Introducing the OmniBook Taking Inventory OmniBook—Back View 23. Infrared port. Windows NT 4.0 does not support infrared communication. Use this port for wireless data transmission between the OmniBook and another computer or a printer with an infrared port. You must install infrared drivers. 24. Kensington lock slot (security connector). 25. Parallel port (LPT1). Use this port for a parallel printer, other parallel device, or to connect the floppy disk drive externally. 26. Serial port (COM1). Use this port for a serial mouse, a modem, a serial printer, or other serial device. 27. External monitor port. 28. Docking port. 1-15