/binary_bitwise

Binary Numbers, Bits, and Bitwise Operators

Primary LanguageJupyter Notebook

Binary Numbers, Bits, and Bitwise Operators

Binary Numbers

  • 8 Bits in a Byte
  • Bits Either 0 or 1
  • Bytes can be interpreted as:
    • Binary Octal
    • Binary Hexadecimal (16 Digits)
    • Binary (2 Digits)

Number Base = Number of Digits in a System of Counting

  • Base 10: 0,1,2,3,4,5,6,7,8,9
  • Base 2 (Binary): 0,1

In Binary Every Position Increases By A Multiple Of Two

Place Value 16 8 4 2 1 Value
Binary Number 1 0 1
4 +0 +1 = 5
Binary Number 1 0 1 0 1
16 +0 +4 +0 +1 = 21

Python Binary Notation: Prefix 0b

Bytes: Character Encoding

  • Python Object: bytes() immutable, and bytearray() modifiable
  • assign values to bytes or sets of bytes
  • map binary numbers to characters
  • UTF-8 used most widely today
  • ASCII = python default and oldest
  • bytestring = string of bytes -> b'\x01\x02\x03\x04\x05'

Bitwise Operations