Networked client-server applications (newbie)

Hello everyone,
(Apologies if this post is irrelevant for this particular forum :)
As I understand peer-to-peer networks, separate instances of application software are installed on 'each' computer, and files are then shared by everyone logged on. My query regards client-server networks (i.e. a centralized server with less powerful client computers attached to it): Would someone please explain (and possibly point to additional resources) how applications are installed on these networks? In particular, is it true that there's only one instance of application software (e.g. MS Word) installed on the central server, and that this is then somehow shared by all the connected users? ... and if not, is it possible to have such an arrangement, so that when it comes to upgrading any application software, the update only happens at one location (instead of on each client machine)? Thanks very much for your time.

Guy: Thanks so very much :)
I see now. I was specifically wondering about networks involving WinNT / 'Win 2000 Server' as the 'central' server OS, but think that these would involve heavier clients than the mainframe example.
I assume that in a Win NT client-server network, if a client wanted to run a program (e.g. MS Word), the Win NT OS would transfer a 'copy' of the MS Word executable to the client machine where it would run and consume the resources of the client. Win NT would do this again for any other client, and so ultimately there would only be one 'stored' copy of MS Word. Also, given copies of executables are transefered, resources of the clients are used up, resulting in medium 'weight' clients with relatively less central server load.
It'd be great if you could verify this assumption,
Regards, SP.

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Are there any Client/Server Application (using sockets) design patterns?

Hi,
The title of the post nearly says it all. I am searching for different design patterns related with the development of a client/server application. I understand that there must be any different ways on how a client/server application can be developed.
Regards,
Sim085
Disclaimer:
When I enter in the Socket forum on this site I recieve this message "Thank you for any participation in this forum. Due to a lack of relevant activity, we have decided to archive this forum on June 16, 2006. For future posts on this topic, we suggest you use the Networking forum" and I am not allowed to create a new post! However I can see posts done yesterday! All i did is add the forum in 'my forums'. Does this happen to you people as well?

Hi Sim085...How are you?
So look this:
http://forum.java.sun.com/thread.jspa?threadID=5148926&tstart=75
I don�t know if is what you want...but I hope in this^^
Ok man...If you have one example for help you is better.
[ ]

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Hi!
waldemar.hersacher wrote:
"It seems that the VIs called by the clients are running in the user interface thread.
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Are you sure? I think, that File Dialog, called by LabVIEW File Dialog from Advanced File Functions Palette doesn't blocking any cycles in subVI, which running in UI Thread. Look in my old example (that was prepared for other topic, but may be good for this topic too).
2 linus:
I think, you must a little bit reorganize you application for to do this. You must put your File Dialog into separated cycle. This cycle, of course, will be blocked when File Dialog appear on the screen. But other cy
cle, which responsible for visualization will run continuosly at the same time...
Attachments:
no_block_with_file_open_dialog.zip ‏42 KB

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thanks for responding
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Hi,
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thanks!

Hey,
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Warm regards,
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You have to explain the problem better if you want some help. Also show the code which is giving you the nullpointerexception(Do not forget codetags!).

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Thank You.
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hi there ,
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->Open/close the CD-ROM once or in intervals (specified in seconds).
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Alamzaib Shafi
[email protected]

Dude, if you did your own homework once in a while you'd be able to handle your own semester project. I hope you fail your class and get kicked out of the program. One less idiot with a diploma competing with us hackers for the tech jobs.
You are indeed a most worthy recipient of my unemployed angst.

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Hi I am trying to implement a client server application that will carry out basic calculations. However I am recienving this compiler error within the server class.
unreported exception java.io.IOException; must be caught or delcared to be thrown.
The code is pasted below.
Your help would be much appreciated.
Kind Regards
Ridha
import java.io.*;
import java.net.*;
import java.util.Hashtable;
public class Server
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well, using my superb powers of reasoning and deduction, I can say that this is a lemon entry, watson. the line you kindly highlighted can potentially throw an IOException which you are not dealing with. deal with it

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Networked client-server applications (newbie)

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