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28 Jul 2024 16:19:01 EDT (-0400)
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From: Nekar Xenos
Subject: Re: Tango
Date: 28 Jan 2014 12:21:46
Message: <op.xaeqigveufxv4h@xena>
On Tue, 28 Jan 2014 12:27:42 +0200, scott <sco### [at] scottcom> wrote:

>>
http://www.indiegogo.com/projects/tango-pc-worlds-most-powerful-pocketable-dockable-gameable-officeable-pc
>
> Interesting idea with the heat sink design, what would be better is to  
> have a screen and a "low power" mode so you could use it as a smartphone  
> without any docking station.
>
>

It would be nice if the docking station could also take an S4 or G2 and  
change you phone into a PC :)

-- 
-Nekar Xenos-


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From: Francois Labreque
Subject: Re: Tango
Date: 28 Jan 2014 13:00:27
Message: <52e7f03b$1@news.povray.org>

>>> Interesting idea with the heat sink design, what would be better is to
>>> have a screen and a "low power" mode so you could use it as a smartphone
>>> without any docking station.
>>
>> I thought so, too.
>
> Although thinking about it a bit more, why exactly would you want to
> take the same physical PC "core" around with you? With cloud-based
> services and faster internet speeds nowadays is there really a big need
> for this?
>

The dumb terminal connected to a powerful central computer vs. 
distributed computing debate still rages on.

There are times when you need local processing oomphf, and even with 
cloud-based services, the size of the planet has not changed.  If you 
save your files to "the cloud" from your home in europe, they'll 
probably reside on a server in Europe.  Stepping off the plane in 
Singapour and trying to work on those files from the hotel will suck. 
Tremendously.

One of our customers found this out the hard way a few years ago when 
they tried to offshore part of their engineering dept to India, and 
quickly realized that sharing gigabyte-sized CATIA files between 
North-America and India, every day wouldn't work, simply due to the 
network lag.

-- 
/*Francois Labreque*/#local a=x+y;#local b=x+a;#local c=a+b;#macro P(F//
/*    flabreque    */L)polygon{5,F,F+z,L+z,L,F pigment{rgb 9}}#end union
/*        @        */{P(0,a)P(a,b)P(b,c)P(2*a,2*b)P(2*b,b+c)P(b+c,<2,3>)
/*   gmail.com     */}camera{orthographic location<6,1.25,-6>look_at a }


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From: clipka
Subject: Re: Tango
Date: 28 Jan 2014 13:01:57
Message: <52e7f095@news.povray.org>
Am 28.01.2014 12:01, schrieb scott:
>>> Interesting idea with the heat sink design, what would be better is to
>>> have a screen and a "low power" mode so you could use it as a smartphone
>>> without any docking station.
>>
>> I thought so, too.
>
> Although thinking about it a bit more, why exactly would you want to
> take the same physical PC "core" around with you? With cloud-based
> services and faster internet speeds nowadays is there really a big need
> for this?

The cloud service that I'd trust to store my data still has to be invented.

It's going to be a difficult challenge though: The costs should be low 
enough for me to afford it, but at the same high enough to give me 
reassurance that the people know what they're doing and are using 
reliable hardware, software, and contingency procedures.

There's also the problem that I'm making myself dependent on something 
that I have to pay monthly for. I prefer to buy stuff for a fixed price 
and then use it as long as I want / have to.


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From: scott
Subject: Re: Tango
Date: 29 Jan 2014 03:30:58
Message: <52e8bc42$1@news.povray.org>
> There are times when you need local processing oomphf,

So have a standard PC at each location you work, rather than a docking 
station and then physically carrying the CPU/GPU/RAM/HD between each 
location. If you need to transfer a large amount of data in the time it 
takes you to move between the two locations, then take a USB stick.

> and even with
> cloud-based services, the size of the planet has not changed.  If you
> save your files to "the cloud" from your home in europe, they'll
> probably reside on a server in Europe.  Stepping off the plane in
> Singapour and trying to work on those files from the hotel will suck.
> Tremendously.

If you're working in a hotel you're going to be carrying a laptop 
anyway, so the device in the OP is not really any advantage. Besides, 
unless every hotel had that exact brand and model of docking station, 
you'd need to carry that too (and a screen).

