CS208 Introduction to Computer Systems
Friday, 22 September 2023

+ Queues debrief?

+ Data representation
- bits
- bytes
- bases 2 (binary), 10 (decimal), 16 (hexadecimal)
- let's write a few numbers for practice

+ Data representation: characters
- ASCII
- codepoint vs. encoding
    codepoint - the integer associated with a character
    encoding - a scheme for storing codepoints in
        memory and files
- Unicode
- encoding: UTF-16
- byte order (UTF-16LE, UTF-16BE)
- encoding: UTF-8
- BOM = Byte Order Mark = 0xFEFF

+ Lab: characters

+ Upcoming
- Wednesday, 9/27 -- programming assignment (bitwise
    operations and character encodings)
- Monday, 10/2 by class time -- Moodle quiz about data
    representation (take as many times as you like; we'll
    keep your maximum score)
- Wednesday, 10/4 -- in-class exam on C and data representation