'Magnetic disk' diaporamas de présentation

CS 320, Operating Systems

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Chapter 2 Computer Hardware

Chapter 2 Computer Hardware. Chapter Contents. Section A: Personal Computer Basics Section B: Microprocessors and Memory Section C: Storage Devices Section D: Input and Output Devices Section E: Hardware Security. FastPoll True/False Questions Answer A for True and B for False.

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The Big Picture: Where are We Now?

Control. Control. Datapath. Datapath. The Big Picture: Where are We Now?. I/O Systems. Network. Processor. Processor. Input. Input. Memory. Memory. Output. Output. interrupts. Processor. Cache. Memory - I/O Bus. Main Memory. I/O Controller. I/O Controller. I/O Controller.

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Chapter Goals

Chapter Goals. Describe the distinguishing characteristics of primary and secondary storage Describe the devices used to implement primary storage Describe memory allocation schemes Compare and contrast secondary storage technology alternatives. Chapter Goals (continued).

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Chapter Goals

Chapter Goals. Describe the distinguishing characteristics of primary and secondary storage Describe the devices used to implement primary storage Describe memory allocation schemes Compare and contrast secondary storage technology alternatives. Chapter Goals (continued).

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CS252 Graduate Computer Architecture Lecture 25 Disks and Queueing Theory GPUs April 25 th , 2011

CS252 Graduate Computer Architecture Lecture 25 Disks and Queueing Theory GPUs April 25 th , 2011. John Kubiatowicz Electrical Engineering and Computer Sciences University of California, Berkeley http://www.eecs.berkeley.edu/~kubitron/cs252. Motivation: Who Cares About I/O?.

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CS 2 Main Memory and Backing Store

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Storage Systems

Storage Systems. Main Points. File systems Useful abstractions on top of physical devices Storage hardware characteristics Disks and flash memory File system usage patterns. File Systems. Abstraction on top of persistent storage Magnetic disk Flash memory (e.g., USB thumb drive)

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CpE 442 I/O Systems

CpE 442 I/O Systems. Recap: Virtual Memory. Virtual Memory invented as another level of the hierarchy Controversial at the time: can SW automatically manage 64KB across many programs? DRAM growth removed the controversy

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Lecture 18 Mass Storage Devices: RAID, Data Library, MSS

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Pengenalan Komputer Dan Teknologi Informasi

Pengenalan Komputer Dan Teknologi Informasi. Secondary Storage. Peng ertian. Storage : tempat penyimpanan Secondary Storage Storage Media. Tujuan. Menyimpan data dan program : Permanen, tidak tergantung pada catu daya Backup, cadangan, keamanan Distribusi, memindahkan.

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Peralatan Penyimpan (Secondary Storage)

Peralatan Penyimpan (Secondary Storage). Peng ertian. Storage : tempat penyimpanan Secondary Storage Storage Media. Tujuan. Menyimpan data dan program : Permanen, tidak tergantung pada catu daya Backup, cadangan, keamanan Distribusi, memindahkan. Representasi Data.

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IKI20210 Pengantar Organisasi Komputer Kuliah No. 21: Peripheral

IKI20210 Pengantar Organisasi Komputer Kuliah No. 21: Peripheral. Sumber : 1. Hamacher. Computer Organization , ed-4. 2. Materi kuliah CS152, th. 1997, UCB 3. Materi kuliah CS61C, th. 2000, UCB. 29 Nopember 2002 Bobby Nazief (nazief@cs.ui.ac.id) Johny Moningka (moningka@cs.ui.ac.id)

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Paul N. Edwards | SciencesPo, Paris (2012-13)

The history of infrastructures and the future of cyberinfrastructure in the Earth system sciences . Paul N. Edwards | SciencesPo, Paris (2012-13) School of Information and Dept. of History, University of Michigan .

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Chapter 5

Chapter 5. Computing Components. Computer Components. Consider the following ad:. Sizes in Perspective. Admiral Grace Murray Hopper A coil of wire nearly 1,000 feet long represents the distance traveled by an electron in the space of a microsecond. A 1 foot (30+ cm) piece of wire

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The History of Computers

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Input/Output (I/O) Devices

Input/Output (I/O) Devices. I/O is the eyes, ears, nose, mouth, hands, legs, etc. of the computer system. Imagine a computer without I/O. The Impact of I/O on Performance.

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29 November

29 November. 4 to go! Questions? Interrupts and I/O devices. Interrupts. How does the CPU manage SLOW I/O devices? Programmed I/O Interrupt Driven I/O. Polling. Advantages Simple No surprises Processor in full control Disadvantages Polling can waste lots of time.

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Storing And Retrieving Information

Storing And Retrieving Information. Mass Storage and Files. Programs and information (text, image, audio, video) are stored: Magnetic Magnetic Tape Magnetic Disk USB Optical DVD CD-ROM CD-R CD-RW. Other USB FLASH MO Solid State Drives. Computer Files. Hard Disks.

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Battery

Battery. BIOS. CPU (Central Processing Unit). Brain of the computer Executes millions of instructions per second Built using millions of transistors Needs a heat sink and a cooling method. Memory. Types: Volatile and Non-Volatile RAM : Random access memory ROM : Read only memory

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