Personal computing discussed

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by Wirko
Wed Dec 11, 2019 5:26 pm
Forum: The Back Porch
Topic: LED Light for Snowblower
Replies: 43
Views: 692

Re: LED Light for Snowblower

I'm not sure we're talking about the same thing when we say "ground". Two wires should go to the AC (~) terminals of the bridge rectifier: one from the stator (this one goes through the switch and fuse), the other from the metal frame. It does not matter which is which. This is the AC part...
by Wirko
Wed Dec 11, 2019 3:52 am
Forum: The Back Porch
Topic: LED Light for Snowblower
Replies: 43
Views: 692

Re: LED Light for Snowblower

Just got my last component (KBPC5010 bridge rectifier for $0.80 total from China.... just shipping must cost more than that, right?). Too cold to install until this weekend. Then I'll post a completion photo/write-up. Since there's no negative from the snowblower, do I hook the "in -" fro...
by Wirko
Tue Dec 10, 2019 6:04 pm
Forum: Processors
Topic: 5 nm chips in 2020
Replies: 42
Views: 2241

Re: 5 nm chips in 2020

Back in the early days (no idea if any modern compilers still have this issue), some Fortran compilers did not strictly guard against this sort of thing in all situations. Arguments to functions were passed by reference, and to conserve scarce memory, all references to the same constant resolved to...
by Wirko
Tue Dec 10, 2019 11:03 am
Forum: Processors
Topic: 5 nm chips in 2020
Replies: 42
Views: 2241

Re: 5 nm chips in 2020

Igor_Kavinski wrote:
https://www.techspot.com/news/83078-haswell-back-intel-reverses-decision-discontinue-22nm-pentium.html

Haswell, welcome back from the dead :lol:

https://wccftech.com/intel-ceo-beyond-cpu-7nm-more/


Funny things happen if you apply the ++ operator on the constant 14 enough times.
by Wirko
Mon Dec 09, 2019 3:36 am
Forum: Storage
Topic: Discovering HDD geometry thru µ-benchmarking
Replies: 12
Views: 140

Re: Discovering HDD geometry thru µ-benchmarking

Captain Ned wrote:

That's a quantum computer. These are quantum computers. As they can do anything, they can also play music.
by Wirko
Sat Dec 07, 2019 12:20 pm
Forum: Storage
Topic: Discovering HDD geometry thru µ-benchmarking
Replies: 12
Views: 140

Re: Discovering HDD geometry thru µ-benchmarking

Captain Ned wrote:
Mine are 12" in diameter, rotate at 33 1/3 RPM, and have no random access capability. Latency for the innermost track can be as much as 24 minutes.

Oh they do have random access capability. It's perfectly possible that you never need it, though.
by Wirko
Sat Nov 30, 2019 6:07 pm
Forum: Storage
Topic: A surprising variety of SSD speeds
Replies: 34
Views: 481

Re: A surprising variety of SSD speeds

You have no choice anyway, at least if want one that's compatible with any devices.
by Wirko
Thu Nov 28, 2019 3:42 pm
Forum: Processors
Topic: Intel 10th-generation Comet Lake in 2020 on 14+++++ nm
Replies: 38
Views: 3171

Re: Intel 10th-generation Comet Lake in 2020 on 14+++++ nm

Intel's 14 nm process will end up so incredibly optimized in 2021 ... that Intel will hardly be able to achieve better performance at 10 nm or finer nodes.
by Wirko
Wed Nov 20, 2019 5:52 pm
Forum: The Back Porch
Topic: Something's different...
Replies: 1464
Views: 56646

Re: Something's different...

Decide on a new site to call home ... as I read this, I casually entered "askscott.com" into the browser and ... haha, Scott over there is related to gaming, somehow, in an unexpected way. But probably not the right person to ask for direction when looking for a new gerbil-friendly place.
by Wirko
Tue Nov 19, 2019 4:05 pm
Forum: General Software
Topic: Personal to do/task management software?
Replies: 10
Views: 318

Re: Personal to do/task management software?