> One of our customers found this out the hard way a few years ago when
> they tried to offshore part of their engineering dept to India, and
> quickly realized that sharing gigabyte-sized CATIA files between
> North-America and India, every day wouldn't work, simply due to the
> network lag.

You've done something wrong if you have a single gigabyte-sized CATIA 
file. I expect what they had was a large assembly (consisting of a large 
number of much smaller CATIA files) and were attempting to send the 
entire set of files every day. I've worked somewhere before that did 
that between UK and Japan, but the total assemblies were only <20MB so 
it worked ok (apart from the version control problems...).

However, lots and lots companies work on much larger assemblies across 
multiple sites (eg car and plane manufacturers), so this problem has 
been solved already. Even CATIA itself (and various 3rd party software) 
will allow you to only download the sub-assembly you are working on 
(using simplified representations of large sub-assemblies if needed) and 
then upload only the modified parts when you are done.


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From: scott
Subject: Re: Tango
Date: 29 Jan 2014 03:44:18
Message: <52e8bf62$1@news.povray.org>
>> Although thinking about it a bit more, why exactly would you want to
>> take the same physical PC "core" around with you? With cloud-based
>> services and faster internet speeds nowadays is there really a big need
>> for this?
>
> The cloud service that I'd trust to store my data still has to be invented.

You can always encrypt it before uploading, and hold it on two separate 
services in case one suddenly decides to disappear.

Anyway, if you want to transfer your data on your person (and trust 
yourself not to lose it or get mugged) then why not just a USB stick?


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From: Francois Labreque
Subject: Re: Tango
Date: 29 Jan 2014 09:25:17
Message: <52e90f4d$1@news.povray.org>

> You've done something wrong if you have a single gigabyte-sized CATIA
> file. I expect what they had was a large assembly (consisting of a large
> number of much smaller CATIA files) and were attempting to send the
> entire set of files every day. I've worked somewhere before that did
> that between UK and Japan, but the total assemblies were only <20MB so
> it worked ok (apart from the version control problems...).

Ok fine, I should have written "gygabytes of CATIA files".   It's been 
20 years since I played with CATIA, so my knowledge of the file 
structure is somewhat shady.

The design of this setup had the Indians accessing the files (on servers 
that were in Canada), verifiy that they conformed to various standards, 
flag non-conformities for review, and then move to the next file.

A 20MB file is 16M bits.  At 1500bits per packet, it means ~ 110,000 
packets.  If the round trip takes 200-400ms per packet, then it takes 
20,000 seconds, or more than 6 hrs, ignoring link congestion and other 
technicalities, for someone to open the file from India.

Which meant that an Indian could only review 2, or maybe 3 files per 
day, making this outsourcing deal completely worthless as the 
productivity of an Indian worker paid $15/day was worse than that of a 
Canadian intern paid $15/hr.

that why I said that "The Cloud" may help one manager work on his 
monthly report while on the train back home in the evening, and 
technically allows you to access your files from anywhere, but it 
doesn't solve everyone's problem.

>
> However, lots and lots companies work on much larger assemblies across
> multiple sites (eg car and plane manufacturers), so this problem has
> been solved already.

I know that.  For instance, the suspension components of the Ferrari F1 
cars is (used to be?) designed in my building in Montreal, and they had 
no issues with being on a different continent than the rest of the 
Scuderia staff.


-- 
/*Francois Labreque*/#local a=x+y;#local b=x+a;#local c=a+b;#macro P(F//
/*    flabreque    */L)polygon{5,F,F+z,L+z,L,F pigment{rgb 9}}#end union
/*        @        */{P(0,a)P(a,b)P(b,c)P(2*a,2*b)P(2*b,b+c)P(b+c,<2,3>)
/*   gmail.com     */}camera{orthographic location<6,1.25,-6>look_at a }


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From: clipka
Subject: Re: Tango
Date: 29 Jan 2014 09:49:28
Message: <52e914f8$1@news.povray.org>
Am 29.01.2014 15:26, schrieb Francois Labreque:

> A 20MB file is 16M bits.  At 1500bits per packet, it means ~ 110,000
> packets.  If the round trip takes 200-400ms per packet, then it takes
> 20,000 seconds, or more than 6 hrs, ignoring link congestion and other
> technicalities, for someone to open the file from India.

