Wikipedia, how does it work? what if 100 people edit an article, how does it choose what to show??

what happens it basically includes everything. When you edit you can cut out and put in bits to the article when you are done it then sends your article to the server and then sends it to anybody who visits that article. There are alsi mods who will look through articles and take out the stuff that is wrong to make sure that you get the right info.

You will always see the current version that's immediately visible after saving your edit. If 100 people edit an article at the same time, only the first edit will be saved, the 99 other editors get an edit conflict with the information that there is a newer version of the article. Let me add some words to bambamitsdead's comment above: Every user - admin or not - can see previous versions of an article and restore them. Only versions that were explicitly deleted by another administrator are visible for administrators only.

how can 100 ppl edit an article at the same time???? they may chose the first one. but i guess if its appropriate then it is shown. but wikipedia doesnt really monitor wat info is displayed so i guess it is first come first served.... and it will keep changing 100 times lol.

All the wiki systems I've used *just* show the last edited version by default. If you've got the right access you can go and look at previous versions and revert to them. Wikipedia is managed... so if you modify an article to reduce it's value (like fill it with spam for instance) the moderators are likely to put the original back.

Maybe it picks the best one or there is somone heads it to edit the overall input