Personal computing discussed

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by notfred
Wed Nov 22, 2017 9:42 am
Forum: General Hardware
Topic: Best wireless printer
Replies: 4
Views: 184

Re: Best wireless printer

The answer used to be an HP small business laser, the old Laserjet 4si being a notorious tank of a printer (although from the days before wifi!). These days I'm not so sure about HP, but no matter which company I would tend to look at the small business offerings rather than the home stuff.
by notfred
Tue Nov 21, 2017 1:22 pm
Forum: Developer's Den
Topic: GCC errors with compiling C code.
Replies: 292
Views: 5753

Re: GCC errors with compiling C code.

It's best if you do just to help in avoiding doing something boneheaded, but I think Buub was referring more to the kind of "micro-optimizations" that may shave a some CPU time off the program, but do so at the expense of readability. Yes, this too. Make the code correct, first, then opti...
by notfred
Mon Nov 20, 2017 8:46 am
Forum: General Hardware
Topic: Got to try VR today...
Replies: 3
Views: 305

Re: Got to try VR today...

Here in Ottawa we have Colony VR which uses the HTC Vive setup. Only did the intro and Space Pirate Trainer for about 20 minutes total but it was great fun.
by notfred
Wed Nov 15, 2017 2:20 pm
Forum: The Back Porch
Topic: Quite possibly the greatest car ever
Replies: 45
Views: 1742

Re: Quite possibly the greatest car ever

Renault weren't the only ones throwing F1 motors in "production" vehicles. The Ford Transit Supervan 3 originally had a Cosworth V8 in it.
by notfred
Tue Nov 14, 2017 10:40 pm
Forum: The Back Porch
Topic: Quite possibly the greatest car ever
Replies: 45
Views: 1742

Re: Quite possibly the greatest car ever

I have a Kia Soul EV which will charge at the local Ikea at 390V 125A DC. There are 2 of the DC fast chargers in the parking garage - I can just imagine the lights in the store dimming if 2 of us plug in at the same time. In fact my car will actually charge at 175A - just that there are no 100kW CHA...
by notfred
Thu Nov 09, 2017 12:31 pm
Forum: The Back Porch
Topic: End of an E®A
Replies: 85
Views: 4371

Re: End of an E®A

Executive retention bonuses. If they wind up the company now then the poor execs don't get lots of fat retention bonuses and the workforce may still have money in the benefits pot. See Sears Canada for reference.
by notfred
Thu Nov 09, 2017 9:45 am
Forum: Developer's Den
Topic: GCC errors with compiling C code.
Replies: 292
Views: 5753

Re: GCC errors with compiling C code.

It's also really surprising that no matter how many hours you have spent staring at a bit of code trying to work out where the bug is, if you start explaining it to someone else the bug often becomes obvious.
by notfred
Wed Nov 08, 2017 12:57 pm
Forum: The Back Porch
Topic: Home A/C Air Handler
Replies: 29
Views: 955

Re: Home A/C Air Handler

Bust out the soldering iron and replace the one that's on the board?
by notfred
Tue Nov 07, 2017 10:26 pm
Forum: Apple Sanctuary
Topic: iOS or my car?
Replies: 6
Views: 450

Re: iOS or my car?

That link is just about what data gets sent back to the phone, not about where the app runs and what it sends across the network link. Also note that Google denied the claims in the article.
by notfred
Tue Nov 07, 2017 8:08 pm
Forum: Developer's Den
Topic: GCC errors with compiling C code.
Replies: 292
Views: 5753

Re: GGC errors with compiling C code.

M-x untabify in (X)emacs :)
by notfred
Tue Nov 07, 2017 12:49 pm
Forum: Apple Sanctuary
Topic: iOS or my car?
Replies: 6
Views: 450

Re: iOS or my car?

It's not your car. Apple CarPlay and Android Auto are basically dumb touchscreens, the app runs on the phone and not on the headunit.
by notfred
Sun Nov 05, 2017 8:41 pm
Forum: Linux, Unix, and Assorted Madness
Topic: gigabit ethernet throughput
Replies: 20
Views: 993

Re: gigabit ethernet throughput

Press "1" in top to get the per-cpu usages.
by notfred
Sun Nov 05, 2017 8:40 pm
Forum: Developer's Den
Topic: Anyone use Forth, or have experience with it?
Replies: 136
Views: 3423

Re: Anyone use Forth, or have experience with it?

Or, for a real mind bender, check out the setjmp() and longjmp() functions. A sufficiently clever (or sick, depending on how you look at it) developer can use these calls to implement cooperative multi-threading in a single-threaded environment (e.g. embedded device). We had one of those sufficient...
by notfred
Sat Nov 04, 2017 1:15 pm
Forum: Developer's Den
Topic: Anyone use Forth, or have experience with it?
Replies: 136
Views: 3423

Re: Anyone use Forth, or have experience with it?

vi isn't a "What You See Is What You Get" (WSYWIG) editor, it's more like "You Get What You Asked For, Even When You Didn't Mean It!"

