Welcome to the The Computer MCQs Page

Dive deep into the fascinating world of The Computer with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of The Computer, a crucial aspect of Human Computer Interaction. In this section, you will encounter a diverse range of MCQs that cover various aspects of The Computer, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Human Computer Interaction.

Check out the MCQs below to embark on an enriching journey through The Computer. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Human Computer Interaction.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of The Computer. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

The Computer MCQs | Page 7 of 26

Explore more Topics under Human Computer Interaction

01

Introduction to Human Computer Interaction 🔒

02

The Interaction

03

Paradigms 🔒

04

Interaction Design Basics 🔒

05

HCI in the Software Process

06

Design rules 🔒

07

Implementation Support

08

Evaluation Techniques 🔒

09

Universal Design

10

User Support

11

Cognitive Models 🔒

12

Socio Organizational Issues and Stakeholder Requirements

13

Communication and Collaboration Models 🔒

14

Task Analysis

15

Dialog Notations and Design

16

Models of the System 🔒

17

Modeling Rich Interaction 🔒

18

Groupware 🔒

19

Ubiquitous Computing and Augmented Realities 🔒

20

Hypertext,Multimedia and the World Wide Web

Q61.

What are the downsides of using a stylus and a light pen?

They can be tiring to use on upright displays and are harder to take up and put down when used together with a keyboard. They can also easily get lost, and the act of pointing can obscure the display.

They are not suitable for use in hostile environments.

They are slow and require separate hardware which can be damaged by dirt.

They require the screen to be within about a meter of the user to enable it to be reached.

Discuss

Answer: (a).They can be tiring to use on upright displays and are harder to take up and put down when used together with a keyboard. They can also easily get lost, and the act of pointing can obscure the display. Explanation:While the stylus and the light pen are excellent tools for precise tasks, they come with some limitations. They can cause fatigue when used on vertical displays, can be difficult to manage when used alongside a keyboard, and are prone to getting lost. Moreover, the act of pointing can obscure the display, making it difficult to make rapid, complex selections or movements.

Q62.

What should be taken into account in screen designs for the use of direct devices like a stylus or light pen?

Where the user’s hand will be, and the need to offer alternative layouts for right-handed and left-handed users.

The need for the screen to be within about a meter of the user to enable it to be reached.

The need to keep the devices clean and free from dirt.

The need to provide additional hardware for better control.

Discuss

Answer: (a).Where the user’s hand will be, and the need to offer alternative layouts for right-handed and left-handed users. Explanation:The design of the screen interface can greatly impact the usability of direct input devices like the stylus or light pen. Designers need to take into consideration where the user's hand will be (since it can obscure the screen), and may want to consider placing menus at the bottom rather than the top of the screen. They also need to consider offering alternative layouts for right-handed and left-handed users to accommodate their differing needs.

Q63.

What is a digitizing tablet typically used for?

For freehand drawing and sometimes as a mouse substitute.

For controlling the cursor movement in video games.

For scrolling documents on a screen.

For navigating through a virtual reality environment.

Discuss

Answer: (a).For freehand drawing and sometimes as a mouse substitute. Explanation:A digitizing tablet is a device that allows users to input graphical data into computers directly by touching the tablet with a special pen, or stylus. This makes it perfect for freehand drawing and other tasks that require fine control and precision. In some cases, it can also be used as a mouse substitute.

Q64.

What are some problems associated with using digitizing tablets?

They require a large amount of desk space and may be awkward to use if displaced to one side by the keyboard.

They can leave greasy marks on the screen and are not very accurate.

They require the screen to be within about a meter of the user to enable it to be reached.

They are very expensive and not very robust.

Discuss

Answer: (a).They require a large amount of desk space and may be awkward to use if displaced to one side by the keyboard. Explanation:While digitizing tablets offer high-resolution input and can be very useful for certain tasks, they do have some downsides. These devices require a significant amount of desk space due to their size, and they can be awkward to use if displaced to one side by the keyboard. This is especially true if the user needs to switch between the keyboard and the tablet frequently.

Q65.

In which way can a digitizing tablet be adapted to provide 3D input?

By detecting current pulses in a magnetic field.

By detecting point contact between two separated conducting sheets.

