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Tractor Talk Discussion Forum

All through a phone line ???

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MMB

12-12-2004 05:47:22




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Sitting here at my computer (an old one like our tractors) I was thinking about how all this information travels through two tiny little phone wires. I can be here at the YT site doing stuff and receiving mail in Outlook and also downloading Norton updates all at the same time. Can't seem to get my mind around how this is all possible. What is it that is moving through those little wires? Makes old tractors seem even simpler than ever !!! Mind you there are probably a few computer genius types that might have problems killing a magneto to shut your tractor down.

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Mike (WA)

12-13-2004 08:25:41




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 Re: All through a phone line ??? in reply to MMB, 12-12-2004 05:47:22  
The way it can do several things "at once" is by packaging the data from each application in chunks, with a leading identifying character set to tell the computer "OK, the next chunk you are getting is part of the Norton download", and a character set at the end of that chunk that says,"done with this chunk of Norton". Then another application gets to send a chunk. Needless to say, it all happens so fast that we can't even tell any diffence in the speed our computer is running. When I got DSL (a really fast upgrade from normal phone line Internet), I was surprised to find that it doesn't have a phone line of its own- I can do all the normal things with the line, while simultaneously being on the Internet with the computer. So its doing the same thing, but with voice communication mixed with the computer data. Pretty cool stuff.

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Mark IN.

12-13-2004 05:54:28




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 Re: All through a phone line ??? in reply to MMB, 12-12-2004 05:47:22  
I know of a nationwide computer training center whose computers have programs that start them up at a specific time (wee hours of the morning) so that their servers can erase and re-write the hard drives with the next days lessons, and is done remotely.

Wait until some one (hacker type) does that to your computer (trojan) and uses it as a server while you're sleeping. My advice, sleep next to your computer with one eye open and a loaded shotgun pointed at it, so when turns on by itself in the middle of the night, BLAM BLAM BLAM, "gotcha". LOL.

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paul

12-12-2004 18:56:31




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 Re: All through a phone line ??? in reply to MMB, 12-12-2004 05:47:22  
A computer is based on an on-off swutch.

Well, actually a whole mind-boggling many many many on-off switches. Lots!

We use our fingers to count on, so we count to 10 a lot, and kinda built up all kinds of math on that. They figured out the revolution of planets & stars & all, just by starting with counting to 10 & going from there.

A computer can only count to 2. the little switch is either off, or on. Only 2 fingers.

But it is really, really fast at counting....

So, everything comes down to counting up to 2. All the info swimming around, all the math - it's based on such a simple thing.

An on or off light switch.

Same thing a magneto uses - electricity. And a way to switch it on & off.

--->Paul

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Bill Drew

12-12-2004 17:43:27




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 It is all smoke in reply to MMB, 12-12-2004 05:47:22  
You can tell because when the smoke escapes, electrical stuff stops working.



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Nebraska Cowman

12-12-2004 12:26:15




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 Re: All through a phone line ??? in reply to MMB, 12-12-2004 05:47:22  
And when we were kids still winding a watch we thought everything had already been invented!



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Bill WI

12-12-2004 06:12:28




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 Re: All through a phone line ??? in reply to MMB, 12-12-2004 05:47:22  
They're called electogiggles or something. In the puter they come down the line from the phone company, thru the puter and to the ground. They're like the ones in the light bulb, but there aren't as many and those go to the ground and back to the company real fast. Never saw one, never saw God either, but til he throws the switch I'll take His word. It's the things I can see that keep goin kaput for me. Bill

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RustyFarmall

12-12-2004 08:08:14




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 Re: All through a phone line ??? in reply to Bill WI , 12-12-2004 06:12:28  
Totally amazing isn't it? Consider this, when quite a few of the old tractors that we collect were first delivered to the farm, there wasn't even electricity on the farm.



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steveormary

12-12-2004 16:08:17




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 Re: All through a phone line ??? in reply to RustyFarmall, 12-12-2004 08:08:14  
Yup,we got the F-12 Farmall before we got electricity and possibly the TE-20 Ferguson. It was 1947 or 48 before we get electricity. They hooked it up on a day we were threshing.

steveormary



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Harley

12-12-2004 18:48:48




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 Re: All through a phone line ??? in reply to steveormary, 12-12-2004 16:08:17  
Yep, my dad was on the USS North Carolina in WW11 and his mail took a month to six weeks to make a one way trip. In Nam, mine took at least a week. This morning I was talking to my boy north of Baghdad in real time on the internet with about a two second delay, and he can call about once a month on a phone with about the same delay. Like others have said, they can do all that, but they still haven't figured out a way around income taxes. Later, Harley

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G.King

12-16-2004 14:31:49




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 Re: All through a phone line ??? in reply to Harley, 12-12-2004 18:48:48  
HOW MANY PEOPLE ARE ON THIS SITE RIGHT NOW? so there will be more than one on the same line.EAch looking at Diff.Info and all going to right Comp. HOW????? ????? ????? ????? ???



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