single.dvi 37 Hard Disk Drives The last chapter introduced the general concept of an I/O device and showed you how the OS might interact with such a beast. In this chapter, we dive into more detail about one device in particular: the hard disk drive. These drives have been the main form of persistent data […]
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COMP2300/6300 Final Exam 2018 Student ID: u Reading time: 15 minutes Writing time: 180 minutes Permittedmaterials: one A4 page with notes on both sides Make sure you read eachquestion carefully. Somewords have footnotes1 to clarify what they mean in the context of the question. Questions are not equally weighted, and the size of the answer
COPE-04 Data Structures.indd 4 Data Structures Uwe R. Zimmer – The Australian National University Computer Organisation & Program Execution 2021 Data Structures © 2021 Uwe R. Zimmer, The Australian National University page 234 of 487 (chapter 4: “Data Structures” up to page 253) References for this chapter [Patterson17] David A. Patterson & John L. Hennessy
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COPE-02 Hardware-Software Interface.indd 2 Hardware/Software Interface Uwe R. Zimmer – The Australian National University Computer Organisation & Program Execution 2021 Hardware/Software Interface © 2021 Uwe R. Zimmer, The Australian National University page 98 of 481 (chapter 2: “Hardware/Software Interface” up to page 150) References for this chapter [Patterson17] David A. Patterson & John L. Hennessy
COMP / Mid-Semester Exam Semester Name: Student ID: Time: minutes reading, minutes writing Totalmarks: Permittedmaterials: double-sided A cheat sheet Instructions: Questions are not equally weighted, and the sizes of answer boxes do not necessarily relate to the number of marks given for this question. All answers must be written in the boxes provided in this
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COPE-01 Digital Logic.indd 1 Digital Logic Uwe R. Zimmer – The Australian National University Computer Organisation & Program Execution 2021 Digital Logic © 2021 Uwe R. Zimmer, The Australian National University page 9 of 481 (chapter 1: “Digital Logic” up to page 96) References for this chapter [Patterson17] David A. Patterson & John L. Hennessy
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COPE-08 Networks.indd 8 Networks Uwe R. Zimmer – The Australian National University Computer Organisation & Program Execution 2021 Networks © 2021 Uwe R. Zimmer, The Australian National University page 438 of 489 (chapter 8: “Networks” up to page 466) References for this chapter [Patterson17] David A. Patterson & John L. Hennessy Computer Organization and Design
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Lecture 17 CS 111: Operating System Principles Disks 1.0.0 Jon Eyolfson May 18, 2021 This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License cba http://creativecommons.org/licenses/by-sa/4.0/ The Structure of a Hard Disk Drive (aka HDD) 1 Access Speed Depends on Locality Sectors on same track can be read continuously Switching tracks needs repositioning
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Chapter 7 Storage Systems 2 • Magnetic Storage is a popular storage format for storing large amounts of data. • Common formats – Hard drives • Spinning magnetizable discs store data • Can be read randomly – Tape drives • Magnetizable tapes store data • Can only be read sequentially 7.6 Magnetic Disk Technology 3
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Announcements Persistence: I/O devices Reading: Chapters 35, 36 and 37 Questions answered in this lecture: How does the OS interact with I/O devices (check status, send data+control)? What is a device driver? What are the components of a hard disk drive? How can you calculate sequential and random throughput of a disk? What algorithms are
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