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Floppy disks store digital data which can be read and written when the disk is inserted into a floppy disk drive (FDD) connected to or inside a computer or other device. [ 2 ] The first floppy disks, invented and made by IBM in 1971, [ 3 ] had a disk diameter of 8 inches (203.2 mm). [ 4 ]
The 3 + 1 ⁄ 2-inch disks had, by way of their rigid case's slide-in-place metal cover, the significant advantage of being much better protected against unintended physical contact with the disk surface than 5 + 1 ⁄ 4-inch disks when the disk was handled outside the disk drive. When the disk was inserted, a part inside the drive moved the ...
A Maxell-branded 3-inch Compact Floppy Disk. The floppy disk is a data storage and transfer medium that was ubiquitous from the mid-1970s well into the 2000s. [1] Besides the 3½-inch and 5¼-inch formats used in IBM PC compatible systems, or the 8-inch format that preceded them, many proprietary floppy disk formats were developed, either using a different disk design or special layout and ...
The best-known floppy disk drive for the C64, the 1541 is a single-sided 170-kilobyte drive for 5¼" disks. The 1541 directly followed the Commodore 1540 (meant for the VIC-20 ). The disk drive uses group coded recording (GCR) and contains a MOS Technology 6502 microprocessor, doubling as a disk controller and on-board disk operating system ...
Paper ring (a polyester sheet reducing friction against the disk media as it rotates within the housing). Magnetic disk (the magnetic coated plastic disk). Disk sector (schematic representation of one sector of data on the disk; tracks and sectors are not visible on actual disks). Write protection tab (unlabeled, in upper left).
Single head drive, but double-sided floppy discs (total of 360 kB per floppy) Amstrad PCW8512/9512: 3 inch Double 2 80 9 512 720 kB 300 MFM 720 kB mode uses both sides - ensure disc inserted correct way up. Apple II: 5 1 ⁄ 4 inch Double 1 35 13 256 soft 113.75 kB 300 GCR [NB 2] 1 16 140 kB 3 1 ⁄ 2 inch Double 1 80 Variable (8-12) 512 400 kB
STORY: (Tim Persky, Floppy disk seller)"If you think this is old, take a look at this. This is a floppy disk from the 1970s."This man is believed to be the world's last known bulk supplier of ...
Macintosh SE FDHD: Includes the new SuperDrive, a floppy disk drive that can handle 1.4 MB High Density (HD) floppy disks. FDHD is an initialism for "Floppy Disk High Density"; later some Macintosh SE FDHDs were labeled Macintosh SE SuperDrive, to conform to Apple's marketing change with respect to their new drive. High-density floppies would ...