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Chapter 13 - I/O Systems

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Wayne Jones Jnr
Wayne Jones Jnr

I/O Hardware Application I/O Interface Kernel I/O Subsystem Transforming I/O Requests to Hardware Operations Streams Performance

Technologie
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Chapter 13: I/O Systems
Chapter 13: I/O Systems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Objectives ,[object Object],[object Object],[object Object]
I/O Hardware ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
A Typical PC Bus Structure
Device I/O Port Locations on PCs (partial)
Polling ,[object Object],[object Object],[object Object],[object Object],[object Object]
Interrupts ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Interrupt-Driven I/O Cycle
Intel Pentium Processor Event-Vector Table
Direct Memory Access ,[object Object],[object Object],[object Object]
Six Step Process to Perform DMA Transfer
Application I/O Interface ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
A Kernel I/O Structure
Characteristics of I/O Devices
Block and Character Devices ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Network Devices ,[object Object],[object Object],[object Object],[object Object],[object Object]
Clocks and Timers ,[object Object],[object Object],[object Object]
Blocking and Nonblocking I/O ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Two I/O Methods Synchronous Asynchronous
Kernel I/O Subsystem ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Device-status Table
Sun Enterprise 6000 Device-Transfer Rates
Kernel I/O Subsystem ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Error Handling ,[object Object],[object Object],[object Object]
I/O Protection ,[object Object],[object Object],[object Object],[object Object]
Use of a System Call to Perform I/O
Kernel Data Structures ,[object Object],[object Object],[object Object]
UNIX I/O Kernel Structure
I/O Requests to Hardware Operations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Life Cycle of An I/O Request
STREAMS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
The STREAMS Structure
Performance ,[object Object],[object Object],[object Object],[object Object],[object Object]
Intercomputer Communications
Improving Performance ,[object Object],[object Object],[object Object],[object Object],[object Object]
Device-Functionality Progression
End of Chapter 13

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Chapter 13 - I/O Systems