ICT Semester 1 Examination

Use the following words to complete the paragraph that follows. Each word can be used more than once or not at all.

• Accident

• Actuators

• Automatic

• Autonomous

• Cameras

Answer explanation

The correct answer is 'Accident' because the context likely involves discussing the potential risks or incidents that can occur, making 'Accident' the most relevant choice among the options provided.

Give tick to the correct column to show whether each of following statements about health risk in using IT is true or false.

• Microprocessor-controlled devices last longer than manually-controlled devices and are not just 'thrown away'

• A mobile phone is an example of a labour-saving device

• Autonomous vehicles will increase the number of road accidents in the future

• Microprocessor-controlled devices create an increase in people's skill levels and make people less lazy

• Smart fridges and freezers can lead to healthier lifestyles

Answer explanation

All statements are true as microprocessor-controlled devices are durable, mobile phones save labor, autonomous vehicles may increase accidents, they can reduce laziness, and smart fridges promote healthier eating habits.

What do the initials of RSI stand for?

Answer explanation

The initials RSI stand for 'Relative Strength Index'. It is a momentum oscillator used in technical analysis to measure the speed and change of price movements.

Give one of the symptoms of RSI.

Answer explanation

One common symptom of Repetitive Strain Injury (RSI) is pain in the affected area, often in the wrists or hands, which can worsen with repetitive movements. This pain is a key indicator of RSI.

Write down two precautions that the students can take to minimize the chance of contracting RSI.

Answer explanation

To minimize the chance of contracting RSI, students can take regular breaks to rest their hands and eyes, and maintain proper ergonomics by adjusting their workspace to ensure a comfortable posture while using computers.

Name three labour-saving devices in the home that are microprocessor-controlled.

Answer explanation

Three microprocessor-controlled labour-saving devices in the home include programmable washing machines, smart thermostats, and robotic vacuum cleaners. These devices automate tasks, making household management easier and more efficient.

Give three advantages to the individual when microprocessor-controlled devices are used in the home.

Answer explanation

Microprocessor-controlled devices enhance convenience by automating tasks, improve energy efficiency through smart management, and increase security with advanced monitoring systems, benefiting individuals in their daily lives.

Give three disadvantages to the individual when microprocessor-controlled devices are used in the home.

Answer explanation

Three disadvantages of microprocessor-controlled devices in the home include: 1) Increased dependency on technology, 2) Potential for privacy breaches due to data collection, and 3) Higher costs for maintenance and repairs.

Names two health problems other than eye strain and RSI.

Answer explanation

Two health problems other than eye strain and RSI are carpal tunnel syndrome, which affects hand and wrist function, and tension headaches, often caused by stress and poor posture.

Explain two things a user should do to prevent future health problems when sitting in a chair at a desk and using a computer.

Answer explanation

To prevent future health problems, users should maintain good posture by keeping their back straight and feet flat on the floor. Additionally, taking regular breaks to stand, stretch, and move can help reduce strain and improve circulation.