1 / 19

Floppy Disk Drive

Floppy Disk Drive. Rear view of floppy disk drive. Front view 3.5-inch floppy disk drive. Data cable. Power cable. 3.5-inch floppy disk. How Floppy Disk Drives Work. Read/write heads. 360 RPM. Connectors for a Typical Floppy Disk Drive. Disk drive. Power connection. Data connection.

adara
Download Presentation

Floppy Disk Drive

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Floppy Disk Drive Rear view of floppy disk drive Front view 3.5-inch floppy disk drive Data cable Power cable 3.5-inch floppy disk

  2. How Floppy Disk Drives Work Read/write heads 360 RPM

  3. Connectors for a Typical Floppy Disk Drive Disk drive Power connection Data connection 34-pin ribbon cable

  4. Optical Drives An external DVD drive A CD-R disc An internal CD-ROM drive

  5. Connectors for a Typical CD-ROM Drive CD-ROM drive Audio out Jumpers 40-pin connectors Molex power connector

  6. Common Problems with Optical Drives • Misaligned case • Tray out of balance • Drive mechanism won’t pull disc or tray in • CD drive won’t release the CD • Disconnected wires • Driver problems • Overheating • Software • Default audio device not set to system’s audio device

  7. Cartridge Drives Rear view of SCSI external Zip drive External Jaz cartridge drive with cartridge inserted Zip cartridge

  8. How Removable Cartridge Drives Work Hub 3000 RPM Read/write heads

  9. Syquest Drives

  10. Zip Drives • Slightly larger and twice as thick as a regular 3.5-inch disk. • The Zip drive can only read Zip disks. • Along with the original 100 MB Zip disk, currently there are 250 MB and 750 MB versions. • Iomega’s Zip drives can be used in both PCs and Macs. • Connection options now include external USB, FireWire, parallel, and SCSI; as well as internal ATAPI.

  11. Jaz Drives • Comes in 1 GB and 2GB versions. • The 2 GB drive can also read 1 GB cartridges. • Considered a legacy drive as it is no longer manufactured. • Currently the Iomega corporation only supports the 2 GB internal SCSI and external Ultra SCSI models. • Can be used in both PCs and Macs.

  12. SuperDisk Drives • Uses super-high-density floppy disks formatted in a servo pattern with 2,490 tracks. • 120 MB capacity per disk. • Can also read regular 1.44 MB floppy disks. • Available with parallel port, SCSI, USB, internal, and PCMCIA connections.

  13. Backup Considerations • What backup media will you use? • Does the system give you the performance and reliability you need? • Is the system flexible and easy to use? • In the event of a disaster, will the recovery be complete? • How fast can the system be up and running again?

  14. Tape Drive

  15. How Tape Drives Work 1.The computer reads the file system table on the hard drive, locates the files that you want to back up, and begins reading file data into RAM. 2. Data is then dumped from RAM to the tape drive controller buffer as memory fills. 3. The controller sends commands to the drive to start spooling the tape. 4. The capstan in the center of the supply reel turns the rollers in the cartridge. The belt around the tape and the rollers provide resistance and keep the tape taught and tight to the drive heads. 5. Data is sent from the controller to the read/write heads. 6. The tape is composed of parallel tracks. Data is written from the center out toward the edge on each pass. Holes in the end of the tape signal when the direction of the tape needs to be reversed. When it gets to the end, it reverses and moves out one track.

  16. Day-ending tape: 4 media sets for each day, Monday through Friday, rotated every week. Week-ending tape: 4 media sets for each Friday of the month, rotated every month. Month-ending tape: 12 media sets for each month, rotated every year. The Grandfather Backup Method

  17. The Tower of Hanoi Backup Method Day Media Set

  18. 100% 100% 100% 50% 50% 50% Relative Time to Back Up Data Amount of data 1 2 3 4 5 Full Backup Amount of data Amount of data 1 2 3 4 5 1 2 3 4 5 Differential Incremental

  19. Common Problems with Internal Removable Media Devices • If the computer case is not properly aligned with the chassis, the opening for the internal drive might be difficult to access. • Because there are large openings in the case for these devices, it is common for them to gather large amounts of dust, so be sure to keep them clean. • Be sure to properly store the media so it is not dirty or damaged. Using dirty or damaged media can damage the drive.

More Related