computer systems

computer systems

1. Hardware

   • Input
   • Output

2. Software

   • input

3. CPU

   • Von Newman
   • Harvodd
   • job
     • fetch instructions
     • decode instructions
     • execute instructions
   • cores
     • Single
       • 1 processor
         • 2ghz = 2 billion instructions per second
     • duel
       • 2 processors
         • 3ghz = 6 billion instructions per second
     • Quad
       • 4 processors
         • 1ghz = 4 billion instructions per second
     • Ocoto
       • 8 processors

4. buses

   • data
   • control
   • address

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