Hello guys, I'm a Computer Science from the Philippines and I'm under pressure of developing a system that would detect if peripheral devices(USB mouse/kb, PS/2 mouse/kb) and LAN connection is removed/unplugged from the system unit. The program would then tell the IT office(located one floor above the laboratory) that a device/internet connection is lost.At a first look, it looks simple and easy. The problem is, i didn't have any background about signals or hardware. I could say that I'm very proficient with programming languages and developing software applications. I'm currently looking for some ideas or opinions, maybe some useful tips and tricks to get this thing done. And so I could graduate and receive my Undergraduate degree.I'm looking forward for your great cooperation. Any ideas and suggestions are welcome, please feel free to post. THANK YOU VERY MUCH!