Digital cameras were an improvement on the cumbersome film based cameras which were in use earlier. The basic technology behind the digital camera is a program and a light sensitive device. This light sensor is normally a CCD or Charge Coupled Device an… more »

You should pick the size of your TV set in respect to the size of your room and the distance between your TV set from the couch (or any other place where you're going to sit while watching it). Most TV manufacturers actually provide 'standard charts' wi… more »