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Floppy Drives

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Floppy Drives

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    1. Chapter 7 Floppy Drives

    2. You Will Learn… How floppy drives work How to manage floppy drives using Windows Explorer How to exchange and support floppy drives

    3. How Floppy Drives Work How data is physically stored on a floppy disk How the OS logically views that data

    4. How Data Is Physically Stored on a Floppy Drive

    5. Floppy Drive Subsystem

    6. Formatting a Floppy Disk Process of marking tracks and sectors to prepare the disk to receive data Done using Windows Explorer shortcut menu or the Format command from command prompt

    7. Tracks and Sectors on a Floppy

    8. Inside a Floppy Disk Drive

    9. Read/Write Head

    10. How Data Is Logically Stored on a Floppy Disk Cluster Smallest unit of data on a disk used to hold a file or a portion of a file Describes how data is logically organized Also called file allocation unit

    11. Clusters

    12. Formatting Process for a Floppy Disk Creates tracks and sectors by writing: Tracks of F6s in hex Sector address mark to identify the beginning sector on a track Creates the boot record Creates two copies of the FAT Creates the root directory

    13. The Boot Record Information stored in the first sector on the disk about how the disk is organized Number of sectors Number of sectors per cluster Number of bits in each FAT entry

    14. The Boot Record

    15. The File Allocation Table (FAT) Lists location of files on the disk in a one-column table Lists how each cluster (FAT) is currently used

    16. The Root Directory Table Lists information about each file and subdirectory stored in it

    17. The Root Directory Table

    18. How an OS Reads a File

    19. Using Windows Explorer to Manage Floppy Disks and Hard Drives Ways to open Windows Explorer Click Start, Programs, Windows Explorer Right-click My Computer; select Explore Right-click Start; select Explore from the menu Open My Computer and, on the menu bar, click View, Explorer Bar, Folders

    20. My Computer View

    21. Shortcut Menu Options Access with a right-click on the item

    22. Shortcut Menu Options

    23. Shortcut Menu Options

    24. Create a New Folder Click on parent folder’s name Click File menu, Select New Select Folder from submenu

    25. Delete a Folder Right-click the folder Select Delete from shortcut menu

    26. File Attributes Right-click a file Select Properties from shortcut menu View or change attributes

    27. File Attributes

    28. Folder Properties Select folder, click Tools, Folder Options Click the View tab Change how and when files appear in the folder

    29. Exchanging and Supporting Floppy Drives Problems that can occur with a floppy drive and its support system How to replace the drive How to add an additional floppy drive to a computer system

    30. Replacing a Floppy Drive Check that computer and peripherals are working Turn off computer and remove the cover Unplug data cable and power cable from the old drive; unscrew and dismount the drive Slide new drive into the bay. Reconnect data cable and power cable Turn on computer, check setup, and test the drive

    31. Replacing a Floppy Drive

    32. Replacing a Floppy Drive

    33. Replacing a Floppy Drive

    34. Requirements for Adding a New Drive Empty bay Extra power cable (or “Y” splitter) Extra connection on floppy drive data cable

    35. When a Floppy Disk Drive Doesn’t Work Error messages in the 600 range occur when a floppy drive does not pass the POST test When troubleshooting, check: Physical condition of the disk Error messages CMOS settings Cables connected to the drive

    36. Common Error Messages Non-system disk or disk error. Replace and strike any key when ready. No operating system found Bad or missing COMMAND.COM Error in Config.sys line xx Himem.sys not loaded Missing or corrupt Himem.sys

    37. Common Error Messages Incorrect DOS version Invalid Drive Specification Not ready reading drive A:, Abort, Retry, Fail? General failure reading drive A:, Abort, Retry, Fail? Track 0 bad, disk not usable Write-protect error writing drive A:

    38. Chapter Summary Main uses of floppy drives For troubleshooting a failed boot Quick and easy way to transfer small files from one PC to another How data is stored on a floppy disk and how to manage that data How to install a floppy disk drive on a PC

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