Elizabeth Kelly
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GCSE Computer Science Quiz am Input and output devices, CPU, erstellt von Elizabeth Kelly am 10/09/2016.

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Elizabeth Kelly
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Input and output devices, CPU

Frage 1 von 10

1

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

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    mouse
    keyboard
    webcam
    monitor
    speaker
    printer

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Frage 2 von 10

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

Wähle eine oder mehr der folgenden:

  • Just the output devices

  • All the processing in the computer

  • Keeping the motherboard cool so it can work more efficiently

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Frage 3 von 10

1

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

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Frage 4 von 10

1

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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 .

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Frage 5 von 10

1

What is the definition for Clock Speed?

Wähle eine oder mehr der folgenden:

  • 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

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Frage 6 von 10

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

Wähle eins der folgenden:

  • WAHR
  • FALSCH

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Frage 7 von 10

1

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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.

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Frage 8 von 10

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What is Cache Memory?

Wähle eine der folgenden:

  • 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

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Frage 9 von 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.

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    Level 1
    Level 2
    Level 3

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Frage 10 von 10

1

Why is Cache Memory used?

Wähle eine oder mehr der folgenden:

  • 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'

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