Ch.3

Question 1

bit

Answer 1

binary digit; smallest amount of information a computer can hold and process (1 or 0)

Question 2

analog

Answer 2

signal that fluctuates exactly like the original stimulus

Question 3

codec

Answer 3

compression-decompression

Question 4

compression

Answer 4

temporary rearrangement or elimination of redundant picture information for easier storage and signal transport

Question 5

digital

Answer 5

pertaining to the data in the form of binary digits

Question 6

field

Answer 6

one-half of a complete scanning cycle

Question 7

frame

Answer 7

a complete scanning cycle of the electron beam

Question 8

frame rate

Answer 8

time it takes to scan a complete frame (fps)

Question 9

HDTV

Answer 9

high-definition television (720p, 1080i and 1080p)

Question 10

interlaced

Answer 10

scanning of all odd-numbered lines (first field) and the subsequent scanning of all the even-numbered lines (second field)

Question 11

progressive

Answer 11

consecutive scanning of line from top to bottom

Question 12

quantizing

Answer 12

step in the digitization of an analog signal using sampling points to discrete numerical values (quantization)

Question 13

refresh rate

Answer 13

number of complete scanning cycles per second (fps)

Question 14

sampling

Answer 14

taking a number of samples of the analog signal at equally spaced intervals

Question 15

scanning

Answer 15

movement of the electron beam from left to right and top to bottom of the screen

Question 16

super hi-vision

Answer 16

video system that produces extremely high-resolution video images