hi my name is Madison Maxie I have a
company called Lamia and we focus on
making smart fabrics for smart clothing
and smart soft good paddocks the sky's
the limit when it comes to textiles my
name is Daniel apple stone and I'm CEO
of other machine company we build a
desktop milling machine a milling
machine takes a rotating cutting tool
and moves it through material to create
a 3d object under the hood all computers
do the same four basic things they input
information store and process the
information amen output information each
of these things is done by a different
part of the computer there are input
devices that take input from the outside
world
and convert it into binary information
there is memory to store this
information there's a central processing
unit or CPU where all the calculations
are done and finally there are output
devices that take information and
convert it into a physical output let's
talk about input first computers can
take many different types of input like
the keyboard of a computer the touchpad
of a phone a camera a microphone or a
GPS but even the sensors on a car a
thermostat or a drone are also different
input devices now let's look at a simple
example of how input travels through a
computer and becomes output when you
press a key on your keyboard let's say
the letter B the keyboard converts the
letter to a number that number is sent
as binary ones and zeros into the
computer starting from this number the
CPU calculates how to display the letter
B pixel by pixel the CPU requests
step-by-step instructions from memory
which tell it how to draw the letter B
the CPU runs these instructions and
stores the results as pixels in memory
finally this pixel information is sent
in binary to the screen the screen is an
output device which converts the binary
signals into the tiny lights and colors
that make up what you see this all
happens so quickly it feels
instantaneous but to display each letter
a computer runs thousands of
instructions starting from the moment
your finger presses the key point in
that example the output device was the
screen but there are many different
types of output which take a binary
signal from the computer and do
something in the physical world for
example a speaker will play sound and a
3d printer will print an object output
devices can also control physical motion
like a robotic arm the motor of a car or
the cutting tool of the milling machine
that my company makes new types of
inputs and outputs let computers
interact with the world in entirely new
ways this has been helped out by
improvements to the speed and size of
the memory and CPU the more complicated
task is and the more information that's
input or output the more processing
power and memory a computer needs typing
letters on a screen may be easy but to
do complicated 3d graphics or record a
high-definition movie modern computers
often have multiple CPUs to process all
that information and many gigabytes of
memory to store it
no matter what it is you want to do with
the computer every single action is
about inputting information from the
physical world storing and processing
that information and getting some output
back into the physical world
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