15-213/18-243 Introduction to Computer Systems
Lecture 2: Bits, Bytes, and Integers

• Reading: Ch 2.1 - 2.3
• Slides:
• Notes:
• Code: none
• Concepts:
  • Bits, bytes, words
  • Hexadecimal notation
  • Byte ordering
  • Boolean algebra
  • Bit vs logical operators in C
  • Unsigned and signed (two's complement) integers
  • Casting
  • Expansion and truncation
  • Addition, negation, multiplication, shifting
• Previous lecture: Overview
• Next lecture: Floating Point