Question 1: Explain why electronic waste (e-waste) can be harmful to the environment. Provide two reasons.

Answer: E-waste can release toxic chemicals into the soil and water, harming wildlife and humans. It also contributes to pollution and can take many years to decompose.

Question 2: Describe one way that companies can reduce their environmental impact when manufacturing electronic devices.

Answer: Companies can reduce their impact by recycling materials from old devices and using sustainable or recycled materials in their products.

Question 3: Complete the truth table for a circuit that uses an AND gate with two inputs, A and B. The table should include all possible input combinations and the resulting output.

Answer: A | B | Output ---|---|------- 0 | 0 | 0 0 | 1 | 0 1 | 0 | 0 1 | 1 | 1

Question 4: Draw a simple logic circuit that uses an OR gate and an AND gate to produce a specific output. Label each component clearly.

Answer: A correct sketch would show two inputs feeding into an OR gate, with its output connected to one input of an AND gate. The other input of the AND gate is a separate variable. The final output is from the AND gate.

Question 5: Describe an ethical issue related to the energy consumption of data centres.

Answer: Data centres consume large amounts of electricity, which can increase carbon emissions and contribute to climate change, raising ethical concerns about environmental sustainability.

Question 6: Suggest two ways individuals can help reduce the environmental impact of their use of computers and digital devices.

Answer: Individuals can turn off devices when not in use to save energy and recycle old electronics responsibly instead of throwing them away.

Question 7: Explain why it is important for companies to consider the environmental impact of their software development processes.

Answer: Considering environmental impact helps reduce energy consumption and waste, promotes sustainability, and demonstrates corporate responsibility.

Question 8: Sketch a design for an environmentally friendly computer case. Include features that would make it sustainable.

Answer: A suitable sketch would show a case made from recycled or biodegradable materials, with features like good ventilation for energy efficiency, and space for easy recycling or upgrading.

Question 9: Identify one ethical dilemma related to the disposal of old smartphones.

Answer: The dilemma is whether to properly recycle old smartphones to prevent environmental harm or to sell or throw them away, risking pollution.

Question 10: Complete the truth table for a NOT gate with input A. Show all possible input and output combinations.

Answer: A | Output ---|------- 0 | 1 1 | 0