AP CSP Unit 1 Digital Information

What is a bit?

• A contraction of 'Binary Digit'

• A group of 8 bytes

• A decimal representation

• A type of overflow error

How many bits are in a byte?

• 4

• 8

• 16

• 32

What is binary?

• A process for reducing the number of bits needed to represent something

• A way of representing information using only two options

• A type of analog data

• A way of representing information using ten options

What is an overflow error?

• Error from using lossy compression

• Error from attempting to represent a number that is too large

• Error from attempting to represent a number that is too precise

• Error from sampling analog data

What is the main characteristic of analog data?

• It is always represented in decimal

• It is always represented in binary

• It changes continuously over time

• It changes discretely through a finite set of possible values

What is digital data?

• Data that is always represented in decimal

• Data that changes discretely through a finite set of possible values

• Data that is always represented in binary

• Data that changes continuously over time

What is sampling?

• A process for increasing the precision of digital data

• A process for converting digital data to analog data

• A process for reducing the number of bits needed to represent something

• A process for creating a digital representation of analog data

What is lossless compression?

• A process for converting analog data to digital data

• A process for converting digital data to analog data

• A process for reducing the number of bits needed to represent something with some information loss

• A process for reducing the number of bits needed to represent something without losing any information

What is lossy compression?

• A process for reducing the number of bits needed to represent something without losing any information

• A process for reducing the number of bits needed to represent something with some information loss

• A process for converting analog data to digital data

• A process for converting digital data to analog data

What is Creative Commons?

• A way of representing information using only two options

• A process for reducing the number of bits needed to represent something

• A collection of public copyright licenses

• A type of intellectual property