Introduction to Computer Graphics and Visual Computing

Question 1

Mathematics and Algorithms that define 2D and 3D Geometric Objects

Answer 1

Geometric Modeling

Question 2

Methods for creating graphics data via user input

Answer 2

Human Computer Interaction

Question 3

Math, physics and algorithms that specify how light interacts with matter

Answer 3

Lighting and Shading

Question 4

Algorithms that take geometry, lighting, shading and viewing information
and generate an image

Answer 4

Rendering

Question 5

Techniques for visually communicating and exploring scientific, medical or
abstract data

Answer 5

Visualization and Visual Analytics

Question 6

Study of how humans perceive light and information

Answer 6

Perception

Question 7

Using physics to make models move

Answer 7

Simulation

Question 8

Designing software and hardware systems to implement graphics
algorithms

Answer 8

Software and Hardware

Question 9

is an American computer scientist and Internet pioneer, widely regarded
as a pioneer of computer graphics.

Answer 9

Ivan Edward Sutherland

Question 10

Lossy, jaggies when
transforming, good for
photos.

Answer 10

Raster

Question 11

Non-lossy, smooth when
scaling, good for line art and
diagrams.

Answer 11

Vector

Question 12

the operation of most video
monitors was based on the standard

Answer 12

cathode-ray tube (CRT) design

Question 13

have become significantly more popular due to their reduced power consumption and thinner designs

Answer 13

flat-panel displays

Question 14

the frequency at which a picture is redrawn on the screen is referred to as the

Answer 14

refresh rate

Question 15

how long they continue to emit light (that is, how long it is before all excited electrons have returned to the ground state) after the CRT beam is removed.

Answer 15

persistence

Question 16

is defined as the time that it takes the emitted light from the screen to decay to one‐tenth of its original intensity

Answer 16

persistence

Question 17

The maximum number of points that can be displayed without overlap on a CRT is referred to as the

Answer 17

resolution

Question 18

The most common type of graphics monitor employing a CRT is the

Answer 18

raster-scan display

Question 19

In a raster‐scan system, the electron beam is swept across the screen, one
row at a time, from

Answer 19

top to bottom

Question 20

Picture definition is stored in a memory area called the

Answer 20

refresh buffer or frame buffer

Question 21

refers to the total screen area

Answer 21

frame

Question 22

Each row in a raster-scan display is referred to as a

Answer 22

scan line

Question 23

Each screen spot that can be illuminated by the electron beam is referred to as a

Answer 23

pixel or pel

Question 24

Since the refresh buffer is used to store the set of screen color values, it is also sometimes called a

Answer 24

color buffer

Question 25

Also, other kinds of pixel information, besides color, are stored in buffer locations, so all the different buffer areas are sometimes referred to collectively as the

Answer 25

frame buffer

Question 26

which is now often defined as the number of pixel columns divided by the number of
scan lines that can be displayed by the system

Answer 26

Aspect ratio

Question 27

can also be described as the number of
horizontal points to vertical points (or vice versa) necessary to produce equal‐length lines in both directions on the screen.

Answer 27

Aspect ratio

Question 28

HDTV, Widescreen, Smartphone (Horizontal) Aspect Ratio

Answer 28

16:9

Question 29

Smartphones (Vertical)

Answer 29

9:16

Question 30

Widescreen Computer Displays

Answer 30

16:10

Question 31

The number of bits per pixel in a frame buffer is sometimes referred to as either the

Answer 31

depth

Question 32

A frame buffer with one bit per pixel is commonly called a

Answer 32

bitmap

Question 33

a frame buffer with multiple bits per pixel is a

Answer 33

pixmap

Question 34

displays color pictures by using a combination of phosphors that emit
different‐colored light

Answer 34

CRT monitor

Question 35

The beam‐penetration method, typically used only two phosphor layers:

Answer 35

red and green

Question 36

are commonly used in raster‐scan systems (including color TV) because they produce a much wider range of colors than the beam penetration method

Answer 36

Shadow‐mask methods

Question 37

Color CRTs in graphics systems are designed as

Answer 37

RGB monitors

Question 38

High‐quality raster‐graphics systems have

Answer 38

24 bits per pixel in the frame buffer

Question 39

An RGB color system with 24 bits of storage per pixel is generally referred to as a

Answer 39

full‐color system or a true‐color system.

Question 40

refers to a class of video devices that have reduced volume, weight, and power requirements compared to a CRT

Answer 40

flat‐panel display

Question 41

are devices that convert electrical energy into light

Answer 41

The emissive displays (or emitters)

Question 42

use optical effects to convert sunlight or light from some other source into graphics patterns.

Answer 42

Nonemissive displays (or nonemitters)

Question 43

Plasma panels, also called

Answer 43

gas‐discharge displays

Question 44

are constructed by filling the region between two glass plates with a mixture of gases that usually includes neon

Answer 44

Plasma panels

Question 45

are commonly used in small systems, such as laptop computers and calculators.

Answer 45

Liquid‐crystal displays (LCDs)

Question 46

a special‐purpose processor, called the

Answer 46

video controller or display
controller