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  • #16
    Originally posted by Marshmallowman
    MRAM has been on the horizon for 20 years

    But yeah solid state storage is "almost" here
    MRAM was the very first RAM well over 50 years ago, even if it wasn't called MRAM Remember the matrices of remanent ferrite beads with three wires through them, X and Y to identify the bit and a diagonal one for the signal? I used them in a digital system c. 1955. They cost a fortune, because the wires could be threaded only by hand. The one I used was 5 kbits on a 50 x 100 matrix. If I remember correctly, it cost my company about 30 times my monthly salary as a graduate engineer It also required a massive array of 12AT7 double triode valves (vacuum tubes), consuming kW, to drive the bugger.

    Nothing new under the sun!
    Brian (the devil incarnate)

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    • #17
      Originally posted by Brian Ellis
      MRAM was the very first RAM well over 50 years ago, even if it wasn't called MRAM Remember the matrices of remanent ferrite beads with three wires through them, X and Y to identify the bit and a diagonal one for the signal? I used them in a digital system c. 1955. They cost a fortune, because the wires could be threaded only by hand. The one I used was 5 kbits on a 50 x 100 matrix. If I remember correctly, it cost my company about 30 times my monthly salary as a graduate engineer It also required a massive array of 12AT7 double triode valves (vacuum tubes), consuming kW, to drive the bugger.

      Nothing new under the sun!
      Don't forget "Bubble Memory"

      - Steve

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      • #18
        Originally posted by Brian Ellis
        MRAM was the very first RAM well over 50 years ago, even if it wasn't called MRAM Remember the matrices of remanent ferrite beads with three wires through them, X and Y to identify the bit and a diagonal one for the signal?
        Well ferrite core memory is not really "solid state" but, yeah I concede magnetic memory has been around for a lot longer than 20 years.

        I remember looking at some ferrite core stuff through a microscope at uni, who was the poor bas***d who had to thread all those wires through the cores

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        • #19
          Originally posted by Marshmallowman
          Well ferrite core memory is not really "solid state" but, yeah I concede magnetic memory has been around for a lot longer than 20 years.

          I remember looking at some ferrite core stuff through a microscope at uni, who was the poor bas***d who had to thread all those wires through the cores
          14-18 year-old Asian girls!
          Brian (the devil incarnate)

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