LIS-3353 - Math and Instructions

HUGE CONCEPT #1

All computers do is “numbers”

(but, you can store anything in numbers)

other set of slides please


3353-binary.pdf

HUGE CONCEPT #1

ANYTHING IN NUMBERS
yields
HUGE(R) CONCEPT #2

HUGE(R) CONCEPT #2

All computers do is follow a very
precise list of instructions that one or
more people wrote.


What is programming


Changing your lockscreen
Writer/Word/Google Docs
Calc/Excel
HTML/CSS
Bash
PHP/MYSQL/Javascript
Python/Perl/Ruby interpreted/scripted
C compiled
Assembly (00 4E A3 77 8C 0A etc)



Understanding Power



Computers

The smartest and dumbest things in the world.

Teaching the robots to escape

1) If there's a door in arms-reach, exit – you're done, else
2) If you can, take one step forward then goto 1), else
3) Rotate to the left until there's not a wall in front of you
then goto 1)

(this will get you out of any “regular” empty room)

An almost random bit on recursion


In computers, it's actually okay to define something with itself.
PSUEDOCODE!

(this will get you out of any “regular” empty room)


Here we go

Go to the store; if they have 2% lactose free
chocolate milk, then get me a carton.


CODE, again


That was, computers are dumb.


On to: Computers can fake being very smart

The Magic Genie

Recursion, trees, and AI.

AKA

AI is (not) extremely impressive


Let's go..


Making a computer a genius in 4 steps

guess was right (optionally, try to be general or“half-y”?)
- repeat until genius

The Magic Genie

(can be used for evil too...)


What about instead of

“Is your person a DC character?”
you ask real questions about real people?
(more on this later, but this demonstrates why
surveillance is easy and anonymity is hard.)

So then...


AI?

Alan Turing

Alan Turing

Not Alan Turing

How to sound smart..


“Lots of very simple instructions...

can add up to to complex computations.”
“Turing Machine (Turing Completeness)”
(an infinite tape w/ simple instructions)

“Lots of very simple instructions ...

can add up to complex computations.”
“Lambda Calculus”
(mathy way to express the above; this is
literally all you have to know)

What this really means:

Choice of "computer language" is not that important;
(IN THE ABSTRACT)
Most languages (if not specialized)
can do anything any language can do
(that's the point of computers)

What this really REALLY means:


ALL of this is VERY fluid.
That's the point of a General Purpose Machine
To hack, and to find different uses, and
to do things in different ways.

A.I. ARTIFICIAL INTELLIGENCE!

- up for debate but, history tells a lot; I'd
suggest people “move the goalposts” a lot.
“Tests”
- games like Chess
or...

The Turing Test

Simplest expression:
Could a computer (typing/chatting online)
fool a human into thinking it was a human?



Backlinks: FSU Courses:LIS3353:Raw LIS3353 Slides