In a graphical user interface, the most common input device is,
Mouse
Keyboard
Monitor
Joy stick
Correct Answer :
A. Mouse
Nowadays, a mouse is a most widely used input device. It enables the user to give commands to the computer system by simply clicking. A mouse has two buttons left and right, these are used as per need.
Related Questions
CRT stands for,
Cathode Random Tunnel
Cathode Ray Tube
Cathode Random Tube
Cathode Ray Tunnel
Which among the following objects can be scan converted?
Point, Line, Sector, Arc
Characters
Ellipse, Rectangle, Polygons
All of the above
Which of the following line algorithms best balances the processing load among all the processers?
Parallel line algorithm
DDA line algorithm
Both a. and b. balances the load equally
None of the above
What is the work of control electrode?
It controls the electron beam
It established the electrode-cathode connection
Its glows the electrode
None of these
A video display device with the smallest height, lowest power usage, and lightest weight is -
LED display device
CRT display device
Flat panel display device
None of the above mentioned
An efficient transformation method which produces a parallel mirror image of an object is also referred as,
Rotation
Reflection
Shear
All of the mentioned above
In a graphical user interface, the most common input device is,
Mouse
Keyboard
Monitor
Joy stick
We set all scale factors to reduce the object's dimension.
Greater than 0
Less than 1
in Between 0 and 1
None of the Above
Which of the following is true with respect to the Bresenham's line drawing algorithm?
It overcomes the drawbacks of DDA line drawing algorithm
The DDA algorithm was proposed to overcome the limitations of Bresenham's line drawing algorithm
Both a. and b.
None of the above
|m|
A set proportional to a small horizontal deflection voltage
A set corresponding vertical deflection
Only B
All of the mentioned above
___ is a method of moving an entity from one coordinate point to another into a straight-line path is known as positioning.
Shearing
Reflection
Translation
Transformation
What value of the rotation angle rotates the object in clockwise direction?
Positive Value
Negative value
Value less than 180 degree
All of the above
Which of the following does not represent a line pattern?
Dark line
Dotted line
Dashed line
None of the mentioned above
With reference to Random Scan Display, which of the following options is correct?
It has an electron beam that directed only to the screen areas where any picture has to be displayed.
It has a good pixel amount.
It's ideal for line drawing.
All of the above mentioned.
The fundamental geometric transformations are as follows:
Scaling
Translation
Rotation
All of the Above
Who among the following developed the CRT (Cathode Ray Tube)?
Charles Darwin
Ferdinand Barun
Thomas Alva Edison
None of the above
Which of the following are true with respect to the Bresenham's algorithm?
It produces smooth polygons
The results of this algorithm are 100 percent accurate.
Due to integer operations, it's complexity gets reduced
All of the above
Why is the complexity of Bresenham's line drawing algorithm less than that of DDA line drawing algorithm?
It uses floating point operations over integer addition and subtraction
It considers only selected ranged inputs
It uses integer addition and subtraction over floating point operations
None of the above
Which controller is used in the frame buffer?
Display controller
Data controller
Digital controller
None of the above mentioned
RGB models are used for,
Graphical display
Graphical error
Graphical system
None of the above mentioned
Which lights form the viewing colors that we see on the screen?
Red
Blue
Green
All of these
What is a necessary to specify to generate rotation?
Specific distances between dx and dy
Rotation angle ?
Scaling
Repositioning
Which among the following are the types of scanning or travelling of beam in a raster scan display technique?
Interlaced Scanning
Non- Interlaced Scanning
Spiral Scanning
All of the Above
In a graphics system, the most prominent output device is,
VDU (Visual Display Unit)
Printer
Joystick
None of the above mentioned
With reference to Random Scan Display the beam of electron moves to the left top corner of the screen to move to another frame. This motion is referred to as ___
Vertical retrace
Horizontal retrace
Scan line
All of the above mentioned
What is the pixel range for an RGB image?OrWhat is the minimum and maximum possible value for each of the pixels of an RGB image?
0 - 23
0 - 224
0 - 1
None of the above
Which of the following options is not correct according to the definition of Computer Graphics?
Computer Graphics is used for animation purposes.
Computer graphics can be used to provide better user interface.
Computer graphics can improve the sound quality of a video
None of the above
The inside of the Cathode Ray Tube is coated with what material?
Fluorescent powder
No coating
Phosphorus
None of the above
Which of the following methods is the fastest pixel position calculating method?
Bressenham's line algorithm
DDA line algorithm
Mid-point algorithm
None of the above
The translation of a specified picture description into a series of pixel-intensity values for storage in the frame buffer is known as digitization, it is also known as ...,
Scan conversion
Randomization
Rasterization
Encoding