By emitting an ultrasonic pulse from a special pen which is detected by two or more microphones.

By increasing the sampling rate.

Discuss

Answer: (c).By emitting an ultrasonic pulse from a special pen which is detected by two or more microphones. Explanation:One type of digitizing tablet, the sonic tablet, can potentially be adapted to provide 3D input. It does this by emitting an ultrasonic pulse from a special pen. This pulse is then detected by two or more microphones, which use the time it takes for the pulse to reach them to triangulate the pen's position in three dimensions. This can provide a way to input 3D information directly into the computer.

Q66.

What are eyegaze systems typically used for?

For writing long essays.

For controlling a computer by looking at it.

For enhancing the graphics of a video game.

For protecting sensitive information on a computer.

Discuss

Answer: (b).For controlling a computer by looking at it. Explanation:Eyegaze systems are designed to allow users to control a computer simply by looking at it. These systems use a low-power laser that is reflected off the retina of the eye. By tracking the reflected beam, the system can determine the direction in which the eye is looking, thereby controlling the movement of the screen cursor or other computer functions.

Q67.

Which of the following is not a suitable task for eyegaze systems?

Accurate drawing

Selecting items on the screen

Guiding missiles to their targets

Tracking where a user is looking

Discuss

Answer: (a).Accurate drawing Explanation:Eyegaze systems allow for very fast and accurate cursor movement, making them excellent for tasks such as selecting items on a screen or even guiding missiles to their targets in military applications. However, they are not suitable for accurate drawing tasks because the eye does not move in smooth lines.

Q68.

What are some challenges of using eyegaze systems?

They can be expensive and it can be difficult to distinguish deliberate gazing from accidental glancing.

They require a large amount of desk space and may be awkward to use if displaced to one side by the keyboard.

They can leave greasy marks on the screen and are not very accurate.

They require the screen to be within about a meter of the user to enable it to be reached.

Discuss

Answer: (a).They can be expensive and it can be difficult to distinguish deliberate gazing from accidental glancing. Explanation:While eyegaze systems offer a unique and hands-free way to interact with a computer, they do present some challenges. First, these systems can be quite expensive, particularly the more accurate versions. Second, in practical applications, it can be difficult to distinguish between a user deliberately gazing at something on the screen and accidentally glancing at it. This could potentially lead to unintended commands being given to the computer.

Q69.

What are cursor keys used for?

To control the cursor in a two-dimensional positioning manner.

To protect sensitive information on a computer.

To enhance the graphics of a video game.

To control the computer by looking at it.

Discuss

Answer: (a).To control the cursor in a two-dimensional positioning manner. Explanation:Cursor keys, often located on the keyboard, are used to control the cursor's movement on a screen. They allow for a form of discrete positioning, as opposed to continuous positioning, and can be especially useful for navigating through menus, spreadsheets, or text.

Q70.

Why might cursor keys still be relevant despite advances in other input methods like the mouse or touch screens?

They can provide a more tactile experience.

They are often used in character-based systems and for logging into remote machines.

They are more accurate for drawing.

They can control the computer by looking at it.

Discuss

Answer: (b).They are often used in character-based systems and for logging into remote machines. Explanation:While cursor keys might seem outdated with the advent of more sophisticated input devices like the mouse or touch screens, they still hold relevance especially in character-based systems and for accessing remote machines. For instance, when logging into remote servers, the interface is often a character-based terminal within a telnet window, where cursor keys and combinations of control keys are frequently used for navigation and command input.

Page 7 of 26

Introduction to Human Computer Interaction 🔒

Paradigms 🔒

Interaction Design Basics 🔒

Design rules 🔒

Evaluation Techniques 🔒

Cognitive Models 🔒

Communication and Collaboration Models 🔒

Models of the System 🔒

Modeling Rich Interaction 🔒

Groupware 🔒

Ubiquitous Computing and Augmented Realities 🔒

Welcome to the The Computer MCQs Page

The Computer MCQs | Page 7 of 26

Explore more Topics under Human Computer Interaction

The Interaction

HCI in the Software Process

Implementation Support

Universal Design

User Support

Socio Organizational Issues and Stakeholder Requirements

Task Analysis

Dialog Notations and Design

Hypertext,Multimedia and the World Wide Web

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