Keyboard 35On a Dell laptop computer, there are generally three lighting statesavailable:• Full keyboard/touchpad brightness• Half keyboard/touchpad brightness• No lightingPressing the and the right-arrow key toggles between the threelighting states.NOTE: Backlit keyboard may not be available on all computers. Seethe specifications of your computer for more details.Keyboard Connection TypesYou can connect a keyboard to your computer using a wired or a wirelessconnection.Wired: The keyboard is connected to the computer using a cableand does not require additional power source, such as batteries. Theconnection can be using any of the following:• USB – Used in all current generation computer.• PS/2 port – Used on older computers.Wireless: Keyboard is connected to the computer using wireless signals.This connection method reduces cable clutter and gives you the flexibilityto use the keyboard from a more comfortable position within a fewmeters from the computer. Such keyboards require batteries to operateand some wireless keyboards have rechargeable batteries. The wirelessconnection can be any of the following:• Radio Frequency (RF) – An RF receiver is connected to the USB porton the computer.• Bluetooth – The keyboard connects to the computer using theBluetooth adapter already installed in your computer or using aBluetooth adapter connected to an USB port of your computer.