Mozilla Thunderbird has a calendar with tasks and events, too.
by Wirko
Mon Nov 18, 2019 5:49 am
Forum: The Back Porch
Topic: Something's different...
Replies: 1464
Views: 56646

Re: Something's different...

Shall we open new threads to comment on the uncommentable, or would there be too much risk of attracting a big lightning strike?
by Wirko
Mon Nov 18, 2019 5:41 am
Forum: Processors
Topic: Ryzen 3xxx or Intel 10th?
Replies: 24
Views: 1542

Re: Ryzen 3xxx or Intel 10th?

I would think that they probably have built-in safeguards to ensure data integrity. If a certain Turbo Boost speed is causing errors, the CPU will silently discard the erroneous data and start over at a slightly lower speed until it achieves stability. Things like this are called RAS (reliability, ...
by Wirko
Fri Nov 15, 2019 6:24 pm
Forum: The Back Porch
Topic: Find keyless entry remote lost in home
Replies: 18
Views: 34378

Re: Find keyless entry remote lost in home

eBay is vaaaast. No wonder it takes 6.75 years for a detective to search through it and arrive at a conclusion.
by Wirko
Thu Nov 14, 2019 6:29 pm
Forum: Windows
Topic: Sick screens and sick screen handling
Replies: 48
Views: 1578

Re: Sick screens and sick screen handling

Look at these examples: https://www.bleepingcomputer.com/tutorials/how-to-start-windows-in-safe-mode/ . They're not even from XP but 98! Figure 2: several disabled checkboxes, grey on grey, because you can't change their state and their state doesn't matter until you click "Selective startup&qu...
by Wirko
Thu Nov 14, 2019 5:32 pm
Forum: The Back Porch
Topic: LED Light for Snowblower
Replies: 43
Views: 692

Re: LED Light for Snowblower

I have a headlamp. But this is much cooler! Also not interested in battery operation, same reason. You can have it all and be more cooler than everyone else in the middle of Wisconsin winter. Don't use batteries, run two wires from the snow blower to your headlamp instead! More seriously, you may f...
by Wirko
Wed Nov 13, 2019 10:09 am
Forum: Processors
Topic: Intel CPUs vulnerable to Zombieload v2
Replies: 7
Views: 193

Re: Intel CPUs vulnerable to Zombieload v2

K-L-Waster wrote:
From 2020 forward, the only safe computing involves an abacus.


PEBKAC thus becomes PEBAAC, which is great for security.
by Wirko
Fri Nov 08, 2019 1:59 pm
Forum: The Back Porch
Topic: Something's different...
Replies: 1464
Views: 56646

Re: Something's different...

The same SimilarWeb knows that: - Eye Bee Am's logo is this one: https://www.similarweb.com/website/ibm.com - TR has 10-50 employees (that girl ... she's a real multitasker) - TR belongs in "Top sites ranking for Computers Electronics And Technology > Programming And Developer Software" ca...
by Wirko
Thu Nov 07, 2019 3:52 pm
Forum: The Back Porch
Topic: Privacy Concerns Facebook/Google
Replies: 11
Views: 1123

Re: Privacy Concerns Facebook/Google

I realize the OP is a few months old, but this is relevant: https://en.wikipedia.org/wiki/Device_fingerprint Bottom line is, if you've *ever* been logged in from a particular device, there are methods for Google, Facebook, etc. to make a reasonably good guess at when you use that device again, even...
by Wirko
Thu Oct 31, 2019 1:27 pm
Forum: Processors
Topic: AMD Ryzen 3xxx - RDRAND bug
Replies: 18
Views: 1016

Re: AMD Ryzen 3xxx - RDRAND bug

Igor_Kavinski wrote:
I say intentional sabotage by a former disgruntled engineer.


just brew it! wrote:
Possible (though unlikely IMO)... it boggles my mind that this got past validation testing, sabotage or not.


