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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.

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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 6 of 26

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Q51.
What is a thumbwheel?

a.

A thumbwheel is a type of joystick.

b.

A thumbwheel is a device that has two orthogonal dials to control the cursor position.

c.

A thumbwheel is a type of mouse that is controlled by foot gestures.

d.

A thumbwheel is a large type of mouse used for graphic design.

Discuss
Answer: (b).A thumbwheel is a device that has two orthogonal dials to control the cursor position. Explanation:A thumbwheel is a control input device that has two orthogonal dials to manipulate the cursor position. This device is inexpensive and offers simplicity, but it may be slower than other devices and can limit cursor movement to either horizontal or vertical directions.
Q52.
How are thumbwheels beneficial in CAD systems?

a.

They allow you to draw freehand designs.

b.

They allow for exact verticals and horizontals, which is often necessary in CAD design.

c.

They make it easier to navigate large documents.

d.

They reduce the strain on the hand.

Discuss
Answer: (b).They allow for exact verticals and horizontals, which is often necessary in CAD design. Explanation:In computer-aided design (CAD), precise vertical and horizontal lines are often needed. A thumbwheel, with its constraints to horizontal and vertical movements, can be particularly useful for such requirements.
Q53.
What advantage does the scroll wheel on a standard mouse offer?

a.

It allows for precise vertical and horizontal lines.

b.

It provides an alternative means to scroll documents, which can be more intuitive and reduce hand strain.

c.

It makes it easier to draw freehand designs.

d.

It enables quick navigation between different applications.

Discuss
Answer: (b).It provides an alternative means to scroll documents, which can be more intuitive and reduce hand strain. Explanation:The scroll wheel on a standard mouse offers an alternative method for scrolling through documents. This is particularly beneficial for large documents where precise scrolling might be difficult. The use of the scroll wheel reduces the need to hold down a finger for dragging, which can reduce hand strain. Scrolling by simply rotating the wheel can be more intuitive and faster.
Q54.
What is a joystick?

a.

A joystick is a device that is manipulated by foot to control the cursor.

b.

A joystick is a small palm-sized box with a stick or shaped grip sticking up from it, movements of the stick cause a corresponding movement of the screen cursor.

c.

A joystick is a touch-sensitive device that is operated by stroking a finger over its surface.

d.

A joystick is a device that translates handwriting directly into text.

Discuss
Answer: (b).A joystick is a small palm-sized box with a stick or shaped grip sticking up from it, movements of the stick cause a corresponding movement of the screen cursor. Explanation:A joystick is an input device that consists of a small palm-sized box with a stick or shaped grip that protrudes from it. Movement of the stick causes a corresponding movement of the cursor on the screen.
Q55.
What is the difference between an absolute joystick and an isometric joystick?

a.

An absolute joystick controls the rate of movement across the screen, while an isometric joystick corresponds the position of the cursor to the position of the joystick.

b.

An absolute joystick is used in video games, while an isometric joystick is used in aircraft.

c.

In an absolute joystick, the position of the joystick in the base corresponds to the position of the cursor on the screen, while in an isometric joystick, the pressure on the stick corresponds to the velocity of the cursor.

d.

An absolute joystick is a type of mouse, while an isometric joystick is a type of keyboard.

Discuss
Answer: (c).In an absolute joystick, the position of the joystick in the base corresponds to the position of the cursor on the screen, while in an isometric joystick, the pressure on the stick corresponds to the velocity of the cursor. Explanation:Absolute and isometric joysticks operate differently. With an absolute joystick, the position of the joystick in relation to its base corresponds to the cursor's position on the screen. However, with an isometric or velocity-controlled joystick, it's the pressure applied to the stick that determines the speed of the cursor's movement on the screen. When released, the stick of an isometric joystick returns to its usual upright centered position.
Q56.
What is a keyboard nipple?

a.

A keyboard nipple is a device that translates handwriting directly into text.

b.

A keyboard nipple is a foot-operated device that moves the cursor by foot pressure on one side or the other of a pad.

c.

A keyboard nipple is a small rubber protrusion in the center of the keyboard that acts as a tiny isometric joystick.

d.

A keyboard nipple is a type of joystick used in video games.

Discuss
Answer: (c).A keyboard nipple is a small rubber protrusion in the center of the keyboard that acts as a tiny isometric joystick. Explanation:A keyboard nipple is a small rubber protrusion located in the center of some laptop keyboards. It functions like a tiny isometric joystick, controlling the rate of cursor movement across the screen. Although it can be challenging for novices, users can become proficient with adjustments to speed settings.
Q57.
What are touchscreens?

a.

Touchscreens are devices that detect the presence of the user’s finger or a stylus on the screen itself.

b.

Touchscreens are devices that operate via foot pressure on one side or the other of a pad.

c.

Touchscreens are devices that are manipulated by hand to control the cursor.

d.

Touchscreens are devices that translate handwriting directly into text.

Discuss
Answer: (a).Touchscreens are devices that detect the presence of the user’s finger or a stylus on the screen itself. Explanation:A touchscreen is an input device that allows the user to interact with a device by touching the screen directly. The screen detects the presence and location of a touch by the user’s finger or a stylus.
Q58.
What are some disadvantages of using touchscreens?

a.

Using the finger to point can leave greasy marks on the screen and is quite inaccurate. Lifting the arm to point to a vertical screen is very tiring, and the screen has to be within about a meter of the user to enable it to be reached.

b.

Touchscreens are not suitable for use in hostile environments.

c.

Touchscreens require a specialized pointing device.

d.

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

Discuss
Answer: (a).Using the finger to point can leave greasy marks on the screen and is quite inaccurate. Lifting the arm to point to a vertical screen is very tiring, and the screen has to be within about a meter of the user to enable it to be reached. Explanation:While touchscreens are direct and intuitive, they also come with some drawbacks. These include potential greasy marks left by fingers, the inaccuracy of fingers for precise selections or drawing, the fatigue associated with lifting an arm to interact with a vertical screen, and the need for the screen to be within reaching distance, which might be too close for some users' comfort.
Q59.
What is the optimal angle for a touchscreen according to research?

a.

About 15 degrees up from the horizontal.

b.

About 45 degrees up from the horizontal.

c.

About 30 degrees up from the horizontal.

d.

About 60 degrees up from the horizontal.

Discuss
Answer: (a).About 15 degrees up from the horizontal. Explanation:Research has suggested that the optimal angle for a touchscreen is about 15 degrees up from the horizontal. This positioning helps to balance usability and comfort for the user.
Q60.
What are stylus and light pen used for?

a.

They are used for fine selection and drawing on touch-sensitive surfaces.

b.

They are used to control the cursor movement on a desktop.

c.

They are used for controlling the velocity of the cursor.

d.

They are used for rotating the cursor.

Discuss
Answer: (a).They are used for fine selection and drawing on touch-sensitive surfaces. Explanation:A stylus and a light pen are pointing devices used to interact with a touch-sensitive screen. They are often used for tasks that require precision, such as fine selection and drawing. The stylus is a small pen-like plastic stick, while the light pen is a similar device that can detect a burst of light from the screen phosphor, allowing it to address individual pixels with great accuracy.
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