[humanpuff69]

Well if you dont know PXE is here according to wikipedia:

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In computing, the Preboot eXecution Environment (PXE, sometimes pronounced as pixie[1]) specification describes a standardized client-server environment that boots a software assembly, retrieved from a network, on PXE-enabled clients. On the client side it requires only a PXE-capable network interface controller (NIC), and uses a small set of industry-standard network protocols such as DHCP and TFTP.

The concept behind the PXE originated in the early days of protocols like BOOTP/DHCP/TFTP, and as of 2015 it forms part of the Unified Extensible Firmware Interface (UEFI) standard. In modern data centers, PXE is the most frequent choice[2] for operating system booting, installation and deployment.

but basically the cilent computer will boot through the server drive . it will save hard drive space and also cost because you only need to buy hard drive for server instead for all the cilent