Mass storage devices ppt Find important definitions, questions, notes, meanings, examples, exercises and tests below for Mass To describe the physical structure of secondary storage devices and its effects on the uses of the devices To explain the performance characteristics of mass-storage devices To evaluate disk scheduling algorithms To discuss operating-system services provided for mass storage, including RAID Punch cards, Hollerith cards, and other relatively similar manual storage medium are examples of this Mass Storage Media these days. It describes the physical structure of disks and tapes and how they are accessed. 3 Silberschatz, Galvin and Gagne ©2009 Operating System Concepts with Java – 8th Edition Objectives Describe the physical structure of secondary and tertiary storage devices and the resulting effects on the uses of the devices Explain the performance characteristics of mass- storage devices Discuss operating-system services provided for Sep 20, 2012 · Optical storage device- DVD DVD-ROM : A new type of read only compact disc that can hold a minimum of 4. 191 views • 17 slides Mar 7, 2017 · 3. There is also an external hard disk which connected to the computer system by a USB cable or other means. Storage Devices. Overview of Mass Storage Structure (Cont. Download now. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Mass Dec 27, 2023 · Disk Attachment Host-attached storage accessed through I/O ports talking to I/O busses SCSI itself is a bus, up to 16 devices on one cable, SCSI initiator requests operation and SCSI targets perform tasks Each target can have up to 8 logical units (disks attached to device controller) FC is high-speed serial architecture Can be switched fabric To describe the physical structure of secondary storage devices and its effects on the uses of the devices To explain the performance characteristics of mass-storage devices To evaluate disk scheduling algorithms To discuss operating-system services provided for mass storage, including RAID Nov 26, 2013 · 5. Hard Disk. Aug 7, 2014 · Introduction to Storage Devices. 1 of 13. Chapter 14: Mass -Storage Systems n Disk Structure n Disk Scheduling n Disk Management n Swap-Space Management n RAID Structure n Disk Attachment n Stable-Storage Implementation n Tertiary Storage Devices n Operating System Issues n Performance Issues Operating System Concepts 13. Jan 23, 2016 · 6. Can store billions of characters of data. In the simple word Memory is a chip which is used to store data and instruction for the future use. Stated in forms of bytes: View Small mass storage devices PowerPoint PPT Presentations on SlideServe. 05k views • 85 slides Mar 7, 2017 · This document provides an overview of mass storage structures and operating system services for mass storage. OVERVIEW OF MASS STORAGE STRUCTURE Magnetic disks provide bulk of secondary storage of modern computers Drives rotate at 60 to 250 times per second Transfer rate is rate at which data flow between drive and computer Positioning time (random-access time) is time to move disk arm to desired cylinder (seek time) and time for desired sector to rotate under the disk head (rotational latency Oct 29, 2010 · 7. SSDs connect to a computer like a hard drive. Chapter 10: Mass-Storage Systems. It defines mass storage devices as storage systems with capacities of trillions of bytes that use multiple storage media units like disks, tapes, or CD-ROMs as a single storage device. Disks connect to computers via I/O buses and controllers. Objectives physical structure of secondary and tertiary storage devices performance characteristics of mass-storage devices. Title: Multimedia Devices and Mass Storage 1 Chapter 9. How multimedia works on a PC ; About multimedia devices such as sound cards, digital cameras, and MP3 players ; About optical storage technologies such as CD and DVD ; How certain hardware devices are used for backups and fault tolerance Title: Multimedia Devices and Mass Storage 1 Chapter 9. Hard Disk 7 Hard Disks are the main internal backing store usually found inside computers. Advantages : Very large storage capacity DVD players can read CDs DVDs are now mass produced so they are relatively cheap Information about Mass Storage Systems - PPT (Powerpoint Presentation), Operating System covers topics like and Mass Storage Systems - PPT (Powerpoint Presentation), Operating System Example, for Computer Science Engineering (CSE) 2025 Exam. Collection of 100+ Small mass storage devices slideshows. Read more. Overview of Mass Storage Structure. Today, mass storage may include several kinds of hard disks or solid-state storage devices, as well as tape drives and other physical data storage devices. Magnetic sequential access memory is typically used for secondary storage in general-purpose computers due to their higher density at lower cost compared to RAM, as well as