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- New Peripheral: CD ROM
- by Thomas Kardos
-
- A major development in computers in general is the advent of a new type
- of read only peripheral, the CD ROM. This is nothing more than a 3.5"
- Compact Disk, which has 550M bytes of space. The disk is digital, for
- it has all intelligence stored in zeroes and ones, like computer data.
- The disk is read by a laser which does not degrade the disk, since all
- data is burned in well under the surface of the plastic. Right now
- digital readers for CD's with music are under $200 and they reproduce
- music with total high fidelity and a dynamic range of over 90 decibels,
- impossible previously with records and tapes.
-
- If you wish to purchase an encyclopedia, say the Americana, one disk for
- $199 will do it. The "opus" actually takes up only 110M bytes while the
- rest of the disk is loaded with all conceivable cross indexes for you to
- find every mention of whatever you are looking for. The CD disk reader
- costs at the moment over $1000, but soon this price will come down.
-
- Videodisks and Computers:
- Marriage of Convenience or Shotgun Wedding
- by Thomas Kardos
-
- A major application, for industry and education, is the marriage of
- regular 12" video laser disks with computers, to control access and
- sequence. One laser disk can hold more than 70 Thousand slide or movie
- images. Where could you store this magnitude of visual media at home or
- work, and how would you access it without a computer? Interfaces have
- been selling since the summer of 1984 for under $100. See the summer
- 1984 issues of Popular Computing for details.
-
- Soon you will be able to have all your slides placed on a video disk and
- you will view them on a monitor. The resolution on monitor is
- outstanding. It beats the degradation of slides from fading away and
- being attacked by fungus. You can also copy from videodisk to
- videotape, with some image degradation, but still superior to using a
- video camera with the source slide. I have experimented with this new
- medium and its promises are exciting.
-
- Enter Bac-Man! Bacteria, Lasers Threaten Hard Disk
- by Thomas Kardos
-
- An interesting application, with many patents pending, is the erasable
- laser disk (Compact Disks 3.5" with 550M bytes) to be used in place of
- the hard disk. The days of the hard disk appear numbered. Probably
- hard disks will be around for barely a few more years and then we all
- will switch to either CD's read by lasers or BMB: Biological Memory
- Bubbles (bacteria which act like memory in place of other media.) Far
- out, what won't they think of next... Sources: Popular Computing,
- Popular Science (1984-1985).
-
- ...from ONKUG, Newsdiskette to Kaypro Users Groups, Volume 2, Number 2.