Five examples of input devices

                                                                                 1. Universal Serial Bus (USB) is a specification to establish communication between devices and a host controller (usually personal computers), developed and invented by AjayBhatt while working for Intel .USB has effectively replaced a variety of interfaces such as serial and parallel ports

2. In computing, a mouse is a pointing device that functions by detecting two- dimentional motion relative to its supporting surface. Physically, a mouse consists of an object held under one of the user's hands, with one or more buttons.

   3 . A keyboard is typewriter which uses an arrangement of buttons or keys to act as mechanical levers or electronic switches. After punch cards and paper tape, interaction via teletype-style keyboards became the main input device for computers.
                                                                   








4.  A device containing a transducer for converting sound waves into electrical signals that can then be amplified, transmitted, and output through a speaker.
               



      

                                           
                                                                                                             5.   A webcam is a video camera which feeds its images in real time to a computer or computer network, often via USB, Enthernet or Wi-Fi.Their most popular use is the establishment of video links, permitting computers to act as videophones or video conference stations This common use as a camera for the web gives the webcam its name.