Re: Kasooti -V
hmmmmm you are partially correct. lets say YES finally
its Barcode, doesn’t have to be associated with ID card or anything. Barcode in itself
its not mechanical, its not wireless as in radio, its not communication device or wireless communication device for that matter, its present almost everywhere, in your bathroom, bedroom, studyroom, kitchen almost everywhere, yet its not intended to be used there, its most probably ON you, in the cloths you are wearing right now.
its more than 20 years old, it uses laser now most of the time, but not dependent on laser only, can work without laser, it has tangible parts which you do not hold most of the time, rather check out staff holds it and uses it, sometimes u use it urself in supermarkets (remember those price checking machines??) so Queer got it right, though partially : )