IT R050: Uses of Computers

What is HCI primarily concerned with?

• The design of computer hardware

• Internet connectivity issues

• How a person uses or interacts with a computer

• Programming languages

Which of the following is an example of an embedded system?

• A desktop computer

• A digital watch

• A web server

• A smartphone

What is a common interface provided by operating systems?

• Telepathic interfaces

• Taste-based interfaces

• Smell-based interfaces

• Text-based interfaces

What is an advantage of cash machines in banking?

• They have high quality graphics

• They can be controlled with a mouse and keyboard

• They don't require powerful computers

• They provide unlimited cash withdrawals for customers

What is NOT a characteristic of embedded systems?

• Cheap to build

• Require a lot of processing power

• They only do one job

• Can run on batteries

What advantage does HCI offer in entertainment?

• Increases the cost of devices

• Enables wider choice and quick access

• Dependent on an internet connection

• Requires physical storage

What is an advantage of using touchscreens in fitness HCI?

• Can display multiple views of data in the same screen space

• Cheap subscription services

• Can provide inaccurate data

• Difficult to press the buttons on screen

What is a risk with built-in software in home appliances?

• May be difficult to update as time goes on

• Makes the device more energy-efficient

• Increases the device's value

• Devices may go haywire

What is a benefit of HCI in retail?

• Increases efficiency in tracking stock

• Can cut down on the number of staff needed to run the tills

• Decreases the time taken to enter data

• Requires manual age checks

What limitation does voice control in TVs have?

• It simplifies interaction

• It struggles with accents and background noise

• It is not widely available technology

• It could be a security risk