The success of the industrial revolution was replacing many people or horses with machines able to do the work and not tire. Traditional model . Until recently there were only two basic models used with computer-based computation. While each model may have benefits, each has distinct disadvantages. Centralization may have computational speed issues as users compete for resources.
Decentralization suffers from poorer return on investment per minute of computational availability.
The machine is not working hard enough The popularity of local area networks seemed to address both concerns by improving the sharing of group resources without negatively impacting productivity. For example, quick network printers spread the cost of printing fast among many users, and fast, high-capacity backup storage devices spread the cost and reduce disaster vulnerability among those same users. Still, walk into any office and you see many computational minutes available wasted. One significant improvement to most new networks embraces a teamwork approach for the computer age. RAID, a redundant array of independent or inexpensive disks, combines two or more disk drives to improve the speed, reliability, and management of server disk storage systems.