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Type: Posts; User: lowen

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  1. Keyboard pads.

    Keyboard pads.
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    570

    As I recall, back in the day there was typically...

    As I recall, back in the day there was typically a 4 to 1 state of the art chip size ratio, DRAM to SRAM. So, when 16k1 DRAM was state of the art, so was 4k1 SRAM. This also translated to SRAM...
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    The SC5400 chassis can be either rack mounted or...

    The SC5400 chassis can be either rack mounted or deskside. Ours were originally set up as rack boxes, but are easily converted to deskside, which is a short and deep tower, essentially, as opposed...
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    Yeah, the airflow management in the SC5400...

    Yeah, the airflow management in the SC5400 chassis we have is pretty specific, with multiple large high flow fans and a wind tunnel over the RAM to keep it cool. There are some good photos of this...
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    The ones I have here are Intel S5000PSLSATAR...

    The ones I have here are Intel S5000PSLSATAR (https://ark.intel.com/content/www/us/en/ark/products/46546/intel-server-board-s5000pslsatar.html)

    We have some of these with midrange Quadro cards...
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    Server boards can be a fickle lot when it comes...

    Server boards can be a fickle lot when it comes to using a PCIe GPU card. I have some older Intel Serverboards, for instance, that have two of what physically look like 16 lane slots that are...
  7. Most Live USB Linux distributions, unless the...

    Most Live USB Linux distributions, unless the media has been created to have persistent storage, run the USB as if it were a CD/DVD and thus it is mounted read-only, with the actual root fs in a...
  8. Thread: Slow News Day

    by lowen
    Replies
    103
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    3,470

    Not likely, other than some programmer wrote the...

    Not likely, other than some programmer wrote the optimizer and thus the optimizer does exactly what it's told to do (whether that is what the programmer wanted or not is irrelevant!). Or, as the old...
  9. Thread: Slow News Day

    by lowen
    Replies
    103
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    3,470

    The compiler will do nothing more nor nothing...

    The compiler will do nothing more nor nothing less than what the person writing it programmed it to do. In this case, compiler/interpreter authors are programming in the current precedence rules,...
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    I've typically use Clonezilla for such things,...

    I've typically use Clonezilla for such things, but as old as that machine is..... if boot from cd works, you can try the tools on the ultimate boot cd https://www.ultimatebootcd.com

    If you need a...
  11. Thread: Slow News Day

    by lowen
    Replies
    103
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    3,470

    Well, I'm neither the oldest nor the youngest...

    Well, I'm neither the oldest nor the youngest here, but most of my math exposure was prior to computers becoming prevalent; it wasn't until I was a sophomore that we got more than just a couple of...
  12. Thread: Slow News Day

    by lowen
    Replies
    103
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    3,470

    And while we're at it we'll trisect the angle and...

    And while we're at it we'll trisect the angle and P=NP. :satisfie:
  13. Thread: Slow News Day

    by lowen
    Replies
    103
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    3,470

    The single set of () in the expression does...

    The single set of () in the expression does denote a grouping, which is why the expression evaluates the way it does. In order, and by hand:
    82(2+2)= () first....
    824= next, equal...
  14. Thread: Slow News Day

    by lowen
    Replies
    103
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    3,470

    Indeed, and agreed 100%.

    Indeed, and agreed 100%.
  15. Thread: Slow News Day

    by lowen
    Replies
    103
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    3,470

    Yep, exactly. Using the standard order of...

    Yep, exactly. Using the standard order of operators that currently exists, the answer to the original expression is 16. Creative use of parentheses can make it be evaluated in any order necessary.
  16. Thread: Slow News Day

    by lowen
    Replies
    103
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    3,470

    This is the crux of the amibiguity here; does...

    This is the crux of the amibiguity here; does multiplication take precedence over division; that is, is there an implied second set of () grouping the operands on the divisor side of the division? ...
  17. Thread: Slow News Day

    by lowen
    Replies
    103
    Views
    3,470

    The way I was taught, in prealgebra back in 1980,...

    The way I was taught, in prealgebra back in 1980, was that multiplication and division had equal precedence, and equal precedence operators are evaluated left to right. So, taking the expression and...
  18. Thread: Slow News Day

    by lowen
    Replies
    103
    Views
    3,470

    Wow. Algebraic operator precedence 101, with ()...

    Wow. Algebraic operator precedence 101, with () taking precedence above multiply and divide. This is middle school prealgebra material.
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    E5500 is essentially the same thing as E4500,...

    E5500 is essentially the same thing as E4500, just in the full-size rack. I have one of those here, along with an E6500 (16CPU). I have a large number of processor modules, processor/memory boards,...
  20. Plextor did a 12x SCSI CDROM, and Sun used a SCSI...

    Plextor did a 12x SCSI CDROM, and Sun used a SCSI DVD-ROM drive on some later workstations and servers.
  21. The SD Direct Access mode is documented in this...

    The SD Direct Access mode is documented in this PDF: https://hxc2001.com/download/floppy_drive_emulator/SDCard_HxC_Floppy_Emulator_Direct_Access_mode.pdf

    Hope that helps!

    Edit: sample source in...
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    I deal more with larger transformers, and I don't...

    I deal more with larger transformers, and I don't have my copy of the NEC in front of me, but for larger transformers at least it's allowed to run one at 125% of the continuous rating. That would be...
  23. Thread: NEC V20 and CP/M

    by lowen
    Replies
    48
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    3,771

    Well, the "canonical" MP/M system would have been...

    Well, the "canonical" MP/M system would have been the Altos Sun Series 8000, later called the ACS 8000. With MP/M being available in 1979, and TI's first 4164's in late 1978, machines like the ACS...
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    Hmm, autoincorrect bit me again. My O2 is a 225...

    Hmm, autoincorrect bit me again. My O2 is a 225 MHz; the I2 is a 180.

    IP28 does have 12 slots for RAM, but can only address 1GB in those slots. Older RAM modules in the higher densities threw...
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    I have a purple Indigo2 myself, but not quite...

    I have a purple Indigo2 myself, but not quite that decked out. Mine has a 100mb/s fast ethernet card, HighIMPACT framebuffer, 18GB narrow SCSI drive, the special SGI audio-capable DAT drive (which...
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