AP CSP : Unit 1 Review : Digital Information

What is the term for a single binary digit, either a 0 or a 1?

• Byte

• Bit

• Abstraction

• Analog

Which of the following best describes how a computer represents all data?

• Using a combination of bits and bytes.

• Using only analog signals.

• Using patterns of bits.

• Using a fixed number of decimal digits.

A song is a continuous sound wave, but a digital recording of that song is made of discrete samples. What kind of data is the original song?

• Digital

• Analog

• Encoded

• Compressed

What happens when you try to represent a number that is too large for the number of bits a computer is using?

• Round-off error

• Overflow error

• Floating-point error

• Abstraction error

How many distinct values can a 6-bit binary number system represent?

• 6

• 12

• 64

• 256

How many distinct values can a 4-bit binary number system represent?

• 6

• 12

• 64

• 16

Convert the binary number 1101 to its decimal equivalent.

• 11

• 13

• 10

• 9

What is the decimal number 25 in binary?

• 11001

• 10110

• 11101

• 11011

What is the largest decimal number that can be represented with 5 bits?

• 31

• 32

• 15

• 64

What is the largest decimal number that can be represented with 4 bits?

• 31

• 32

• 15

• 64