5 LATEST INPUT DEVICES
WHAT ARE INPUT DEVICES
Any machine that feeds data into a computer. For example, a keyborad is an input device. Input devices other than the keyboard are sometimes called alternate input devices.
Trackballs are a mouse variation, essentially a mouse lying on its back. Because the device is stationary, it does not require as much space on your desktop. The ball moves as you rotate it with your thumb, your fingers, or the palm of your hand; this saves wrist fatigue and reduces hand and arm movement. Trackballs are especially popular with those experiencing problems with arthritic hands. Trackballs come in various sizes and shapes.
Touch Pads Pointing sticks are the short red sticks that are positioned in the middle of the keyboard on some laptop computers. These devices are pressure-and-direction sensitive, so the cursor moves in the direction that the pointer is pressed; the cursor moves faster when more pressure is applied. Touch pads can be found in both laptops and desktop computers. They can also be purchased as an add-on device that plugs into the computer like a mouse. By moving and tapping your finger on the pad, you can relocate the pointer on the display screen and simulate a mouse click. Touch pads can be valuable for computer users dealing with hand coordination problems.
Camera as an input device? Well, it is. A digital camera stores images digitally rather than recording them on film. Once a picture has been taken, it can be input or downloaded to your computer where it is stored for later use. The concept is the same whether you take a film photo and then use your scanner as an input device or take a photo with your digital camera and use the camera itself as an input device. In both cases, the image is input into the computer.