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Topic: OT: Tech Nerd Thread

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betarhoalphadelta

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Re: OT: Tech Nerd Thread
« Reply #126 on: April 21, 2025, 12:48:41 PM »
I didn't even know what that meant, and I still don't, really.
They were used for floating-point arithmetic. As you can imagine, computers only deal in 1s and 0s. The processors of the time didn't have dedicated silicon for advanced arithmetic. Which means they had to essentially use software algorithms to do any complex mathematical operation. And software is much slower than dedicated hardware inside the chip for these operations.  

So if you didn't have a math coprocessor (FPU), your computer could still do all those calculations, entirely in software. Which wasn't fast enough for those games. If you had the FPU, then it would simply route all those instructions to the FPU, and you had plenty of performance for games. 

Now, as you mention, any modern processor will have that function built in.

For modern computers, the analogy would be the graphics cards (or GPUs) needed for games. Essentially the same thing--complex graphics rendering takes an extraordinary amount of computing power to emulate in software. But if you can have dedicated silicon that do the necessary functions in hardware, you can not only get it done quickly but leave the main processor (CPU) to use its resources on other things. 

---------------

But... Fun story. In 2001, in my first job out of school, I worked for a company that produced programmable logic (FPGA) chips. These were "general" chips full of logic that you could use to map out complex logic and still have it run "in hardware", which was important for MANY functions if you needed the speed of hardware but whatever you were doing didn't lend itself to actually having the dedicated chips designed and fabricated to do it. 

Well, one of the things it had at the time was a software-designed (known as a soft core) embedded processor function. Meaning you could emulate a processor in the logic, and use it to run software as opposed to dedicated complex logic. As it was new, the company had an internal design competition to show ways to use the processor. The group I was in... Designed an FPU to go along with it as it didn't have one natively in the design. And we tested software processing of floating-point arithmetic vs our "coprocessor", and our FPU showed a 100-fold reduction in number of clock cycles to perform calculations compared to emulating it in software. 

Gigem

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Re: OT: Tech Nerd Thread
« Reply #127 on: April 21, 2025, 01:10:04 PM »
I have no idea how you'd do it, but it would be neat to do a back of the napkin calculation on how much computing power your iPhone or Android has (in your pocket you carry everyday) versus the entire computing power of the world of a certain date.  

For example, without knowing all the specifics of the era, I can confidently say that my (aging) iPhone 13 has more computing power than existed in the entire world in 1950.  And probably also 1955.  1960-65, I would guess that I would still exceed the entire computing power of the world, but I'm not sure.  1970-75, I'd doubt it.  1980?  Probably not.  

I guess you'd have to estimate how much power a typical computer from back then had and then estimate how many systems they shipped etc.  I read somewhere awhile back that we make more data in one day than existed in the entire history of the world until about 2003.  This was a few years ago, so we might make more data in 1 hr than the rest of the world until 200x.  

utee94

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Re: OT: Tech Nerd Thread
« Reply #128 on: April 21, 2025, 01:12:14 PM »
I have no idea how you'd do it, but it would be neat to do a back of the napkin calculation on how much computing power your iPhone or Android has (in your pocket you carry everyday) versus the entire computing power of the world of a certain date. 

For example, without knowing all the specifics of the era, I can confidently say that my (aging) iPhone 13 has more computing power than existed in the entire world in 1950.  And probably also 1955.  1960-65, I would guess that I would still exceed the entire computing power of the world, but I'm not sure.  1970-75, I'd doubt it.  1980?  Probably not. 

I guess you'd have to estimate how much power a typical computer from back then had and then estimate how many systems they shipped etc.  I read somewhere awhile back that we make more data in one day than existed in the entire history of the world until about 2003.  This was a few years ago, so we might make more data in 1 hr than the rest of the world until 200x. 
This is why bwar's employer exists and persists. :)


Cincydawg

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Re: OT: Tech Nerd Thread
« Reply #129 on: April 21, 2025, 01:15:28 PM »
My wife has an iPhone 15 and says she took 3500 photos on our trip (in addition to the thousands she already had).  Just the storage for that many high res photos would be impressive.


Gigem

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Re: OT: Tech Nerd Thread
« Reply #130 on: April 21, 2025, 01:16:43 PM »
I find that when I take photos that I'm not in, it becomes super uninteresting.  Because you can pretty  much pull the same photos from any quick search.  I still take em, but they never look as good in person.  

