unit 1 vocab

Question 1

abstraction

Answer 1

hiding the small details behind the scenes, ex: text messages-ASCII-binary

Question 2

binary digits (bits)

Answer 2

a base representing either 0 or 1 which can represent on/off

Question 3

lossless compression

Answer 3

reducing # of bits needed to represent something without loosing any info, best with text and files, is reversible

Question 4

lossy compression

Answer 4

best with video, images, sounds, reducing # of bits needed to represent something in which some data is lost/thrown away, is not reversible

Question 5

analog data

Answer 5

data with values that change smoothly overtime, ex: position of a fish as it swims through water

Question 6

digital data

Answer 6

data that changes discretely through a finite set of possible values

Question 7

sampling

Answer 7

a process for creating a digital representation of analog data by measuring the analog data at regular intervals called samples

Question 8

decimal #

Answer 8

a base with 10 possible different digits

Question 9

byte

Answer 9

8 bits

Question 10

overflow error

Answer 10

error from attempting to represent a number that is too large

Question 11

round off error

Answer 11

error from attempting to represent a number that is too precise, value then is rounded

Question 12

creative commons

Answer 12

some rights reserved used when creator wants to give others the rights to share/use, can’t sell

Question 13

intellectual property

Answer 13

creations of the mind such as designs, symbolize, ect. , any intellectual creation