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Floppy disks generally had the following makeup:
- A thin, plastic disk that went practically all the way to the edge of whatever casing held the disk.
- A center hole made of firmer material than the disk itself that was used to move the disk in a circle as data was written to and read. Earlier designs were plastic, while later designs were metal.
- A thin coating of iron oxide on the inner plastic disk, on one or both sides (single density or double density), which "permanently" holds a magnetic charge if a strong magnet is placed near it.
- A rigid plastic outer shell to protect the flexible inner plastic disk (the reason they were called "floppy disks").
- On later models, there was a spring loaded metal sheath over the disk's main opening, which helped prevent dust buildup.
- Also on later models, a cotton-like substance was included in the disk's interior on both sides to help remove dust as the disk was spun.
- A small plastic tab (a sliding switch) was available on some floppies; when set to a particular position, the disk's drive controller would refuse to write data to the disk, making it "read only."
So, basically, a few bits of metal, a few bits of plastic, coated with some more metal, and a bit of cotton for good measure.
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What do you use floppy disk drives for?
For putting a floppy disc in. Floppy discs were used a lot in the 1970's as CD's were not invented until the 1980's
What is a floppy drive on a computer?
A Floppy Drive is where you can insert Floppy Disk in order to read and write data to them. They are seldomed used anymore, as optical discs are more mainstream.
When were floppy drives first invented?
The floppy disc drive was invented at IBM in 1967. It used 8" floppy discs. The first floppy disc drive in an IBM personal computer appeared in 1981. By this time the original 8" floppy disc had been replace by a 5.25" disc.
What is a 3.5?
This depends on the context. Most computers used to use 3.5" floppy discs - it might mean one of those.
What are are thin circular discs made out of polycarbonate topped with layers of materials and coatings used to store data and protect the disc?
Optical Discs
Are thin circular discs made out of polycarbonate topped with layers of materials and coatings used to store data and protect the disc?
Optical Discs
The floppy disk can be used to store over 5 megabytes of data?
A standard floppy disk can hold a maximum of 1.44MB. This is comprised of 720kb of data on both sides of the platter. Some floppy disk drives can read disks of upto 2.88MB in capacity.
Who created the floppy disc?
IBM, it was designed to boot load microcode (µIPL in IBM terminology) for their System/370 computers introduced in 1971. The original floppy discs used by IBM were 8 inch diameter and had a capacity of only 80,000 bytes. The IBM engineer that designed the disc drive that the System/370 used to read microcode from these discs was Alan Shugart. He eventually left IBM to start his own disc drive company.
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Dental materials are examples of materials that are used to make impressions.
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