Structure of Computer(1): Hardware

 We have been seen application of computer, its history, famous persons and famous companies. Today, I will introduce concrete structure of computer to you particularly about physical devices.

chart1: conceptual diagram of computer

Conceptual  Diagram of Hardware
 　The chart1 above represents brief structure of computer. As the chart represents, computer is composed of 5 parts mainly: CPU, Input devices, Output devices, Memory, External storage. In particular, CPU is center of the 5parts and therefore explain CPU first and then do the others.

CPU
 As a brain determines human's ability, quality of CPU is closely　related to the speed of processing. When we buy a computer, we should pay attention to quality of CPU.
　CPU is composed of two parts mainly, Control unit and Arithmetic logic unit.
  




Rederences
・http://memorva.jp/ranking/forbes/forbes_world_billionaires_2011_world.php