I'm like JBI, I'll use vi for quick and dirty stuff, but I'm really an XEmacs person.
by notfred
Fri Nov 03, 2017 3:09 pm
Forum: Linux, Unix, and Assorted Madness
Topic: gigabit ethernet throughput
Replies: 20
Views: 993

Re: gigabit ethernet throughput

I'm seeing Intel GigE PCIe cards for ~$40 Canadian from Newegg, Amazon and Canada Computers. I don't call that expensive for never having to worry about Realtek again - fear the crab!
by notfred
Fri Nov 03, 2017 1:40 pm
Forum: Linux, Unix, and Assorted Madness
Topic: gigabit ethernet throughput
Replies: 20
Views: 993

Re: gigabit ethernet throughput

You already know the answer:
captaintrav wrote:
Predictably, an old laptop with an Intel gigabit NIC can thrash ~1gbit in either direction,

Messing around with anything else is just wasting your time.
by notfred
Tue Oct 31, 2017 10:10 am
Forum: Developer's Den
Topic: Anyone use Forth, or have experience with it?
Replies: 136
Views: 3423

Re: Anyone use Forth, or have experience with it?

Hadn't come across dc before, I'll stick to bc.
by notfred
Tue Oct 31, 2017 8:34 am
Forum: TR Sports
Topic: Formula One 2017
Replies: 226
Views: 22179

Re: Formula One 2017

Vettel certainly sliced through the back markers with more authority than Hamilton did in this race. How many laps did it take the world champion to get around Pascal Wehrlein in the lowly Sauber? Vettel's damage in the first lap was to the front wing, which was replaced in the pitstop. He had a fu...
by notfred
Tue Oct 31, 2017 8:23 am
Forum: Developer's Den
Topic: Anyone use Forth, or have experience with it?
Replies: 136
Views: 3423

Re: Anyone use Forth, or have experience with it?

Only Forth I've done was Sun SPARC OpenBoot. I really don't like RPN.
by notfred
Mon Oct 30, 2017 8:18 am
Forum: The Back Porch
Topic: Obsolete IT in the wild
Replies: 122
Views: 3962

Re: Obsolete IT in the wild

I'm a C programmer, but I still need to know enough assembly to work out exactly what has gone wrong when I get a crash in from the customers. Modern C compilers with the optimiser on really do some strange things with the code and working out exactly which bit went wrong is not always obvious, look...
by notfred
Mon Oct 30, 2017 7:54 am
Forum: General Hardware
Topic: the most advanced 80's 8-bit CPUs?
Replies: 54
Views: 2537

Re: the most advanced 80's 8-bit CPUs?

Unlikely to be Linux, more likely to be a more embedded OS in your smart appliances. It's probably a 32 bit ARM or an x86 processor, maybe only one or 2 cores and quite low clock speed in comparison to what you are used to.
by notfred
Fri Oct 27, 2017 7:49 am
Forum: General Hardware
Topic: the most advanced 80's 8-bit CPUs?
Replies: 54
Views: 2537

Re: the most advanced 80's 8-bit CPUs?

I had a Commodore 64 and did some assembly language programming on it. The biggest problem I had was the lack of registers A, X and Y. To hinder things even more, the X and Y registers were really for indexing the A register's access to memory. The Commodore 64 actually had a 6510 which was a 6502 w...
by notfred
Thu Oct 26, 2017 10:05 am
Forum: TR Sports
Topic: Formula One 2017
Replies: 226
Views: 22179

Re: Formula One 2017

Thanks for that, I hadn't seen it linked to elsewhere and was hoping that they would release it.
by notfred
Wed Oct 25, 2017 8:31 am
Forum: Networking
Topic: Time to update everything WiFi
Replies: 60
Views: 4609

Re: Time to update everything WiFi

Found a thread about it:
http://forum.notebookreview.com/threads ... lp.731735/

IPEX MHF4 connectors on the old card vs Hirose U.FL connectors on the new.
by notfred
Tue Oct 24, 2017 9:08 am
Forum: TR Sports
Topic: Formula One 2017
Replies: 226
Views: 22179

Re: Formula One 2017

This decision is done and dusted, but going forwards Charlies, the stewards and the FIA need to be consistent. Get rid of the "gaining an advantage" part of the rule - just make it all 4 wheels over the line = automatic 5 second penalty. Obviously if forced off the track by another driver ...
by notfred
Tue Oct 24, 2017 8:37 am
Forum: Networking
Topic: Time to update everything WiFi
Replies: 60
Views: 4609

Re: Time to update everything WiFi

Would be useful to have an Android tool to test/demonstrate it on vulnerable networks. There is a tool (unknown if it is an Android app or something else) that will detect the vulnerability but it hasn't been published yet: https://www.krackattacks.com/#tools I think it will be a while before anyth...
by notfred
Thu Oct 19, 2017 10:02 am
Forum: The Back Porch
Topic: Obsolete IT in the wild
Replies: 122
Views: 3962

Re: Obsolete IT in the wild

Got a customer asking for adding a feature to something that we shipped 10 years ago. Embedded never dies!
by notfred
Thu Oct 19, 2017 9:15 am
Forum: Networking
Topic: Time to update everything WiFi
Replies: 60
Views: 4609

Re: Time to update everything WiFi

When WiFi security works properly, nobody can see your traffic because it is all encrypted between your phone or laptop and the Access Point. This means that if you are sitting at a coffee shop using their WiFi then the people at the next table can't sniff your traffic. The breakage means that someo...
by notfred
Mon Oct 16, 2017 8:34 am
Forum: Networking
Topic: Time to update everything WiFi
Replies: 60
Views: 4609

Time to update everything WiFi

https://www.krackattacks.com/

You need to update all your WiFi clients as well as APs.
by notfred
Fri Oct 13, 2017 12:23 pm
Forum: TR Sports
Topic: Formula One 2017
Replies: 226
Views: 22179

Re: Formula One 2017

They've updated the story, it's Brendon Hartley from WEC.