Network Calculator for Palm is a Network & Internet::Communications software developed by TA Cybernetic Solutions. After our trial and test, the software was found to be official, secure and free. Here is the official description for Network Calculator for Palm: Network Calculator will calculate what subnet mask to use to get the required number of networks or nodes. You'll need to enter the network portion of a TCP/IP address and the required number of sub-networks or nodes. When you have entered these values,Tab on 'Calculate' and it will list the number of sub-networks, the number of nodes per sub-network and the subnet mask to use. you can download Network Calculator for Palm free now.