Is there any place where I can use a PC? Please check the Rainbow Support Site > Services > Service list > Class/self-study PC (RAINBOW PC). Related articles Can I borrow a PC? I'm experiencing difficulty connecting to the wireless LAN (Wi-Fi) in the classroom. Is there a place on campus where I can print? Are there any necessary preparations for the information and communication environment? Can I submit the Request for Leave of Absence form or Request for Withdrawal from the University by mail?