Grid computing is a form of distributed computing that has been used by businesses and organizations for decades. Grid computing is often used in conjunction with cloud computing, as the two technologies have similar goals: to provide cost-effective, high-performance computing resources for use by multiple organizations.
Grid computing provides software that allows computers across networks or even the world to work together on projects. This can help companies with large-scale projects that require many computers to complete.
With grid computing in cloud computing, you can use an application's services without having to download and install it on your computer.