many unanswered questions here, first, do you have permission to do so? Second, who are you going to connect to?
NOTE:If not connected to the computers, the admin must have a reason.
Just a breif expl, even if you had another nic, each other pc would need the same, plus wireless or wired configuration and be in a (workgroup), not server type network. This may add up in price not to mention your having permission to do so. My answer may be a bit scrambled here but I can't see someone in a work environment being able to do this at work unless you are the admin which I doubt since the admin would know this answer already. Lucy, you goss some splainin ta do.
My office PC is connected to a network managed by a server.this network connects my PC to other departments of our company but not connected to other PCs in our department. Could I create another network for my PC by installing an additional Network Interface Card. Could my PC handle two networks at a time?