Saturday, April 23, 2011

Computer Hardware

Computer is create from 2 word: compute and er. So, the meaning is something that can compute. The simplest computer is calculator. The other meaning is a tool that can sensed by human directly that support a system. 

Computer hardware:
  • input: keyboard, mouse, micro phone, etc
  • output: monitor, speaker, etc
  • processor
  • primary memory: random acces memory (fast, if no electricity the data will be lost)
  • secondary memory: harddisk (slow, if no electricity the data will stay at the memory)
  • bus
  • sound card
  • vga card
  • network card
  • etc
 How to plug? Don't worry because hardware:
  • always pair
  • can use a terminal
  • have different symbol
  • can use adapter
  • information written
  • different color
  • have different shape and size
  • often packed with the diagram
Computer characteristic:
  • Run appropiate with input and program (software) given
  • Can remember dan process detail
  • Can count rapidly
  • Cannot make a correction / decision
  • Very dependent with electric
Computer mith:
  • Computer can think (smart)
  • Computer make a mistake
  • Fastest computer allow the internet connection more speedy
  • Broken computer always caused by virus
  • More expensive computer, more fit for user
 Technology trend
  • Newest technology have different shape
  • Newest technology have more smaller size
  • Newest technology more smaller electric consumption
  • Newest technology have more bigger in capacity/speed, but with more cheap price

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