Input Devices

Games Controller

A game controller is a device used with games or entertainment systems to provide input to a video game, typically to control an object or character in the game. A controller is usually connected to a game console or computer by means of a wire or cord, although wireless controllers are also widespread. Input devices that have been classified as game controllers include keyboards, game pads, joysticks, etc. Special purpose devices, such as steering wheels for driving games and light guns for shooting games, are also game controllers.

 

 

 

 

 

 

Touch Screen

A touchscreen is a display that also serves as an input device. Some touchscreens require a proprietary pen for input, though most modern touchscreens detect human touch. Since touchscreen devices accept input directly through the screen, they do not require external input devices, such as mice and keyboards. This makes touchscreens ideal for computer kiosks, as well as portable devices, such as tablets and smartphones.

 

 

 

 

 

 

Microphone

 

 All microphones are the same because they pick-up sound. They have a diaphragm like a speaker, in fact all a microphone is, is the reverse of a speaker and vice versa. In the case of a microphone, sound waves move a tiny plastic cone across a magnet which produces voltage, It is read and amplified and sent to a speaker. The speaker receives the voltage turns in into magnetism, which moves the speaker coil and turns it back into sound. You talk across a microphone not directly into it, because the diaphragm is sensitive to pressure, sound or air and can easily distort.

 

 

 

Graphics Tablet

A graphics tablet or digitizer is a computer input device that enables a user to hand-draw images and graphics, similar to the way a person draws images with a pencil and paper. These tablets may also be used to capture data or handwritten signatures. It can also be used to trace an image from a piece of paper which is taped or otherwise secured to the surface. Capturing data in this way, either by tracing or entering the corners of linear poly-lines or shapes is called digitizing.

The device consists of a flat surface upon which the user may "draw" or trace an image using an attached stylus, a pen-like drawing apparatus. The image generally does not appear on the tablet itself but, rather, is displayed on the computer monitor.