Fundamentals of computer systems.

Descripción

Homework for Computing.
Neo Metcalfe
Mapa Mental por Neo Metcalfe, actualizado hace más de 1 año
Neo Metcalfe
Creado por Neo Metcalfe hace casi 9 años
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Resumen del Recurso

Fundamentals of computer systems.
  1. Definition
    1. A computer system is a device that can RECIEVE data, STORE it, PROCESS it and also OUTPUT it.
    2. The need for reliability in computer systems.
      1. Life Critical Situations
        1. Hospitals
          1. Power Plants
            1. Air Traffic control
            2. Data stored in databases
              1. If the data center is destroyed, masses of information is lost.
              2. Hard Drive Failure
                1. Missed deadlines
                  1. Fired from Job
                2. The probability that a computer system will give the expected output in a given timeframe
                3. Ethical, Legal and Environmental considerations when creating a computer system
                  1. Patent Rights
                    1. Copyrighted material (such as designs) can not be used when creating a new computer system.
                    2. Ethical
                      1. Replacing workers with Automated machines.
                        1. Privacy: Who can keep data about us and for how long?
                        2. WEEE (Waste, electronic and electrical equipment) ensures that old hospital and school appliances are recycled.
                          1. Sleep and hibernation modes ensure that computers use less energy when not in use
                            1. Virtual servers ensure that more of the physical server is in use
                              1. Adhere to energy regulations- need to be energy efficient
                              2. The importance of computer systems in the modern world.
                                1. Global Communication
                                  1. Air traffic control
                                    1. Secure data Access
                                      1. Secuity
                                        1. Traffic Lights
                                        2. The need for professional standards in the development, use and maintenance of computer systems.
                                          1. USB ( Universal serial bus)
                                            1. Bluetooth
                                              1. HTML ensures that webpages can be understood on any device.
                                                1. De Facto standards- Popular standards that companies choose to use
                                                  1. Open standards, officially agreed upon by companies
                                                    1. ASCII, standard character set that allows all computers to convert binary to characters using the same values.
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