MikeDeTiger

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Re: OT: Tech Nerd Thread
« Reply #131 on: April 21, 2025, 01:20:54 PM »
This is why bwar's employer exists and persists. :)

His company is just a front, so that when the aliens arrive, they'll have all our data, strengths and weaknesses, easily available for a much quicker and cleaner conquest and subjugation.  

betarhoalphadelta

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Re: OT: Tech Nerd Thread
« Reply #132 on: April 21, 2025, 02:35:52 PM »
I read somewhere awhile back that we make more data in one day than existed in the entire history of the world until about 2003.  This was a few years ago, so we might make more data in 1 hr than the rest of the world until 200x. 
This is why bwar's employer exists and persists. :)
Yep. I think the factoid we recently used was that more data was created in the last 3 years than in the previous 3,000. 

And that the rate of annual data creation will almost triple between 2023 and 2029. 

Of course, a tremendous amount of that data is transitory and not stored long term. But the global installed data storage capacity is projected to double over that time frame as well. 

The advances in AI/ML increase the ability to extract value from stored data as well, so it should be accretive to the existing projections.

Gigem

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Re: OT: Tech Nerd Thread
« Reply #133 on: April 29, 2025, 10:48:10 AM »
Question for some of you more tech-saavy types.  What is the deal lately where they will post clips from some TV show or movie and have the screen inverted or wavy lines or something running through the picture constantly?  Is this some sort of AI trickery work-around to keep the copyright violations at a minimum or what exactly is going on?  

MikeDeTiger

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Re: OT: Tech Nerd Thread
« Reply #134 on: May 01, 2025, 05:55:08 PM »
A guy in my department does our federal/state reporting.  He does a lot of his data analysis and creates a lot of his reports with Tableau.  In talking about something else in passing, I realized he's been loading disparate files run off our database (which is it's own Frankenstacked nightmare) and doing all his joins and unions there.  It's because he manages the database reports with Excel, which can't even come close to aggregating that amount of data before loading it in Tableau.  Unfortunately, while Tableau can do all that stuff for you, under the hood everything is still separate, and your processor feels it.  

I asked him a few questions about what he was doing and then asked if he'd share the files so I could try something.  With the quickest of small data-cleaning measures, I put it all together in a few minutes for him to try loading it that way.  I have never seen the guy so enthused about anything.  He came over to my desk with a lot of excitement to tell me how quickly everything loaded and rendered, and how he was used to performing calculations and it taking several minutes a pop, and how amazing this is, and if he can give me all his data at the end of every semester to compile. 

Thing is, this was the dumbest, most basic, Day-1 kind of data analytics "prowess" imaginable.  Literally, I concatenated some data sets......yippee 🙄.....and he was acting like it was magic.  Public university!  We'll teach your kids how to do stuff, but we're not very good at doing stuff.  Obviously the students who take classes similar to what I went to school for don't get jobs here.  

It reminded me of something utee94 told me years ago when he went to work for the BBUN, about how their systems were all clunky, ancient, and inefficient.  There are so many examples of that around here.  This entire floor is IT, but yet we keep adding to the disfigured monster instead of really updating and modernizing things.  I probably just don't understand what all would be involved with truly renovating our processes.  However, I at least know what it would take to handle our department's data better, and frankly, it's not much.  It just doesn't happen, for whatever reasons.  

Gigem

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Re: OT: Tech Nerd Thread
« Reply #135 on: May 01, 2025, 06:03:56 PM »
I manage something like that. We enter all our project data into a giant excel sheet, and then we run a macro to pull costs out of SAP and then creates a new excel file, which then gets imported back into excel. Somehow I got put in charge of this thing and the littlest change breaks it. It’s broken right now, I have no idea how to fix it. It just tells me something about a pivot table. 

MikeDeTiger

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Re: OT: Tech Nerd Thread
« Reply #136 on: May 02, 2025, 09:47:44 AM »
The ERP department is in our office.  Or, technically, we're in their office.  I think maybe they use SAP to integrate with Oracle or SQL Server or whatever they're using.  They can't use Excel, though.  My department luuuuurrves Excel.

utee94

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Re: OT: Tech Nerd Thread
« Reply #137 on: May 09, 2025, 12:20:52 PM »


MikeDeTiger

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Re: OT: Tech Nerd Thread
« Reply #138 on: May 09, 2025, 01:19:12 PM »
Under where it says "Regulators" I want it to say "Mount Up!"  

betarhoalphadelta

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Re: OT: Tech Nerd Thread
« Reply #139 on: May 09, 2025, 02:39:04 PM »
I always had a problem with the resistor color coding. 

Not that I didn't understand it, nor remember it, or was unable to use it. 

But being color blind, I just didn't know what damn colors I was looking at! 

Particularly the brown/red distinction, as red--I suffer from protanomaly--is a very dark color to me. Essentially it attenuates the red content of everything I look at. I couldn't easily distinguish it from brown, and sometimes not well from black unless it was a STARK black line. That also gets me in trouble between blue and violet, as my eyes don't properly pick up the red content in violet, so it usually just looks like another shade of blue to me. 


 

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