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    Essentials – Floppy Disk

    InceptionFirst introduced by IBM in 1971
    Initial Storage Capacity8-inch format had 80 Kilobytes of storage
    Typical SizesOriginally 8-inches; later versions were 5.25-inches and 3.5-inches
    UsageUsed for data storage and transfer, particularly in early personal computers
    Read/Write MethodMagnetic storage: data encoded on a circular plastic film
    AccessibilitySequential access to data (not random like hard drives)
    Notable FeaturePortable and relatively low cost
    DiscontinuationLargely phased out in favor of USB flash drives and CDs in the early 21st century