Hi folks We recently received a new piece of equipment for the lab, which has a network interface. Since I already have myCocoaSoftware for the analysis, why not try to extend this to include measurements as well. I have a list of commands in the form of text strings from the supplier. These commands have to be send to the instrument over the network. I also have to receive the response. Since I have never done any network programming, I am asking where best to start? Can I get away with high level cocoa API's, or do I have to delve into the BDS layer, with sockets and such? Which API (or tutorial) is the best starting point? Most of what I have found on the web is about networking between 2 computers and writing server and client software. I also know the IP address. Thanks! PS. yes, I could use a windows computer, and the included software. But that wouldn't teach me anything about network programming, woud it?