resistance to wear and non-volatility. g. ) Magnetic tape Was early secondary-storage medium Relatively permanent and holds large quantities of data Access time slow Random access ~1000 times slower than disk Mainly used for backup, storage of infrequently-used data, transfer medium between systems Kept in spool and wound or rewound past read-write head Once data under head, transfer rates Punch cards, Hollerith cards, and other relatively similar manual storage medium are examples of this Mass Storage Media these days. How multimedia works on a PC ; About multimedia devices such as sound cards, digital cameras, and MP3 players ; About optical storage technologies such as CD and DVD ; How certain hardware devices are used for backups and fault Apr 26, 2020 · 7. e. It is a non-volatile storage device. . Multimedia Devices and Mass Storage ; 2 You Will Learn. Nov 20, 2012 · This document discusses mass storage devices. Introduction to Memory In computing, memory refers to the physical devices used to store programs (sequences of instructions) or data (e. It discusses primary storage devices like ROM and RAM that provide temporary data storage and secondary storage devices like optical discs (CDs, DVDs, Blu-ray discs) and magnetic storage (hard disks, pen drives, memory cards) that provide permanent and portable storage. It supports reading and writing data and maintains stored data in a permanent state even without power. It provides Mar 21, 2011 · The document summarizes different types of storage devices used in computers. Magnetic disks provide bulk of secondary storage of modern computers Drives rotate at 60 to 250 times per second Transfer rate is rate at which data flow between drive and computer. It discusses disk structure, disk scheduling algorithms, swap space management, RAID structures, and stable storage implementation. DVD-RW : The data on a DVD-RW disc can be erased and recorded over numerous times without damaging the medium. Data is stored on a spinning disk with a magnetic surface known as magnetic media. Jul 18, 2022 · This document provides an overview of chapter 10 from the textbook "Operating System Concepts - 9th Edition" which covers mass storage systems. The concepts of data backup and data recovery are Jan 4, 2020 · Chapter 10: Mass-Storage Systems. Medium/media Location where data is stored. Describe the physical structure of secondary and tertiary storage devices and the resulting effects on the uses of the devices Explain the performance characteristics of mass-storage devices. Usually mounted inside the computer’s system unit. 7GB. Moving-head Disk Mechanism. It describes disk technologies like magnetic disks, solid state disks and magnetic tapes. 1. program state information) on a temporary or permanent basis for use in a computer or other digital electronic device. It can store a large amount of data. DRAM frequently used as mass-storage device Not technically secondary storage because volatile, but can have file systems, be used like very fast secondary storage RAM drives (with many names, including RAM disks) present as raw block devices, commonly file system formatted Computers have buffering, caching via RAM, so why RAM drives? To describe the physical structure of secondary storage devices and its effects on the uses of the devices To explain the performance characteristics of mass-storage devices To evaluate disk scheduling algorithms To discuss operating-system services provided for mass storage, including RAID Dec 31, 2016 · this presentation is for storage devices and the basic concept of storage devices including hard disk, floppy disk etc. Disks are organized into logical blocks that are mapped to physical sectors. An SSD is a type of mass storage device similar to hard disk drive. Mass-Storage Systems. INTERNAL MEMORY 3. Aug 28, 2023 · 12. Used to keep data when the power to the computer is turned off. 191 views • 17 slides Sep 20, 2012 · Optical storage device- DVD DVD-ROM : A new type of read only compact disc that can hold a minimum of 4. The term primary memory is used for the information in physical systems which are fast (i. 2 Silberschatz, Galvin and Gagne 2002 Disk Structure May 8, 2019 · In computing memory refers to the physical devices used to store programs (sequences of instructions) or data (e. Apr 20, 2009 · Chapter 12 discusses mass storage systems and their role in operating systems. Jan 7, 2020 · Chapter 12: Mass-Storage Systems. Read less. The chapter discusses disk structure, disk scheduling algorithms like FCFS, SSTF, SCAN and C-SCAN. Objectives. 2-Sequential access memory (SAM) Sequential access memory (SAM) is a class of data storage devices that read stored data in a sequence. RAM), as a distinction from secondary Feb 1, 2018 · Solid state drive Stands for" solid state drive“. uhgp nhovfkw abo lcnt gayh naovq fqpue nvtwavq uzycj fybq