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Imagineered Products and Services
Examples of Imagineered Products & Services
Updated on:
Monday, September 17, 2007 02:22 PM |
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Imagineered Products & Services: Examples of
Imagineered Products & Services
Introduction to Wind Energy -
Internet Business Ideas |
This section describes some products and service ideas that have either come from my imagination as long as 40 years ago or are
based on scientific research that hint at some new products. Some of the ideas listed have since become commercially available.
In addition to the ideas listed below, I also have some more detailed discussions. |
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COMPUTER DATA STORAGE DENSITY INFORMATION |
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| AUDIO CASSETTE TAPES |
- standard recording speed = 1 7/8 inches per second
- Recoding time = 30 minutes per side, tape length = 3,375 inches = 281 feet, 4 tracks
- 15KHz upper frequency limit, 16bits conversion at 35KHz sample rate = 560Kbs/sec
- 560Kbs/sec x 4 tracks x 1800 seconds = 4,032Mb or 504MBs total storage.
- Tape width = 0.125" Total recordable area = 422 square inches
- Bit density = 504MBs/422 square inches = 1.2MBs/ square inch, 186KBs/ sq cm
- Bit size = 300 micro inches = 8.2 micro meters
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| 3 1/2" 1.44M FLOPPY DISKS |
- Double sided, Outer track radius = 1.65" Inner track radius = 0.8"
- Recordable area each side = 6.54 square inches or 42.2 square cm
- At 720KBs per side, storage density = 110KBs per sq inch or 17KBs per square cm
- Bit size = 1065 micro inches = 27 micro meters
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| NEW 120MB "Super Disk" FLOPPY DISKS |
- Double sided, so 60MBs per side
- Same 6.54 square inch (42.2 sq cm) recording area as standard floppy
- Storage density = 9.17MBs per square inch, 1.42MBs per sq cm
- Bit size = 117 micro inches = 2.97 micro meters
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| HIGH DENSITY HARD DISKS |
- Reported bit density = 1GB/ sq inch = 8Gb/ sq inch
- Bit size = 11 micro inches = 0.28 micro meters
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| CD-ROM DISKS |
- Single sided. 4.70" diameter outer track radius = 2.30" Inner track radius 0.90"
- Recordable area = 14 square inches or 90.3 square cm
- 650MBs total storage on one side
- Storage density = 46MBs per square inch or 7.2MBs per square cm.
- Bit size = 52 micro inches = 1.3 micro meters
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| 4.6GBs DVD OPTICAL DISKS |
- Recording area = 14 square inches or 90.3 square cm (same as CD-ROM)
- 4.6GBs total storage per side.
- Storage density = 329MBs per square inch or 51MBs per square cm
- Bit size = 19.5 micro inches = 0.49 micro meters
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| FUTURE OPTICAL DISKS USING 220nM ULTRAVIOLET LASER LIGHT |
- Recording area = 14 square inches or 90.3 square cm (same as CD-ROM)
- Assuming 8 times the storage due to the shorter light wave length
- Storage capacity = 36GBs per side
- Bit size = 7 micro inches = 0.18 micro meters
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| QUERY |
| Why can't the plastic material used in the DVDs be stacked like a deck of cards? Perhaps a thinner material could be used. Then, a smaller 3 1/2" disk could be
used inside a thicker plastic cartridge holding perhaps 20 disks. The smaller disks would have about ½ the recordable area as a DVD. But, the information would be stored on both sides, so each
disk would store the same as a DVD. Then, such a cartridge could store about 100GBs of information now, pushed to perhaps 1,000GBs later as ultraviolet lasers became available. |
| Also, why can't a thin ribbon of the same material be used to make an optical tape recording system that would have a much larger recording area and therefore
would be able to store much more information? Perhaps the system would use a tape 1 inch wide by 140 inches long. Such a ribbon would have about 20 times the recording area as a DVD disk,
especially if information could be stored on both sides. If the tape length could be extended to as much as 1400 inches, then the storage capacity would increase by a factor of X200. Then, if such
a technology were push to the limit with ultraviolet lasers, it could store an unbelievable 7,000GBs. |
| Lastly, several years ago IBM demonstrated how multiple layers of optical information could be stored onto similar plastic materials as being used for DVD disks.
I think they were able to lay down about 8 layers. If such techniques could be perfected, then the storage capacity could be further increased. Perhaps there will come a day in my lifetime when
Terabyte disks will become the norm. |
| Also, note that magnetic storage is still quite dense, able to lay down magnetic bits only a little larger than possible with an ultraviolet laser. However, any
magnetic material would not be as robust as a plastic optical disk. The read/write heads must also hover very close the surface making hard disk removable materials impossible to produce.
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