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CHAPTER

INPUT/OUTPUT

7.1 External Devices
Keyboard/Monitor
Disk Drive
7.2 I/O Modules
Module Function
I/O Module Structure
7.3 Programmed I/O
Overview of Programmed I/O
I/O Commands
I/O Instructions
7.4 Interrupt-Driven I/O
Interrupt Processing
Design Issues
Intel 82C59A Interrupt Controller
The Intel 82C55A Programmable Peripheral Interface
7.5 Direct Memory Access
Drawbacks of Programmed and Interrupt-Driven I/O
DMA Function
Intel 8237A DMA Controller
7.6 I/O Channels and Processors
The Evolution of the I/O Function
Characteristics of I/O Channels
7.7 The External Interface: Firewire and Infiniband
Types of Interfaces
Point-to-Point and Multipoint Configurations
FireWire Serial Bus
InfiniBand
7.8 Recommended Reading and Web Sites
7.9 Key Terms, Review Questions, and Problems
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