That's why any sane file transfer protocol sends more than just one 
packet before waiting for an acknowledge.


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From: scott
Subject: Re: Tango
Date: 29 Jan 2014 09:52:33
Message: <52e915b1$1@news.povray.org>
> A 20MB file is 16M bits.  At 1500bits per packet, it means ~ 110,000
> packets.  If the round trip takes 200-400ms per packet, then it takes
> 20,000 seconds, or more than 6 hrs, ignoring link congestion and other
> technicalities, for someone to open the file from India.

That's one sloooooow connection - luckily nowadays "the cloud" is a lot 
faster, IME companies specialising in that type of engineering 
outsourcing work usually have very fast connections (they would have 
received a 20MB file before you could call them and say "hello").


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From: Francois Labreque
Subject: Re: Tango
Date: 29 Jan 2014 20:35:46
Message: <52e9ac72$1@news.povray.org>

> Am 29.01.2014 15:26, schrieb Francois Labreque:
>
>> A 20MB file is 16M bits.  At 1500bits per packet, it means ~ 110,000
>> packets.  If the round trip takes 200-400ms per packet, then it takes
>> 20,000 seconds, or more than 6 hrs, ignoring link congestion and other
>> technicalities, for someone to open the file from India.
>
> That's why any sane file transfer protocol sends more than just one
> packet before waiting for an acknowledge.
>
Yes, and even accounting for that, with the TCP window size of 16k of 
the AIX servers in question, you have to receive an ACK every 12-13 
packets or you run the risk of exceeding your window size and having the 
source start retransmitting.


-- 
/*Francois Labreque*/#local a=x+y;#local b=x+a;#local c=a+b;#macro P(F//
/*    flabreque    */L)polygon{5,F,F+z,L+z,L,F pigment{rgb 9}}#end union
/*        @        */{P(0,a)P(a,b)P(b,c)P(2*a,2*b)P(2*b,b+c)P(b+c,<2,3>)
/*   gmail.com     */}camera{orthographic location<6,1.25,-6>look_at a }


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From: Francois Labreque
Subject: Re: Tango
Date: 29 Jan 2014 20:42:10
Message: <52e9adf2$1@news.povray.org>

>> A 20MB file is 16M bits.  At 1500bits per packet, it means ~ 110,000
>> packets.  If the round trip takes 200-400ms per packet, then it takes
>> 20,000 seconds, or more than 6 hrs, ignoring link congestion and other
>> technicalities, for someone to open the file from India.
>
> That's one sloooooow connection - luckily nowadays "the cloud" is a lot
> faster, IME companies specialising in that type of engineering
> outsourcing work usually have very fast connections (they would have
> received a 20MB file before you could call them and say "hello").

200ms from North America to India is extremely fast.

See for example, tracerouting from my home PC to the Indian govt web site.

C:\Documents and Settings\Francois>tracert india.gov.in

Tracing route to india.gov.in [164.100.129.97]
over a maximum of 30 hops:

   1    <1 ms    <1 ms    <1 ms  192.168.1.1
   2     8 ms    10 ms    17 ms  10.21.136.1
   3    16 ms    12 ms    10 ms  216.113.124.170
   4    22 ms    27 ms    23 ms  216.113.123.249
   5    20 ms    21 ms    32 ms  eqix-ny9.bhartiairtel.com [198.32.118.170]
   6   292 ms   295 ms   295 ms  182.79.255.249
   7   302 ms   295 ms   293 ms 
ABTS-North-Static-218.176.144.59.airtelbroadband
.in [59.144.176.218]
   8     *        *        *     Request timed out.
   9     *        *        *     Request timed out.
  10     *     ^C
C:\Documents and Settings\Francois>

-- 
/*Francois Labreque*/#local a=x+y;#local b=x+a;#local c=a+b;#macro P(F//
/*    flabreque    */L)polygon{5,F,F+z,L+z,L,F pigment{rgb 9}}#end union
/*        @        */{P(0,a)P(a,b)P(b,c)P(2*a,2*b)P(2*b,b+c)P(b+c,<2,3>)
/*   gmail.com     */}camera{orthographic location<6,1.25,-6>look_at a }


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