose 4 seats rather than just 1. In the third world computer techs can be reletively cheap when compared to hardware costs. In the developed world its different.
On the other hand to reduce the number of CPUs needed by a factor of 4 is heady economics.