2.3. Output devices and their uses
A subsection of Information and Communication Technology, 0417, through 2. Input and output devices
Listing 10 of 48 questions
A school uses a computer controlled greenhouse to grow plants. Name three sensors that would be used in the greenhouse. Explain why analogue to digital conversion is needed when computers are used to control a greenhouse. For Examiner's Use Tick three advantages of using computers, rather than students, to control the growing conditions.  Computer readings are more accurate Students always forget to take readings Students might be unavailable to take readings during school holidays Computers can record data for later use Computers can analyse the results Computers can react to changes in the conditions immediately The students want a printed record of the computer readings as they are taken. They want to put the printer inside the greenhouse. Their teacher has suggested a dot matrix printer. The students suggested an inkjet printer. Give two reasons why the teacher has suggested a dot matrix printer. Give two reasons why the students have suggested an inkjet printer.
0417_s10_qp_11
THEORY
2010
Paper 1, Variant 1
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A school uses a computer controlled greenhouse to grow plants. Name three sensors that would be used in the greenhouse. Explain why analogue to digital conversion is needed when computers are used to control a greenhouse. For Examiner's Use Tick three advantages of using computers, rather than students, to control the growing conditions.  Computer readings are more accurate Students always forget to take readings Students might be unavailable to take readings during school holidays Computers can record data for later use Computers can analyse the results Computers can react to changes in the conditions immediately The students want a printed record of the computer readings as they are taken. They want to put the printer inside the greenhouse. Their teacher has suggested a dot matrix printer. The students suggested an inkjet printer. Give two reasons why the teacher has suggested a dot matrix printer. Give two reasons why the students have suggested an inkjet printer.
0417_s10_qp_12
THEORY
2010
Paper 1, Variant 2
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Questions Discovered
48