US Patent 9537949 Computer system image clustering architecture and use

System and method for distributed computing. Each of multiple server computer systems may include one or more microservers, a network interface, and a network switch, coupled to the one or more microservers and the network interface, the network switch configured to switchably connect any of the microservers to a network via the network interface. Each microserver may be configurable to implement a respective server based on a computer image file, including a pre-execution environment (PXE) boot image. A management server computer may manage the server computer systems, including: providing or designating provision of computer image files to the server computer systems. Each server computer system may receive a computer image file from the management server computer or a designated computer image file store, implement a PXE boot image on a microserver accordingly, connect to one or more client computers over the network, and provide computer services to the client computers.