LECT: topics:
A L G O R I T H M S
1 introduction
what is computer science
1000-level courses
2 more formal definition of algorithm
example algorithms
3 more example algorithm
stable marriage algorithm
proof that stable marriage algorithm works
HW 0 DUE
4 spreadsheets
more algorithms
linear search algorithm
find largest algorithm
primitive operations
5 another example algorithm
personal reasons to take the course
binary numbers
lightbulb puzzle
HW 1 (Spreadsheet) DUE
H A R D W A R E
6
converting from base 2 to base 10
bytes
bits as voltage
discrete vs continuous
7 boolean logic
"This statement is a lie."
truth tables
logic gates - how build with transistors
abstracting from design details
compare-for-equality circuit, abstraction thereof
8 digital circuits
decoder and multiplexor circuits
HTML
9 Stinky
full adder circuit!
10 intial intro to computer organization
11 computer hardware song: "Digital Love"
intro to computer organization
HW 2 (html and Stinky) DUE
12 more computer organization
13 operating systems
14 machine language
database queries with Unix shell pipelines
P R O G R A M M I N G
15 finish database queries
Java intro: compiler, source code
syntax versus semantics
midterm review
MIDTERM EXAM March 9
16 midterm solutions
more Java examples: loops
HW 3 (databases) DUE
17 more loops
nested conditionals
18 guess the number -- binary search
guess the animal (20 questions)
prime numbers
complexity intro
19 bubble sort
debugging rules of thumb
debugging song
20 nested loops
21 more nested loops
complexity/efficiency of algorithms
HW 4 (Java) DUE
Info about HW5: Othello -- requires nested loops
T H E O R Y A N D A R T I F I C I A L I N T E L L I G E N C E
22 Guest lecture on anomoly detection by Eleazar Eskin
23
review technical info about HW5's Othello
How to access the board.board array
nested loops
24 more nested loops
intro to computational models
Computability: Turing Machines and The Halting Problem
25 Recursion
Mergesort -- faster than Bubble sort
"Little Harmonic Labyrinth" story
Stinky fractals -- Sierpinsky's triangle
26 Life (cellular automata)
online demo
Special bonus: it is Turing-complete!
meta
pi
27 Leftover recursion:
online demos of sorting algorithms
summary of topics and themes of the course
final exam review
HW 5 (Java) DUE
FINAL:
COMS W1001 001 INTRODUCTION TO COMPUTERS Siegel
May 9 TUES HAV 209 900 AM 1200 PM
email: evs at cs dot columbia dot edu