Re: All very bizarre
""Compute" is a verb."
Certainly I've been using compute servers for years
2071 posts • joined 24 Mar 2010
""Compute" is a verb."
Certainly I've been using compute servers for years
If a GPU is available it should be used to decode video. Running 1080p/50 video on a rather elderly Linux dual-core AMD takes all the processor - with a GPU and vdpau it takes ~10% and it becomes possible to watch edits whilst transcoding several other videos AND still have a responsive system.
"I wrote a 6802* cross-assembler "
Actually I used it for a 6802 - it was the first cpu project I did and the end-result was a burglar alarm. Luckily I only needed to run the assembler twice as it was so slow. I had to shoehorn a PIA into the Dragon I was using to run a home-made EPROM programmer. I rapidly shifted to 6809s and Forth assembler after that !
"preferably with a hex editor they'd written for themselves in their computer''s basic)"
Well I did write an 6800 assembler once in BASIC but that took hours to assemble 1K of code - raw hex is much better written on bare hardware and a hex keypad ( no- it's NOT )
I'll start you off :
: BRAIN HALFABRAIN HALFABRAIN ;
"Driver support for Linux is still hit or miss. In order to make a particular distro work on a particular piece of hardware, you have to do some tuning."
Mostly you are wrong. I've not had to do that for ~6-7 years and I install 3-5 a year on quite a range of hardware even 3G dongles and printer/scanners have worked out of the box.
I don't know where you get your 'information' from as you seem so dismissive of Linux but I can't believe that it from personal experience. If indeed Dell have some custom components, which I find hard to believe, then some configuration/coding might be necessary.
"You then go to Nvidia and get the proper drivers and away you go. What could be simpler? "
I agree entirely - some here would say not - they are wrong !
I've no experience of recent Photoshops as I stopped using WIndows a few years back but I did have a legit copy of Photoshop Expressions which worked perfectly under Wine - I seem to recall it had just one massive .dll Certainly if you must have something it's a powerful argument.
If you don't mind telling what do you need to do that isn't available on Linux ? I know there must be some things but it'd still be good to know.
"Without an atmosphere there is no effective blast wave nor thermal radiation"
No thermal radiation ? - better tell the sun
"It'd make a nice little crater, and that'd be about it"
So it has been done before and many times !
Mad fools - they probably thought "Dr Strangelove" was a documentary.
"if you want to power a spaceship, you just need your everyday domestic wind turbine kit you will have in your loft, and a power drill motor to turn the direct drive dynamo instead of the wind,"
That'd be a troll then - there IS an icon you know
You Sir are a troll or sadly lacking in even the basics of a scientific education.
Seriously try http://en.wikipedia.org/wiki/Perpetual_motion as a primer
So build one !
Bet you can't !
What has Earth's gravity got to do with it other than giving a name to a unit of acceleration that's biologically relevant ?
A rocket far from any gravity source will still generate a force on it's occupants when the engine is running that can be measured in Gs indeed that's an Einstein thought experiment that's used in GR discussions
"when renewing their £15-20/month contract buut often it has no data so basically they are just getting the handset to use as a full screen phone (plus texts)."
It's quite possible (my wife has just done it) to get a mid-range Android phone, 1GB data, 250 mins, 5000 texts for £15/month in the UK.
"requires every person to understand the world to some degree"
Not just democracy. In part lots of aspects of education are of themselves no direct path to a career. For example most people are not going to use calculus or chemistry or lots of other parts of the syllabus. It doesn't mean that exposure to some aspects isn't worthwhile. Many people don't know what they want to do - exposure to a bit of coding or hardware hacking may well be the start of someones career - I'm sure it was for some people here.
Although I'm not an IT professional an interest in electronics from 13 and coding all my adult life meant that when I NEEDED to write my own software for scientific purposes I could.
"Do you think browsers would be free if not for MS?"
Well they bloo** well were before IE !
is from Byte or PCW I *think*
when the IBM PC first came out.
Dark clouds filling the sky with a giant hand & arm piercing them with an IBM PC like a little toy in it's palm
with the caption "The jolly grey giant delivers the goods" or some such.
"Redmond and of those not finding a chair when the music stopped."
Er, I think there might be a shortage of unbroken chairs at Redmond !
"t is not Microsoft's fault they don't really cut it for most users..."
Indeed MS don't !
"Android and Linux will converge soon, someone somewhere will produce some kind of "Android Framework" that you could install on any distro so you can double click on .apk files."
Oddly enough I've just been trying a x86 Android build (for eeepc) in VirtualBox (on Linux) -seems stable and just like my wife's phone with the exception that there's no wireless, phone, GPS of course and there is a virtual Eth0. An SD card can be emulated but I've not got round to that yet so can't install apps. at the mo. There is a terminal emulator so I can tell you the kernel is 3.0.36-android-x86-eeepc.
gives A name of the gchq resident historian
I'll just say "John Le Carre" and "workname"
"'were designed only to be able to be read by the senders and the recipients''"
Yes, I heard that too, as well as the journo wailing something like "with all this technology and supercomputers you'd think ....."
If it's a one-time pad AND no context it's all but impossible
(Might be - remember wartime -rationing- "Put this bird in an oven gas mark 5")
"I'm wondering how they make antihydrogen from antiprotons. Does the proton 'pick up' an ordinary electron, which stays in orbit due to normal processes, or do they give it an antielectron?!"
Well the antiproton would have a negative charge so they'd need a positron rather than an electron. I think antiprotons are relatively 'easy' to make but generating antihydrogen and bringing to reasonable temperatures seems a lot more difficult
"why MS should even bother to spend money developing free software"
One reason is that they charge for skype <=> conventional phone calls. Very reasonable price. I use it regularly to call my mother in UK from Switzerland - costs <2p /min. I see now it can be just £4/month for unlimited calls on a subscription basis (but a fair usage policy !)
