• CPU – Central Processing Unit is not a big bulky box. It is a micro chip i.e. microprocessor.
  • All the devices like mobile phones, laptop, smartwatch, calculator, desktop, tabs are having a CPU.
  • Wikipedia of CPU
  • Types by Generation-
    • Transistors
    • Semicondoctrs(Small Scale)
    • Large Scale
    • Microprocessors(Latest)
  • Three main CPU cycle stages
    • Fetch
    • Decode
    • Execute