Logistics
Midterm
- Tuesday, October 30 during class in STLC 115
- Covers first five weeks of lecture
- Closed note, closed book, reference sheet will be provided
Plan for Today
- High-Level Course Review
- Go Over Reference Sheet
- Examples
The Story So Far...
- Computer Hardware
- Data and Storage
- Introduction to Code
- Artificial Intelligence
- Theory
The Story So Far...
- Computer Hardware
- Data and Storage
- Introduction to Code
- Artificial Intelligence
- Theory
Computer Hardware
- Strengths/Weaknesses of Computers
- Introduction to Code (and bugs!)
- Parts of a Computer
- Machine Code
- Operating System
- Programming Languages
- Open Source
Introduction to Hardware:
Parts of a Computer
Computer Abstractions
The Operating System
- Starts running when the computer "boots up"
- Manager/supervisor
- Starting/stopping programs
- Manages RAM, persistent storage, and other shared resources between programs
- Can run multiple programs at once ("sandboxing")
- Allows a computer to change over time (updates)
- Other responsibilities:
- File system
- Manages windows
- Some basic programs
The Story So Far...
- Computer Hardware
- Data and Storage
- Introduction to Code
- Artificial Intelligence
- Theory
Data and Storage
- Representing and Storing Data
- Compression
- Images
Pixels
- Pixel: one "cell" of an image
- Each pixel is one color
- Corresponds to one cell in CCD
- Pixels are stored in a grid:
The Story So Far...
- Computer Hardware
- Data and Storage
- Introduction to Code
- Artificial Intelligence
Introduction to Code
- For Loops
- If Statements
- Combining Conditionals
- Image Filters
- Spreadsheets and Data
The Story So Far...
- Computer Hardware
- Data and Storage
- Introduction to Code
- Artificial Intelligence
- Theory
Artificial Intelligence
- Machine Learning
- Natural Language Processing
- Artificial Vision
- Robotics
AI: A Brief Overview
- Input: data
- Output: model used to make predictions
- Predictions make it seem as if the computer is thinking
- Makes guesses about new data
The Story So Far...
- Computer Hardware
- Data and Storage
- Introduction to Code
- Artificial Intelligence
Reference Sheet
Introduction to Code: Bugs
Two types: syntax and logic errors
Adding a Border
Tracing Through Code