'File allocation table' diaporamas de présentation

File Management

File Management. File: Unit of related information (uniquely) named and accessed by users Smallest unit of user storage OS maps file to physical secondary storage device Typically nonvolatile disk Can be text or binary, free form or formatted Can be organized as bits/bytes/lines or records

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Chapter 5

Chapter 5. Introduction to Hard Drives. Managing and Maintaining Your PC. Chapter 5A - Introduction to Hard Drives. MENU. Disk Organization. FAT, DEBUG, VFAT, root dir. Using DOS to manage drives. Using Windows 3.X to manage drives. Using Windows 95 to manage drives.

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CHAPTER 12: FILE SYSTEM IMPLEMENTATION

CHAPTER 12: FILE SYSTEM IMPLEMENTATION. File System Structure File System Implementation Directory Implementation Allocation Methods Free-Space Management Efficiency and Performance Recovery Log-Structured File Systems NFS. FILE-SYSTEM STRUCTURE.

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Interface Design Secondary Storage

Interface Design Secondary Storage. Omid Fatemi. Outline. PC disk drives. 1 st were diskette Then hard drives Then removable drives. Diskette Drives for a PC. Magnetic One or more circular disks that are coated with material that responds to magnetic fields

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Computer Forensics

Computer Forensics. Hard Drive Format. Hard Drive Partitioning. Boot process starts in ROM. Eventually, loads master boot record from booting device. MBR located at well-known location. Hard Drive Partitioning (Windows Only). MBR located always in the first sector of booting device.

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Disk Drives

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Chapter 1 Operating System Fundamentals

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Programming Microcontroller Serial Peripheral Interface (SPI), Secured Data (SD) Memory Card

Programming Microcontroller Serial Peripheral Interface (SPI), Secured Data (SD) Memory Card and File System (FS). SPI is serial high-speed bus system Display, SD cards , AD- & DA converters SPI is always used in a master-slave mode Master is responsible for the clock generation

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Digital Forensics

Module 11 CS 996. Digital Forensics. Outline of Module #11. Overview of Windows file systems Overview of ProDiscover Overview of UNIX file systems (Kulesh) ProDiscover workshop (remaining time). Reminder. InfraGard Chapter meeting on Counterintelligence Bear Stearns, 383 Madison Avenue

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Disk Allocation

Disk Allocation. CS 537 - Introduction to Operating Systems. Free Space. Need to keep track of which blocks on a disk are free Disk space is allocated by sectors 512 bytes typically The list of free blocks is also stored on disk. Bit Vector.

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Allocation Methods - Contiguous

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COS 318: Operating Systems File Layout and Directories

COS 318: Operating Systems File Layout and Directories. Topics. File system structure Disk allocation and i-nodes Directory and link implementations Physical layout for performance. File System Components. Naming File and directory naming Local and remote operations File access

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Writing Boot Loader with GAS in AT&T X86 Assembly

Writing Boot Loader with GAS in AT&T X86 Assembly. Dennis Chen. Outline. Introduction Conceptual Flow Prerequisites Implementation Debugging Techniques Demo. Introduction. Scope Load file from floppy image of FAT12 format Execute in real mode No 32-bit addressing

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The FAT File System

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File Management

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Accessing Files in C

Accessing Files in C. CS-2303 System Programming Concepts (Slides include materials from The C Programming Language , 2 nd edition, by Kernighan and Ritchie and from C: How to Program , 5 th and 6 th editions, by Deitel and Deitel). Two Kinds of File Access. Stream

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File Systems

File Systems. comparison of FAT, NTFS, and Linux. Terms. Cluster smallest amount of space that can be allocated to hold a file big cluster sizes lead to wasted space, while small cluster sizes overburden the directory system cluster sizes range from 1 sector (.5K) to 128 sectors (64K)

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The Hard Drive

The Hard Drive.

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