Karina is taking her Computer Science examination. She has three questions to answer about output devices.
- (a)(i)For the first question she writes the answer: "It is a high powered laser that cuts materials such as thin metals or wood." Identify the output device that Karina is describing.[1]
- (a)(ii)For the second question she writes the answer: "The screen is made up of blocks of red, green and blue pixels. The screen uses layers of different types of liquid." Identify the output device that Karina is describing.[1]
- (a)(iii)For the third question she writes the answer: "It is responsible for powering and moving a motor in machinery, such as a robot arm in a factory." Identify the output device that Karina is describing.[1]
- (b)Karina correctly answers another examination question about some more output devices. Five different terms have been removed from her answer. Complete the sentences in Karina's answer, using the list given. Not all terms in the list need to be used. • 3D • digital light projector • inkjet • interactive whiteboard • laser • rotating • scanning • sliding • speaker • thermal bubble An .......................................................................................................................... allows a user to write on a surface using a pen, the text and drawings can then be captured and stored for later use. An .......................................................................................................................... printer produces a hard copy of a document using ........................................................................................................... and piezoelectric technology. A .......................................................................................................... printer uses a .......................................................................................................... drum, and positive and negative charges, to produce a hard copy of a document.[5]
Mark scheme
Marking points from the official mark scheme (Oct/Nov 2018). The mark or mark type is shown in brackets.
- [1] 2D/3D cutter
- [1] Liquid crystal display // LCD
- [1] Actuator
- [5] 1 mark for each correct missing word, in the given order:
- ∞ interactive whiteboard
- ∞ inkjet
- ∞ thermal bubble
- ∞ laser
- ∞ rotating
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