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Computer Systems

Zenna Hussain 12 preguntas 5,0 (1 valoración) Actualizado el 19 feb 2016

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Preguntas del test (12)

  1. 1What is a computer system?
    1. AA combination of hardware and software components that allow input, processing
      and output of data.
    2. BHardware and software that do not not allow data.
  2. 2What is Hardware ?
    1. AThe physical components that make up a computer system.
    2. BThe programs that run on a computer system.
  3. 3What is Software?
    1. AThe programs that run on a computer system.
    2. BThe physical components that make up a computer system.
  4. 4What are input devices?
    1. AHardware that accepts data into the computer. They take real world analogue
      data and convert it into a digital form that can be stored on a computer. For
      example: keyboard, mouse, microphone, webcam, scanner, sensors.
    2. BHardware that presents the results of processing to the user or actuators that
      perform a task automatically. They use digital data from a computer and produce
      it in a form that is understandable or usable. For example: monitors, printers,
      speakers, projectors, actuators (motors).
  5. 5What are output devices?
    1. AHardware that presents the results of processing to the user or actuators that
      perform a task automatically. They use digital data from a computer and produce
      it in a form that is understandable or usable. For example: monitors, printers,
      speakers, projectors, actuators (motors).
    2. BHardware that accepts data into the computer. They take real world analogue
      data and convert it into a digital form that can be stored on a computer. For
      example: keyboard, mouse, microphone, webcam, scanner, sensors.
  6. 6What is a storage device?
    1. AHardware that is used to store files long term and is non-volatile, such as hard
      disks, memory sticks, magnetic tapes and CDs.
    2. BHardware that is used to store fi;es short erm and is not very volatile such as hard disks,memory sticks,magnetic disks and Cds
  7. 7What is Reliability?
    1. AHow far you can depend on the computer system being available when you need
      it. Usually measured in terms of availability.
    2. BThe way the device works and how long for.
  8. 8What is Availability?
    1. AThe proportion of time that a system is operational, usually expressed as a
      percentage over a period of time. E.g. 95% measured over one year.
    2. BA group of computer systrems measured by the amount of time.Eg 3 years
  9. 9Mean Time Between Failure: a measure of availability often quoted by hardware
    manufacturers. For example 2.56 years between failures means that, on average,
    the hardware can be expected to last 2.56 years before it goes wrong.
    1. AVerdadero
    2. BFalso
  10. 10Spare hardware components are built into a system so that, in the event of a
    component failing, the system can swap over to the spare one.This is called System Failure
    1. AVerdadero
    2. BFalso

Información

Descripción
Test sobre Computer Systems, creado por Zenna Hussain el 18/06/2015.
Idioma
English
Visitas
13
Historial
Creado el 18 jun 2015 · actualizado el 19 feb 2016
Valoración
5,0 de 5 · 1 valoración
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