A ____ is a group of similar or identical computers, connected by a high-speed network, that cooperate to provide services or run a single application.
Computer cluster is a group of computers which are connected together through high speed local area network into a single system. The member of a cluster usually share the same hardware and operating system and they work together to perform a same task. Computer cluster is designed to offer high performance and availability which cannot be achieved by a single computer. This is particularly important to solve a complex problem that require a very high computational cost and volume.
