Green Computing & the Digital Divide is one of 10 topics in the Grade 12 Information Technology CAPS syllabus, covered across 3 lessons on Study Vault. Below are real practice questions from this topic with full worked answers.
Sample practice questions
Easy
1. What does green computing (sustainable computing) refer to?
Designing, manufacturing, using and disposing of computers and technology in ways that minimise negative environmental impact
A programming language used to write energy-efficient software
A type of green-coloured computer hardware casing
A method for detecting malware using colour-coded alerts
Answer: Designing, manufacturing, using and disposing of computers and technology in ways that minimise negative environmental impact — Green computing refers to designing, manufacturing, using and disposing of computing technology in ways that minimise negative environmental impact.
Easy
2. What is e-waste?
Discarded electronic devices, such as old computers, mobile phones, monitors and peripherals
A type of malicious software that damages electronic devices
Data stored temporarily in RAM before being processed
Electricity wasted while a computer is actively being used
Answer: Discarded electronic devices, such as old computers, mobile phones, monitors and peripherals — E-waste refers to discarded electronic devices, such as old computers, phones, monitors and peripherals, and is a rapidly growing environmental problem.
Medium
3. Why is e-waste a serious environmental and health concern if simply dumped in a landfill?
Many electronic devices contain hazardous materials, such as lead, mercury and cadmium, which can contaminate soil and water
Electronic devices contain no materials of any environmental concern whatsoever
Landfills automatically neutralise any hazardous materials found in e-waste
E-waste disappears naturally within a few days once discarded
Answer: Many electronic devices contain hazardous materials, such as lead, mercury and cadmium, which can contaminate soil and water — Electronic devices commonly contain hazardous substances like lead, mercury and cadmium, which can contaminate soil and water if dumped in a landfill rather than being processed by specialised recycling facilities.
