Webcam: Its just like a camera except
that it has even smaller microscopic
lenses that project a light out either in in
real time or in the past (video chat).
Controller (Xbox or PS4): The
controller is the primary user
interface for the PlayStation,
Mouse: Computer mouses use a light source
to guide the arrow on the computer and
programmes it to either click or hold a certain
tab or link (websites).
Bar code scanner
Wireless card machine
Touch-screen platform: A special
chip is placed inside of the
platform which figures out the
coordinates on where you
touched the screen.
Speaker: A quick current of fluctuating electricity is
pumped into an electromagnet which is then pushed
through a coil and comes out in sound-waves through
Calculator: An encoder processes a
number-when pressed- and then shows
that number or symbol onto the the
small screen. There is a small device
inside the calculator which is called a
transistor. this makes a certain formula
come out as an answer(eg 4*5=20).
to a PC or
Computer Screen: Huge pixel waves surf
through a 'Cathode Ray Tube' (CRT) which is
then neatly positioned on billions of small
Stereo wires transport the
required sounds to both
speakers (the ear buds)
from the computer,
phone and TV.
Projector: A very bright light
shines into a big LCD cap
which comes out as an
enlarged image or video
TV: Millions of tiny bright dots,which
are called pixels, are fused together
through millions of small hexagonal
lenses which then make a full image.