[CS] CS50 - Computer Thinking

• CS, Computer Science
  Input --> Computer Science --> Output
  
  
• Binary System
  Decimal number sys - e.g. 123 = 1*100 + 2*10 + 3*1
  Binary number sys - e.g. 3 = 011
  
  
• Bit = Binary digit -----> byte = 8 Bits (2^8 = 256)
  look likes Transister in Computer
  on-1/off-0
  
  
• various data expression
  bit, byte, KB, MB, GB, TB

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