Works fine on Linux - we've got a USB headset that improves the quality a lot
Thanks for that.
In reality I'm not too worried - I run a webserver on the internal network but the only external open port is a non-standard one for SSHD which as I mentioned has a password from hell *and a very non-standard username as the only valid account. The server running SSHD is firewalled, the NAT router is firewalled and all ports below 1024 are filtered at my ISP. I'm assuming that the major risk is e-mail attachments and given that I'm VERY suspicious and have trained my wife to be the same I'm fairly sanguine.
I agree I could try tripwire or some such or apparmor.
I really wanted to open up any discussion around Linux security and see if there was anything I'd missed.
*The password from hell is NOT written down, is 20 digits long something not like "bcGbf54TTt32dfcm2n1f" and generated on the fly by a little c program from a passphrase that I can remember. I use the same method, with different passphrases for all my serious passwords
Genuine non-trolling query
I've used Linux for years without any anti-virus, as far as I know there are so few threats and the existing AV programs mostly seem to look for Windows malware that might be passing through. It's summed up in these quotes from the Wikipedia page : http://en.wikipedia.org/wiki/Linux_malware
"There are a number of anti-virus applications available which will run under the Linux operating system. Most of these applications are looking for exploits which could affect users of Microsoft Windows."
"The following is a partial list of known Linux malware. However, few if any are in the wild, and most have been rendered obsolete by Linux updates or were never a threat. Known malware is not the only or even the most important threat: new malware or attacks directed to specific sites can use vulnerabilities previously unknown to the community or unused by malware."
So far I've relied on regular updates, good firewalls, careful browsing on a limited account, separate account for banking, VERY hard passwords for secure stuff like banking and SSH, and rigid adherence to good practice. (yes I often get e-mailed Windows malware or phishing tricks)
The questions - is this enough - anyone know how effective the current AV products are ? - is this a non-issue ?
I've found it VERY slow when the computer has certain internet connections bizarrely enough
With my home wifi or ethernet it's very fast but at our holiday home (shared wifi) or other wifi or using a 3G dongle it hangs for quit a time before behaving normally - turn off the connection and it's fine.
I think it's a known issue but I can't find it at the mo'
"I'm more concerned that someone might find themselves £300+ out of pocket after breaking their computer by experimenting with Linux."
The only thing they'd break would be Windows NOT £300 of computer in any case.
Excellent HHGG ref.
"uses the command-line so much, it just struggles graphically."
Just been editing 1080p/50 video on a rather elderly 2-core AMD - works fine - no struggles
"as you found out Linux really isn't ready."
FUD absolute FUD
And if you want to try and don't want a real installation use VirtualBox
"Linux is too broken to use"
That's rather a broad comment given that lots of people use it all the time. I do every day - I don't use anything else. I obviously can't help with your problem esp. as as it's so vague. I do know that before I retired 200+ people used it in the company I worked for all the time and that was 8-9 years ago.
My wife, who had little in the way of computer education, used Windows at her school until she retired but then had no problem shifting to Linux.
"Why would an average computer user need emacs or vi ?"
They wouldn't need emacs or vi but then again a lot of Linux users are more technically inclined.
I listed my 'user' stuff earlier but in addition :
gcc - I write quite a lot of stuff in 'c'
tcl/tk - for quick GUI front-ends
Now I'm not a IT professional, although I've been using and building computers since the Science of Cambridge Mk14 and written quite a lot of scientific programs and others for my own use.
Well my version of KDE has screen capture built in and indeed a clipboard that handles multiple entries and has done for years - all out of the box.
At least Jake lives as he wants to ( as maybe we all should )
I suspect he's a lot happier than most of the people that criticize him.
A video editor - I mostly use kdenlive which supports 1080p/50
UFRAW plugin for GIMP
Hugin for panorama creation
+2 I couldn't do without vncviewer for remote access and sshd/ssh/fish but they are likely built-in.
mplayer from the command line plays videos esp. 1080p/50 with the lowest cpu usage(~10% on my rather old dual-core AMD) although many other players support acceleration.
6809 was my favourite for writing assembler - position independent code - lovely - enough 16-bit registers and elegant addressing modes to implement FORTH easily - NEXT as a 4 byte macro.
First thing I ever programmed - 256 bytes of memory - raw machine code - bloody awful, wonderful days !
"Linux runs primarily on ARM"
Further a lot of distros are starting to ship ARM versions - in any case Linux is available for almost everything - I'm suprised that there isn't a version for Babbage's machine
"are using applications from this decade"
Interesting then that one of my Linux workstations managed to edit and render 1080p/50 video, whilst running two desktop users yesterday - I think that's probably of this decade as the camera is only 9 months old
Stuff iPhones my mother's gas CH boiler crashes once or twice a year. There's even a little aide-memoire for rebooting it along with a manufacturer's note that dismisses the occasional crash as nothing too important !
"Humans can breathe pure O2 just fine at lower pressure"
Indeed they can and as the pressure on Mars is too low they'll need a sealed environment to live in so lower pressure oxygen is helpful.
Somehow I can't believe that the huge number of upvotes for Trevor's post reflect the ratio of Linux supporters/Windows supporters - I'd guess it rather reflects the opinions of disgruntled Windows users/admins !
Never mind Trevor - it's the thought that counts - well done !
..are your friend.
"due to the volume of important data being generated by (sensors) and social media sites like Twitter and Facebook,"
"64-bit Linux, LibreOffice, a full software development system and various graphical packages takes a full 6GB."
I'm rather confused - the table of features claims capacitive touchscreen but the text mentions optical sensors - which is it ?
(The optical sensor often picks up your finger proximity without you actually having to touch the screen)