Disk scheduling policies - PowerPoint PPT Presentation

Input/Output Management and Disk Scheduling

Input/Output Management and Disk Scheduling. Chapter 11. Categories of I/O devices. Human-readable: printers video display keyboard... Machine Readable: disk, tape sensors... Communication line drivers modems. Main Characteristics. Data rate (bits or bytes?)

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528 views • 33 slides

Operating Systems 11 - disk

Operating Systems 11 - disk. PIETER HARTEL. Hardware. Intended for humans, local devices and communication (challenge?) Hardware support for interrupts and DMA. Direct Memory Access (DMA). CPU sends commands to controller indicating: w hat to do and w here in memory to get/put the data

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202 views • 11 slides

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