Most households now own a digital camera
Even the cameras built into a camera phone can take GOOD pictures, and even the most expensive DSLRs can take POOR pictures - it's really up to the PHOTOGRAPHER to make the most of the equipment they're using.

The parts and terms important to a CAMERA include:
  • Lens
  • CCD (Charge Couple Device)
  • Aperture
  • Shutter
  • Resolution
  • Zoom (Optical vs Digital)

Here's a link to the Comm Tech Photography wiki