What is a "404 error"

[Finn]

While trying to DL the planes for the new "aces high" campaign, I get this error at Mercy's version of the P-47D. the link is broken, I think, but what IS a 404 error? The link I follow is this
http://www.sim-outhouse.com/downloads/download.php?lloc=downloads&FileID=13452
The same goes for Copley's P-38 pack at http://www.combatfs.com/archive_ftp/.../p38tpcfs2.zip Try for yourself.
Finn

 

[sc7500]

Long and Short Story

First, the long:

http://www.pcmag.com/encyclopedia_term/0,2542,t=404+error&i=37106,00.asp

Then the short:

Definition of: 404 error: The HTTP error message returned to the browser by the Web server when a requested Web page is not available

In other words, the page can't be found.
SC

 

[Finn]

WOW that's a beautiful and total answer in just 5 minuttes - impressive and just says all about the skills of the users of this forum. Thanks - I am deeply impressed.
Finn:salute:

 

[Jean Bomber]

Here a link about this damned 404 terror

http://www.sim-outhouse.com/sohforums/showthread.php/33572-S.O.S.-Have-Lost-the-ShipYard