Network devices(网络设备) Varying enough from block and character to have own interface (从块设备和字符设备变化而来,有独自的接口) Unix and windows/NT include socket interface (Unx和 Windows/nt包括 socket接口) l_ Separates network protocol from network operation (分离网络协议于网络操作) ncludes select functionality(包括 select功能) Approaches vary widely(pipes, FIFOs, streams, queues mailboxes)(方式广泛:管道,FFOs,流,队列,邮箱) Applied Operating System Concepts Silberschatz, Galvin, and Gagne @199912.10 Silberschatz, Galvin, and Gagne ©1999 Applied Operating System Concepts Network Devices（网络设备） • Varying enough from block and character to have own interface （从块设备和字符设备变化而来，有独自的接口） • Unix and Windows/NT include socket interface （Unix和Windows/NT包括socket接口） – Separates network protocol from network operation （分离网络协议于网络操作） – Includes select functionality（包括select功能） • Approaches vary widely (pipes, FIFOs, streams, queues, mailboxes)（方式广泛：管道，FIFOs，流，队列，邮箱）