Elizabeth Kelly
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GCSE Computer Science Test sobre Input and output devices, CPU, creado por Elizabeth Kelly el 10/09/2016.

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Elizabeth Kelly
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Input and output devices, CPU

Pregunta 1 de 10

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The following devices are examples of input devices: , ,
The following devices are examples of output devices: , ,

Arrastra y suelta para completar el texto.

    mouse
    keyboard
    webcam
    monitor
    speaker
    printer

Explicación

Pregunta 2 de 10

1

What is the CPU (Central processing Unit) responsible for?

Selecciona una o más de las siguientes respuestas posibles:

  • Just the output devices

  • All the processing in the computer

  • Keeping the motherboard cool so it can work more efficiently

Explicación

Pregunta 3 de 10

1

Rellena los espacios en blanco para completar el texto.

The main parts of the CPU are the and the (which stands for .)

Explicación

Pregunta 4 de 10

1

Rellena los espacios en blanco para completar el texto.

The CPU processes data by carrying out three steps: (instructions are transferred from the memory to the CPU), (the control unit determines what the instructions mean) and (the instruction is executed using the ALU for instructions involving logical or mathematical operations.) This whole process is called the .

Explicación

Pregunta 5 de 10

1

What is the definition for Clock Speed?

Selecciona una o más de las siguientes respuestas posibles:

  • Represents the number of instructions the CPU can process in a given time - the number of fetch-execute cycles it can perform

  • The amount of time the CPU can run for and perform the fetch-execute cycles

  • How fast the CPU can perform one fetch-execute cycle

Explicación

Pregunta 6 de 10

1

The clock speed is measured in megahertz (million) and gigahertz (billion) and the higher the clock speed, the faster the CPU will run.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 7 de 10

1

Selecciona la opción correcta de los menús desplegables para completar el texto.

Multiple core processors are processors with ( more, less ) cores than single core processors. If there are ( more, less ) cores, this means that more instructions can be processed at the same time, ( improving, not improving ) the computers performance. For example, a quad core processor would have a ( better, worse ) computer performance than a dual core processor as ( 4, 3, 2, 1 ) instructions can be processed in a ( shorter, longer ) time.

Explicación

Pregunta 8 de 10

1

What is Cache Memory?

Selecciona una de las siguientes respuestas posibles:

  • High speed memory in the CPU that is used to store a copy of frequently used instructions so they can be accessed more quickly

  • A small section of memory designated to storing specific data that needs protection - for example security data or details

  • Everyday memory that the computer uses in ever fetch-execute cycle

Explicación

Pregunta 9 de 10

1

cache is the smallest and closest to the CPU - sometimes it is built into the CPU itself.
cache is usually on a separate chip next to the CPU, is larger but slower in comparison.

Arrastra y suelta para completar el texto.

    Level 1
    Level 2
    Level 3

Explicación

Pregunta 10 de 10

1

Why is Cache Memory used?

Selecciona una o más de las siguientes respuestas posibles:

  • Because the processing speed of the CPU is limited by the speed that data can be supplied by the RAM, which is slower. It is easier to get data from the cache memory as it is closer to the CPU.

  • Because it frees up space inside the rest of the computer.

  • Because the RAM can get easily full with data so it is needed as an 'overflow'

Explicación

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