4.5.3 Units of Information

Question 1

What is the fundamental unit of information?

Answer 1

The bit

Question 2

How many bits does it take to represent 2^n values?

Answer 2

n bits

Question 3

What are the names and symbols of powers of 2 binary prefixes?

Answer 3

kibi, Ki, 2^10 Bytes
mebi, Mi, 2^20 Bytes
gibi, Gi, 2^30 Bytes
tebi, Ti, 2^40 Bytes

Question 4

What are the names and symbols of powers of 10 decimal prefixes?

Answer 4

kilo, K, 10^3 Bytes
mega, M, 10^6 Bytes
giga, G, 10^9 Bytes
tera, T, 10^12 Bytes