VLAN 3COM AND CISCO SWITCH

I need to connect to subnets together via two switches. One is on a 3com 3870 and the other on Cisco Catalyst 2950xl. It appears the switches use different terminology. I have read thru lots of documentation regarding Vlan, Bridging, Vtp, etc? I think the more I read the more I get confused.

What I want to do is join two switches which are on two different subnets. I want switch A to access Switch B and visa versa.

How do I go about doing this? What settings do I need? Do I need ACL?

Switch a = 10.0.0.0 255.0.0.0 3com 3870
Switch b = 192.168.1.0 255.255.255.0 Cisco 2950xl

I would appreciate anyone?s input on this.