Apache hardware requirements

I've run a 1.x version before on a 486 running Linux with 16MB...
I'm running 2.0.58 on a few servers and it's using between 9-25MB of RAM, excluding child CGI processes.
A Pentium 2-class CPU should be enough to saturate a 100Mbit connection with static content.
 
Yep, they're very minimal. Minimum requirements should be based on what you want to do with it, and how hard you want to push it.

If you need to scale hardware according to traffic - more traffic spawns more processes (depending on the configuration e.g. prefork/worker) - then you'll require more memory. If you're running intensive applications, like PHP scripts, then you need to scale for more CPU power. That's a very general rule though.
 
To be honest, I'd see it as "if your hardware can run the operating system (be it Windows or *nix) then it will run Apache just fine". As has been stated, unless you start getting too trigger-happy with heavy loads that rule should stick.
 
They probably don't supply them. As has been said, it depends on what you want to do with it. Maybe if you give us an indication of the type of application and traffic then we can help?
 
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