Once upon a time, in the far-off world of Computerland, a great guru arose and declared a vision.
"I see a future when all computers will be linked together and people will run their programs without knowing which computers are running them. People do not need to know where their jobs run; they just need the results. I call this Grid Computing!"
The people of Computerland were excited by the guru's vision. They went away and worked to make it happen. When they were ready, they returned to the guru and said:
"Oh great guru! We have implemented your vision. We can run our programs on whichever processor is free at the time, making sure that all programs can run and making best use of all our processors. No longer does one computer sit idle while another one is overloaded. Your vision is a great success!"
"No, no, no!", said the guru, "That's not Grid!"
The guru explaine…