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An excellent example of layered protocols. IP, the lower layer, handles the node-to-node messages, as your tracert shows. But a couple of levels higher, the http headers convey the endpoint IP addresses required for end-to-end intelligence. Something like Wireshark will pull the packets apart for you, if you're interested.
Software rusts. Simon Stephenson, ca 1994. So does this signature. me, 2012
So I'm now working on my old desktop PC[^].
It turns out to be a sloooooow machine... What happened!?
I've used this for years without problems, but I've barely used it for a good year and it takes about four hours to install some updates (52, about 400 mb) and another four hours to install Visual Studio 2015 CE
It hangs regularly, just doing nothing and then suddenly doing that thing I clicked on seconds ago.
Sometimes even my music just goes like "brrrrr" for about half a second because somehow my computer can't process any more stuff... IT'S NEVER DONE THAT!
Perhaps I should look into upgrading some hardware or even buying something new...
give it a good dusting, push everything into the sockets
Yeah, it wasn't very dusty and the hardware was tightly secured into the sockets.
Run a disk check, memory check, check check
Yep, it seemed SQL Server was running all kinds of stuff that I never use, but installed once to play around with. Other than that no problems though.
I did a clean install about two years back. Maybe I should do that again... I've got most files backed up anyway.
If it's still slow after that it's clearly the hardware that's the problem.
First time you're giving me actual good advice by the way, thanks.
I'd thank you with an awesome song, but we all know how that's going to end
When a horse gets used to cantering and galloping, but then you dump it in a field to do nothing but graze for a year, everything about it weakens a little.
Given that you installed a fair number of updates (including, I presume, some cumulative ones), I'd give it a couple of cold reboots, just to make sure that everything is cleared out.
If you have Java installed, completely disable their update checker. If that thing finds an update, it seems to slow everything down until you either apply the update or kill the damned thing (I ended up renaming the .exe -- belt & braces, you know)
I wanna be a eunuchs developer! Pass me a bread knife!
They explained it at build.
As the PC grows older, the Windows registry gets more momentous and everything get slow.
Problem they are working on with Windows 10.
UWP don't use the registry no more!
Dunno about other apps though...
I recently bit the bullet and replaced my hard drive (actually I was forced to as the old one failed) I bought a (£70) SSD and installed everything I really need from fresh - it took a few days to straighten it all out what with updates etc - I even went Win 10, why not? All seems to be working fine as before except a lot faster! PS I also gave it a good clean out, the desktop is kept at floor level and sure does accumulate dust inside - I took off the CPU fan to clean it as the heatsink was literally solid with dust...
I had almost the exact same experience. The old HDD never failed, I just ran out of space on the system partition. Anyway, it was a great excuse to finally get a SSD especially since the price to capacity ratio is now reasonable. ($200/480GB for mine) I also went with 10 and really like it so far.
As for the dust, originally when I rebuilt, I just did a light dusting. Not long after getting 10 up and running, I tried out Minecraft, liked it, and bought it. The problem was after 10 minutes or so of playing, the system would just shut down. My suspicion of overheating was confirmed when I installed a hardware monitor that showed CPU temps of 270F! A thorough cleaning did the trick. The temps now never break 150F and it's much quieter! It's amazing how over the years, you just get used to the fan noise.
If (as often happens) we represent 'spacetime' as a flat sheet (usually black rubber with white grid lines) and the distortion of spacetime by mass as a large ball sitting on the sheet, we can show the effect of gravity by rolling a smaller ball along the sheet, which will accelerate toward the large ball, and (ignoring friction) collide with or orbit.
So far so good.
In this model the flat sheet is suspended in 'nothing'.
But, what if you 'zoomed out' and the sheet was actually curved? Imagine it is sitting on a massive sphere.
If the sphere grows, so the 'universe' will expand.
Indeed if the sheet itself were like the skin of a massive rubber ball, then this effect would be observed if the ball was inflated.
So what we call 'dark energy' could simply be the inflation of whatever it is that 'supports' the universe.
The turtles are sliding down the side of the shell.
This is like a fish trying understand gravity. Maybe the fish would imagine it as constant invisible water flowing downwards. Because the fish brain is created so it can understand and survive underwater environment it does not have the brain pathway to understand dry land.
A curve requires 2 dimensions.
You could plot a curve across the x and y, or y and z, etc
If you read only a single axis coordinates (for instance assign all x values the same and read a curve's Y, it is indistinguishable from a line)
A curve involving the 4th dimension is this:
An object accelerating in a straight line.
Translate axis where X is the distance travelled and y,z =0
Time is experienced differently as it speeds thus the 4th dimension and curve
If you ignore the relativity changes in time, all you see is the straight ray on axis X