Definition - What does Cluster (Servers) mean?
A cluster, in the context of servers, is a group of computers that are connected with each other and operate closely to act as a single computer. Speedy local area networks enhance a cluster of computers' abilities to operate at an exceptionally rapid pace.
Techopedia explains Cluster (Servers)
Cluster are typically used for computing tasks such as algorithm decryption or scientific calculations. Cluster performance can match or exceed that of more expensive computers, sometimes even resulting in supercomputer capabilities.