webcams

    Webcams: 

                           webcams is also called PC video camera. it is a type of digital video camera that can be used the following purposes:

  

capture video and still images

Send emails with video attachments 

Make video telephone calls on the internet etc. 

                                     Webcams are normally placed on the top of the monitor.  Most notebook  computers have built-in webcams can be attached to the computer through USB port or fire Wire port.                                    

 

                                       it is normally used to show any work in progress. some website use live webcams to display still picture at a specified time intervals such as 20 seconds. 

Video  Compression :

                                            The process of  minimizing the size of video  clips  video compression.  video compression recognized  that only a small part  of a video  changes form frame to frame. video compression software store the first frame completely. video decoders is a card that decompresses video  data. it is more effective than compression software. 

Video   Conferencing: 

                                             Video conferencing  is a  meeting  between  two  or more  people  over a  network or internet . the people sitting  at  distant  location can transmit audio and video data. When one  participant  speaks the other participant hear his  voice. 

          video conferencing also provides whiteboard. it is a window on the screen to display notes and drawing on the screen of  all participants. video conferencing is a cost- effective  way to conduct  business meetings trainings  educational  classes  etc. 

                                                             

                                  Scanners and Reading Devices 

               coming soon......