IT- Chapter 3

How does a modem function in a computer network?

• It stores data temporarily for quick access.

• It converts data from one form to another.

• It processes data for output devices.

• It provides power to the computer components.

What is the primary purpose of a router in a computer network?

• To store data for future use.

• To convert analog signals to digital.

• To forward data between different networks.

• To display visual output from the computer.

Explain how ergonomic keyboards can help reduce repetitive strain injury (RSI).

• By increasing typing speed.

• By reducing the need for a mouse.

• By providing a more natural hand position.

• By enhancing the display quality.

Compare the functionality of a CRT monitor with an LCD monitor.

• CRT monitors use liquid crystals, while LCDs use cathode rays.

• CRT monitors are more energy-efficient than LCDs.

• CRT monitors use cathode rays, while LCDs use liquid crystals.

• CRT monitors are thinner and lighter than LCDs.

What reasoning can be used to determine the best input device for recording sound on a computer?

• A mouse is best because it is a pointing device.

• A microphone is best because it captures audio directly.

• A modem is best because it converts data forms.

• A router is best because it forwards data.

Why might a digital camera use a wireless link to connect to a computer instead of a cable?

• To reduce the cost of the camera.

• To allow for faster data transfer.

• To increase the camera's battery life.

• To provide more flexibility in camera placement.

What strategic considerations should be made when choosing between a CRT and an LCD monitor for a workspace?

• CRT monitors are more modern and stylish.

• LCD monitors are bulkier and take up more space.

• CRT monitors are more energy-efficient.

• LCD monitors are lighter and consume less power.

How does the design of an ergonomic keyboard help in reducing the risk of RSI?

• By increasing the number of keys.

• By aligning the keys in a straight line.

• By allowing a more natural wrist position.

• By reducing the keyboard's size.

What is the role of a sound card in a computer system?

• To display images on the screen.

• To convert digital audio signals to analog.

• To store large amounts of data.

• To connect to the internet.

Evaluate the impact of using a mouse as a pointing device on the risk of developing RSI.

• It reduces the risk because it is ergonomic.

• It increases the risk due to repetitive movements.

• It has no impact on RSI.

• It prevents RSI by providing a natural hand position.