Check out tutorials and shit
Two good channels that I watch for beat tutorials are Based Gutta and Gunsoww

You can make beats with some programs on the computer they better with actual equipment but it's gonna be expensive 

Karacalla said
People will tell you, you need all this equipment Midi keyboards, MPC ect..ect..and that's cool if you want to do it professionally, but if you just looking to do it as a hobby get a free cracked version of FL Studio or Pro-Tools and each of these have built in MPC's and everything else with in them. 

Also most new age producers have the programs I just suggested, along with analog equipment. Its easy to send Stem files to other producers/artist across D.A.W. platforms if you ever wanted to collab.

Say you make a beat in FL and the person who wants to add something to it has Pro Tools, you could shoot it to them and they would be able to open and add things or master it.  

Actually, tons and tons of Producers use Fruity Loops these days. So many professional rappers are rapping over Fruity Loop beats.

Travi$ Scott's Antidote was made in FL Studio.