Graphical Display Devices Quiz

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What is the main disadvantage of the early graphical display devices mentioned in the text?

Limited color capability

Requires expensive hardware

Difficult to draw complex images (correct)

Flicker in the screen display

What technology improved the early graphical display devices in the 1960's?

Direct View Storage Tube (DVST) (correct)

Light Emitting Diode (LED)

Cathode Ray Tube (CRT)

Liquid Crystal Display (LCD)

What is the main difference between analog and digital displays in terms of raster scan technology?

Analog displays use continuous scanning, while digital displays use discrete pixels (correct)

Digital displays have better color capabilities than analog displays

Digital displays use continuous scanning, while analog displays use discrete pixels

Analog displays have higher resolution than digital displays

What is the definition of a 'pixel' in the context of raster scan display technology?

One dot or picture element of the raster Signup and view all the answers

How is the raster image stored in a computer or digital display?

As a matrix of pixels representing the entire screen area Signup and view all the answers

Which of the following devices uses raster scan display technology?

Cathode Ray Tube (CRT) displays Signup and view all the answers

What is the primary advantage of vector display technology over raster display technology?

All of the above Signup and view all the answers

What is the main component that draws the picture in a vector display system?

Electron beam Signup and view all the answers

What is the purpose of the 'refresh buffer' or 'vector file' in a vector display system?

To store the definition of the picture as a set of line-drawing commands Signup and view all the answers

How often are the component lines of a picture redrawn in a random scan vector display system?

30 to 60 times per second Signup and view all the answers

What is the main disadvantage of vector display technology compared to raster display technology?

Lower resolution Signup and view all the answers

What is the purpose of the 'display program' or 'display file' in a vector display system?

To store the definition of the picture as a set of line-drawing commands Signup and view all the answers

What type of graphics applications store mathematical descriptions of geometric elements?

Geometry-based graphics applications Signup and view all the answers

Which of the following is an example of a 3D geometry-based graphics application?

Autodesk 3D Studio Max Signup and view all the answers

How are images created in geometry-based graphics applications?

By sampling the geometric elements for viewing Signup and view all the answers

What is a 'primitive' in the context of geometry-based graphics?

A basic geometric shape like a line or polygon Signup and view all the answers

How do users typically interact with geometry-based graphics applications?

By manipulating the geometric elements, which causes the program to resample and redisplay them Signup and view all the answers

What is the purpose of combining geometry-based and sample-based graphics in computer graphics?

To increase the quality of the final product Signup and view all the answers