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Alternatives to ROM. Magnetic vs. Electric

Discussion in 'Electronic Basics' started by Radium, May 12, 2007.

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  1. Radium

    Radium Guest

    What are the advantages of magnetics vs. electrics?
    It's a matter of personal preference.
    I don't use zip, unless I really need to. So far, I've never had to.

    Winzip is a pain in the @$$.
    Is the ROM built into the keyboard?


    Interesting. In '90, I had a green monochrome Corona PC. Its keyboard
    did not connect to the PC via pins but rather through a cord
    resembling a telephone cord. The plugs on both ends resembled that
    used for telephones.
    What are the alternatives to ROM?
    I am aware that there is nothing objectively wrong with ROM. However,
    as a matter of personal preference, I would like other alternatives.
    It's like preferring garlic over onions [or visa versa].
     
  2. MooseFET

    MooseFET Guest

    [.... much snipped ....]
    There are no electro-optical nonlinear effects that you could use to
    do the same trick. It is a very new area of physics.

    [... snip ...]
    No its more like preferring garlic over gravel. All the other ways of
    doing are either ROMs in funny cloths like a CPLD or buckets of
    decrete logic.
     
  3. Radium

    Radium Guest

    I prefer the discrete logic over the ROM.
     
  4. Bob Myers

    Bob Myers Guest

    But for no apparent reason, right?

    Bob M.
     
  5. Radium

    Radium Guest

    I like things to be lively. Discrete logic is far more effervescent
    than ROM.
     
  6. MooseFET

    MooseFET Guest


    But it isn't more effervescent. In order to make disscrete logic
    perform a given operation, the gates must be wired in a specific way.
    This wiring is where the information is stored when you use descrete
    logic. The wires remain the same so the information is always there.

    If you look at the internal design of a PROM, you will find a large
    amount of logic and an array of some sort of electronic switches. Way
    back in the past the switches were little fuses. The process of
    programming a PROM was to burn the unwanted fuses to beak the unwanted
    connections.
     
  7. Radium is a troll. He gets his jollies from seeing how many people he can
    get to take him seriously. This isn't as bad as the usual way-off-topic
    insult-slinging troll, but he still isn't worth the bandwidth he wastes.
     
  8. MooseFET

    MooseFET Guest


    I see no evidence that he really is a troll. Merely being wrong isn't
    trolling. Do you have some previous experience with him?
     
  9. kony

    kony Guest


    In many ways it's worse than the insult-slinging type
    because Radium sucks innocent bystanders into conversations,
    people who don't even realize Radium has no purpose, that
    some discussions are just repeats of same thing Radium
    posted previous months or last year.
     
  10. Radium

    Radium Guest

    This is what I would like. Hardwired logic as opposed to software
    programming. In hardware logic, the information "stored" and
    "programming" is determined by the way the chip's circuits are
    mechanically built. When an electric current is passed through a
    certain of those circuits, specific signals [of instructions and
    information] are generated. Depending on an individual's view, this
    may or may not be a type of "ROM". Even if it is, I still like it
    because this "storage" is really determined by the way the circuits
    are physically-designed; hence the instructions are freshly-generated
    each time electricity is passed through the chip.
     
  11. Bob Myers

    Bob Myers Guest

    Which means...what, exactly?

    Bob M.
     
  12. krw

    krw Guest

    What a *horrible* thing, to be sucked into a conversation. Maybe
    you'd rather join the kook invasion?
    Sure. Noone is forcing you to read or respond, though sometimes
    something interesting pops out of the strangest threads.
     
  13. If you want lively, you can't beat Monkeys flipping switches. That
    would make it a biological processor.
    Logic density kind of sucks though, maybe one Monkey per square foot,
    but you can stack them. You'd then have a 3D biological processor -
    cool.

    Worked a treat for the early space program.

    Dave.
     
