Elizabeth Kelly
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GCSE Computer Science Quiz on Input and output devices, CPU, created by Elizabeth Kelly on 10/09/2016.

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Elizabeth Kelly
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Input and output devices, CPU

Question 1 of 10

1

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

Drag and drop to complete the text.

    mouse
    keyboard
    webcam
    monitor
    speaker
    printer

Explanation

Question 2 of 10

1

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

Select one or more of the following:

  • Just the output devices

  • All the processing in the computer

  • Keeping the motherboard cool so it can work more efficiently

Explanation

Question 3 of 10

1

Fill the blank spaces to complete the text.

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

Explanation

Question 4 of 10

1

Fill the blank spaces to complete the text.

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 .

Explanation

Question 5 of 10

1

What is the definition for Clock Speed?

Select one or more of the following:

  • 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

Explanation

Question 6 of 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.

Select one of the following:

  • True
  • False

Explanation

Question 7 of 10

1

Select from the dropdown lists to complete the text.

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.

Explanation

Question 8 of 10

1

What is Cache Memory?

Select one of the following:

  • 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

Explanation

Question 9 of 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.

Drag and drop to complete the text.

    Level 1
    Level 2
    Level 3

Explanation

Question 10 of 10

1

Why is Cache Memory used?

Select one or more of the following:

  • 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'

Explanation

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