An engineer in the QA department, then.
by Wirko
Sat Oct 26, 2019 9:05 am
Forum: The Back Porch
Topic: Something's different...
Replies: 1464
Views: 56646

Re: Something's different...

Can't we just agree that every editor is a good editor? (as long as its learning curve looks and feels like Mexico border wall)
by Wirko
Fri Oct 25, 2019 10:36 am
Forum: Processors
Topic: 5 nm chips in 2020
Replies: 42
Views: 2241

Re: 5 nm chips in 2020

Dies are already a few layers. I wonder if the problem with die-stacking is heat. All procesing logic is manufactured on the substrate - I'm not aware of any exceptions. Every single transistor is made up of several layers of course, but there aren't any transistors on top of other transistors. Hmm...
by Wirko
Thu Oct 24, 2019 3:35 pm
Forum: General Hardware
Topic: Reputable vendors of lithium batteries (14500, 18650, etc.)?
Replies: 9
Views: 1610

Re: Reputable vendors of lithium batteries (14500, 18650, etc.)?

If you're not willing to trust the Trustfire, Everfire and Ultrafire brands, which go over 9000 easily (I've seen 9800 mAh) ... then there are still Samsung and Panasonic 18650 cells on ebay.com, offered by sellers in China, Europe and UK. Judging by the looks and realistic mAh ratings, they seem ge...
by Wirko
Thu Oct 17, 2019 9:57 am
Forum: The Back Porch
Topic: Something's different...
Replies: 1464
Views: 56646

Re: Something's different...

Yes, I was talking about a brief period when I (or anyone) could post comments as Dam Age, da Mage, d'Amâge, or any other name.
by Wirko
Thu Oct 17, 2019 5:35 am
Forum: The Back Porch
Topic: Something's different...
Replies: 1464
Views: 56646

Re: Something's different...

It isn't a login but it's a crude form of authentication at least. It could be (and was!) much worse in the early days of the New Tech Report.
by Wirko
Tue Oct 08, 2019 4:11 pm
Forum: Processors
Topic: Is context switching speed the real reason behind Ryzen's success?
Replies: 14
Views: 1015

Re: Is context switching speed the real reason behind Ryzen's success?

Is is necessary to reload page tables during each context switch, or just when switching to another process, or even less often? How long does that take?
by Wirko
Mon Sep 30, 2019 4:16 am
Forum: Storage
Topic: HDD burn-in software for Windows?
Replies: 18
Views: 1194

Re: HDD burn-in software for Windows?

just brew it! wrote:
Not aware of anything that has the pause/resume functionality (which seems to be kind of an oxymoron for a "burn in" test anyway, what's the point of that?)


It makes sense if thermal cycling and startup procedures kill HDDs, and they probably do, sometimes.
by Wirko
Wed Sep 25, 2019 5:20 am
Forum: The Back Porch
Topic: The Cat Report?
Replies: 26
Views: 1871

Re: The Cat Report?

Ocatober is nigh.
by Wirko
Mon Sep 23, 2019 3:31 am
Forum: Processors
Topic: Think Moore's law is dead? WRONG
Replies: 15
Views: 958

Re: Think Moore's law is dead? WRONG

We people are living in a fantasy world of "atomic clocks" and stuff, and we think two years have passed. Atomic ... hahaha. Meanwhile, in the real world of Moore's Law, it's only been a couple months!
by Wirko
Sun Sep 22, 2019 8:39 am
Forum: The Back Porch
Topic: Goodbye TR, it was a great run
Replies: 91
Views: 7502

Re: Goodbye TR, it was a great run

I''l leave this here and run ...

https://www.entrepreneur.com/article/284714
by Wirko
Fri Sep 20, 2019 2:53 pm
Forum: The Back Porch
Topic: The Cat Report?
Replies: 26
Views: 1871

Re: The Cat Report?

Maybe the cats are the canary for TR. As long as they're alive and well and somehow sneak into every pic, everything is alright. Once they're not seen any more, though ...
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