The former adapts mupli-computer LP communication card,the later communicates between unix and DOS,which adapt ENTER network and UDP of TCP/IP. The multi-computer communication of virtual-reality hare ware platorm.

• 前者采用自己设计的多机并行通讯卡在DOS下完成 ,后者在UNIX和DOS间通讯 ,采用以太网和TCP/IP协议的UDP方式完成。