A distributed workstation cluster must be viewed like single computing resource and not as a group of particular workstations'.
Details of cluster were: 150MHz R4400 workstations, 64MB memory, 1 GB disc per workstation, 6 x 17" monitors, Cluster operating on local 10baseT Ethernet, Computing Environment Status, PVM, MPI (LAM and Chimp), Oxford BSP Library.
The operating system structure makes it tough to use features of current clusters like huge primary memories, low-latency communication and high operating speed. Advances in network and processor technology have greatly altered communication and computational power of local-area workstation clusters. Cluster computing can be used for load balancing in multi process systems.