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3. Hardware
A section of Computer Science, 0478
Listing 10 of 184 questions
Complete the paragraph by choosing six correct terms from the list. • Optical • On-line • RAM • HDD • Primary • SSD • Secondary • ROM • Off-line A computer has two different types of memory. memory is not directly accessed by the CPU, but it allows a user to store data that can easily be accessed by applications. Two examples of this type of memory are and . The second type of memory is memory. This memory is directly accessed by the CPU. It allows the processor to access data and instructions that are stored in this memory. Two examples of this memory are and .
0478_s17_qp_11
THEORY
2017
Paper 1, Variant 1
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Complete the paragraph by choosing six correct terms from the list. • Optical • On-line • RAM • HDD • Primary • SSD • Secondary • ROM • Off-line A computer has two different types of memory. memory is not directly accessed by the CPU, but it allows a user to store data that can easily be accessed by applications. Two examples of this type of memory are and . The second type of memory is memory. This memory is directly accessed by the CPU. It allows the processor to access data and instructions that are stored in this memory. Two examples of this memory are and .
0478_s17_qp_13
THEORY
2017
Paper 1, Variant 3
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Five sensors and five applications are shown below. Draw a line to link each sensor to its most appropriate application. Sensor Application Light sensor Monitor the pollution levels in a river Moisture sensor Control the switching off and on of street lights Gas sensor Detect intruders breaking into a building pH sensor Monitor the amount of water left in clothes in a dryer Pressure sensor Monitor acidity levels in the soil in a greenhouse Automatic doors in a building are controlled by the use of infrared sensors and a microprocessor. Describe how the sensors and the microprocessor are used to automatically open a door as a person approaches.
0478_s16_qp_11
THEORY
2016
Paper 1, Variant 1
View
Five sensors and five applications are shown below. Draw a line to link each sensor to its most appropriate application. Sensor Application Light sensor Monitor the pollution levels in a river Moisture sensor Control the switching off and on of street lights Gas sensor Detect intruders breaking into a building pH sensor Monitor the amount of water left in clothes in a dryer Pressure sensor Monitor acidity levels in the soil in a greenhouse Automatic doors in a building are controlled by the use of infrared sensors and a microprocessor. Describe how the sensors and the microprocessor are used to automatically open a door as a person approaches.
0478_s16_qp_13
THEORY
2016
Paper 1, Variant 3
View
Questions Discovered
184