●●● 13. /0 Systems ●●●● ●●●●● ●●● 13.oVerview ●●●0● ●●●0 13.2 0 Hardware 13 3 Application IO Interface 13 4 Kernel O Subsystem 13.5 Transforming lO Requests to Hardware Operations °136 STREAMS 13.7 Performance5 13. I/O Systems ⚫ 13.1Overview ⚫ 13.2 I/O Hardware ⚫ 13.3 Application I/O Interface ⚫ 13.4 Kernel I/O Subsystem ⚫ 13.5 Transforming I/O Requests to Hardware Operations ⚫ 13.6 STREAMS ⚫ 13.7 Performance