  14. It IS ROM. You give a certain input to it and you will get a certain
    output, every time, just like ROM.
    So now the no-ROM issue out of the way? Great, now maybe somebody can
    show you the light about magnetic storage and other stuff :ppPp
     
  15. Radium

    Radium Guest

    Yes. As long the ROM-signals are determined by the way the chip's
    circuits are mechanically built. When an electric current is passed
    through a certain of those circuits, specific signals [of instructions
    and information] should be generated.
    Nope.

    The only thing I'd like to use magnetic signals for is described in
    here:

    http://groups.google.com/group/Crea...egen1+magnetic&rnum=15&hl=en#d57c8a76f8118694

    Quotes from the above link :

    "I would like to make some replicable magnetic electronic nanobots
    that will search for sample playback MIDI synths, softsynths,
    emulations, and soundfonts in any part of the world and attach to the
    digital chips of sample playback MIDI synths, softsynths, emulations,
    and soundfonts. These nanobots should contain magnetic receivers that
    will extract any random environmental magnetic audio signals from 2
    kHz to 50 kHz [excluding spikes, square-waves, white noise, brown
    noise, pink noise and bass sounds]. The nanobots then amplify those
    signals to the point where they would significantly interfere with --
    and cause inductive crosstalk in -- the audio signals in the digital
    electronic chips of the sample playback MIDI synths, softsynths,
    emulations, and soundfonts. This will cause sample playback MIDI
    synths, softsynths, emulations, and soundfonts to be full of annoying
    -- and perhaps even frightening -- auditory disruptions from
    environmental magnetic interference**."

    "**Note: The magnetic signals that interfere with those digital chips
    should be purely-analog. I just love it when purely-analog magnetic
    signals cause significant disruptions in purely-digital chip-based
    parts of electronic devices that I don't like. Sample playback MIDI
    synths, softsynths, emulations, and soundfonts are an example of
    digital electronic devices that I don't like so I want to victimize
    them in this manner -- i.e. via magnetic interferences."
     
  16. kony

    kony Guest


    Usually there is some purpose w/other posts, it's not just a
    black hole of wasted time. Radium can tend to play on
    other people's generosity in that they don't yet realize
    there really ISN'T any purpose at all.


    Yes, sometimes regardless of the senselessness, something
    interesting pops out. Now pause and ponder for a moment
    that given that number of participants and their time, used
    differently these resources might've produced something even
    more interesting.

    Basically you're just wrong though, if you lack interesting
    topics in your chosen forum, the answer is not to wait
    around for a troll, it's to find something that DOES
    interest you.
     
  17. SteveH

    SteveH Guest

    That would be bubble memory.
    ;-)
    SteveH
     
  18. krw

    krw Guest

    *YOU* are wasting your time. Radium isn't.
    You're the one who has made the CHOICE to waste your time. You can
    easily kill the entire thread.
    Every participant is in exactly the same position as you. They have
    all decided that it was wort their wasted time to respond. You have
    a problem with that?
    If I've responded, it obviously does interest me. Unless you are a
    complete idiot, you are no different.
     
  19. MooseFET

    MooseFET Guest

    That would be a "masked ROM", a fuse or anti-fuse PROM. In each of
    these there is a mechanical difference between a location that is a
    one and a zero.

    Stuff like the microcode in a processor is masked ROM. The micro
    inside your keyboard and video cards are likely also to be masked.

    Parts like Flash Proms only have electrical differences between ones
    and zeros. If you are making less than a million of anything, the
    Masked ROM is likely to be too costly of a way to go.
     
  20. I don't think CPUs (since the Intel Pentium FDIV debacle) use masked
    ROM. Or at least, not exclusively. Large portions of microcode
    are loaded by BIOS to permit relatively easy bugfixes. CPU mfrs
    provide a binary lump to BIOS writers. AFAICS, the microcode gets
    loaded each boot into something analogous to SRAM. (DRAM?).
    Or if modifiability is important. It is for CPUs, and probably also
    for GPUs.

    -- Robert
     
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