Oracle 10g, g stands for grid. The following discussion of the Grid which I quoted from Wikipedia. Grid computing (grid computing) is the use of resources involves many separate computers that are geographically distributed and to solve problems in large-scale computing.

Background grid
The development speed of the processor developed in accordance with Moore’s Law, however bandwidth computer networks expand far more rapidly. The more quickly the lines of communication are opened up opportunities to combine the computing power of computing resources separate. This development enables large-scale distributed computing enhanced even further geographically, across the boundaries of existing administrative domains.
The rapid development of computer technology in advanced countries, making its researchers increasingly thirsty for computing power that can meet the challenges and problems they face. Although it already has a supercomputer with a very high capacity, what is out there felt this was still less, because they are trying to solve bigger problems. After all the computer that has a ” power -hungry computing researchers ” used an all-out to solve the problem, after a variety of ways to solve problems attempted, and selected the most efficient, but still the problem can not be solved as well, what should he do? Grid computing is one answer to this question.
definition of grid
According to the brief article [1 ] by Ian Foster no check -list that can be used to identify that a system of grid computing, namely:
The coordinate system of the computing resources that are not under a centralized control. If the resources used in the same administrative domain coverage, then it can not be said computing grid computing.
The system uses standards and protocols that are open ( not adrift in an implementation or a specific product ). Grid computing is composed of the agreements on fundamental issues, needed to bring together in a large-scale computing. Agreements and standards are needed in the areas of authentication, authorization, resource searches, and access to resources.
The system is trying to achieve a sophisticated quality of service, ( nontrivial quality of service ) which is well above the quality of service the individual components of the computing grid.
opportunities grid
In the book The Grid: Blue Print for a new computing infrastructure explained that what is meant by grid computing is the infrastructure hardware and software that can provide access to reliable, consistent, durable and inexpensive to sophisticated computing capabilities that are available.
” A computational grid is a hardware and software infrastructure That provides dependable, consistent, pervasive, and inexpensive access to high-end computational capabilities. ”
If someday in the future the technology needed to realize the vision of grid computing paradigm has been established, opportunities will be more open to cooperation across organizations, across continents and across the nation. Will open opportunities for researchers in Indonesia who want to do very complex computation, using the fastest supercomputer in the world, without having to make massive investments in information technology.
Products from Oracle Grid
Oracle has built a grid computing software infrastructure capable of dividing and balancing all of the load ( workload ) among different servers, and manage different servers as a single unit system.
The ability of grid computing is the equivalent of a mainframe because all components ( grids ) in – cluster. But unlike mainframes and servers SMP (symmetric multiprocessing ) are large, the grid is open ( open system technologies ) which could include small systems with Intel processors and Linux OS that costs so much cheaper.
The grid of Oracle’s products are:
Storage Grid: Automatic Storage Management ( ASM )
Grid Database: Real Application Server ( RAC )
Application Grid: Oracle Streams
Grid Control: Enterprise Manager Grid Control