Number bases Flashcards
What defines a number base?
The number of digits available, i.e. base 10 has the digits 0-9 available
What is a bit?
A single binary digit; either a zero or a one
What is a byte?
A string of eight bits
How many different values can be represented by n bits?
2ⁿ
How many bytes are in one kibibyte?
2¹⁰
What is the symbol for a kibibyte?
Ki
How many bytes are in one mebibyte?
2²⁰
What is the symbol for a mebibyte?
Mi
How many bytes are in one gibibyte?
2³⁰
What is the symbol for a gibibyte?
Gi
How many bytes are in one tebibyte?
2⁴⁰
What is the symbol for a tebibyte?
Ti
How many bytes are in one kilobyte?
10³
What is the symbol for a kilobyte?
KB
How many bytes are in one megabyte?
10⁶
What is the symbol for a megabyte?
MB
How many bytes are in one gigabyte?
10⁹
What is the symbol for a gigabyte?
GB
How many bytes are in one terabyte?
10¹²
What is the symbol for a terabyte?
TB
How is the base a of a number n notated?
nₐ
Explain how numbers in a base b are represented
The nth least significant bit, m, is worth m(bⁿ⁻¹), where m is first converted to decimal, i.e. for A23₁₆, the first digit is worth 1016²
