Floppy disk


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  • Storage capacities range from 360 KB to 1.44 MB Write-protect notch or window to prevent inadvertent erasure or write-over Density refers to how tightly the bits can be packed next to one another A shutter on the disk slides to the side to expose the recording surface
  • Zip disks – usually manufactured by Iomega; 100 to 250 MB worth of storage; requires own drive Super disks – usually manufactured by Imation; 120 MB capacity; popular with notebooks; use std floppy drive HiDF disks – usually manufactured by Sony Corp; 200 MB capacity Biggest advantages: can use HiDF disk in floppy drive Zip disks – 100 MB, 250 MB or 750 MB HiFD disks - 200MB or 720MB SuperDisks – 120 MB or 240 MB
  • Floppy disk

    1. 1.  The floppy disk drive was invented by AlanShugart in 1967. The first floppy drives used an 8 inch diskwhich evolved into the 5.25-inch disk thatwas used 1981 The 5.25-inch disks held 360 kilobytes
    2. 2.  The floppy disk is like a cassette tape It has a thin plastic base and a materialcoated with iron oxide The iron oxide is a ferromagnetic materialthat if it is exposed to a magnetic field it ispermanently be magnetized by the field It records information instantly, be erasedand reused many times and is inexpensiveand easy to use
    3. 3. 8-4
    4. 4. 8-5 High capacity Known as a floppy-disk cartridge Require special disk drives Three well known types Zip disks (Iomega)100MB, 250MB, 750MB HiFD disks (Sony)200MB, 720MB, read and store data on 1.44MB disk SuperDisks (Imation)240MB, 120MB
    5. 5. 8-6Zip disks (Iomega)SuperDisks (Imation)HiFD disks (Sony)
    6. 6.  Since technology has evolved floppy disksdrives are no longer being installed incomputers Many people still prefer floppy disks and theyare able to use it by attaching a USB floppydrive The drive can be attached to any computer The drive will cost you about $20
    7. 7. 1. Remove second slide panel from case.2. Remove the face plate and insert drive intofloppy bay.3. Screw in the floppy drive.4. Locate floppy disc drive cable.5. Hook it up to the motherboard.6. Adding power.
    8. 8.  Since technology has evolved floppy diskshave been hard to find It has been replaced by USB sticks which aremore convenient and more durable USB sticks will cost about $10-$35 dependingon the storage amount
    9. 9. 1. What year was the first 5.25-inch floppy diskused?2. What is no longer being installed in computers?3. What is the name of the drive that can beattached to any computer?4. What have floppy disks been replaced with?5. Give at least one type of floppy disc anddescribe6. Summarize the proper installation procedureon installing the floppy disk drive.(5 pts.)