Have you tried connecting another keyboard? Is the laptop still under warranty? If so, you might be able to get a replacement keyboard if that's the problem.
Computer - Introduction to buses A bus, in computing, is a set of physical connections (cables, printed circuits, etc.) which can be shared by multiple hardware components in order to communicate with one another. The purpose of buses is to reduce the number of "pathways" needed for...en.kioskea.net/pc/bus.php3
Bluetooth - Introduction Bluetooth is a wireless personal area network technology (WPAN for short), a low-range wireless network technology used for linking devices to one another without a hard-wired connection. Unlike the IrDa technology (which uses an infrared...en.kioskea.net/bluetooth/bluetooth-intro.php3