bittertruth,

I don't know what you mean to say but when someone says 100 user at same time means 100 users at a given second.

Which means 100x60x60 = 360000 users per hour

which means 360000x24 hrs = 8,640,000 which is 8 million users per day. 

 

An average site should not have 1-2 users at same time hitting the server. So, 100 at same time is a lot.