Fundamentals Of Data Representation

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

Front (Question)

Natural numbers (N)

Back (Answer)

Don’t represent negative Represents whole numbers (0, 1, 2, 3)

Front (Question)

Integer numbers (Z)

Back (Answer)

Represent both whole and negative numbers -3, -2, -1, 0, 1, 2

Front (Question)

Rational numbers (Q)

Back (Answer)

Can be written as fractions ( 7/1) =7

Front (Question)

Irrational numbers

Back (Answer)

Cannot be written as a fraction pie, root 2

Front (Question)

Real numbers (R)

Back (Answer)

Set of all possible real world quantities Any written number

Front (Question)

Ordinal numbers

Back (Answer)

Tells the position of a list of numbers {a, b, c, d} A is the first position

Front (Question)

Decimal

Back (Answer)

67(10)

Front (Question)

Binary

Back (Answer)

10011011(2)

Front (Question)

Hexadecimal

Back (Answer)

AE(16)

#10

Front (Question)

Bit

Back (Answer)

Fundamental unit of information 0, 1

#11

Front (Question)

Byte

Back (Answer)

8 bits

#12

Front (Question)

2^n

Back (Answer)

Number of different values 3 bits = 2^3 = 8 different ways

#13

Front (Question)

Binary prefixes

Back (Answer)

Kibi - 2^10 Mebi - 2^20 Gibi - 2^30 Tebi- 2^40

#14

Front (Question)

Decimal prefixes

Back (Answer)

Kilo - 10^3 Mega - 10^6 Giga - 10^9 Tera - 10^12

#15

Front (Question)

Signed numbers

Back (Answer)

Represents positive and negative numbers (1001001111) First digit is 1

#16

Front (Question)

Unsigned

Back (Answer)

Does not represent negative numbers (0001100111) First digit is 0

#17

Front (Question)

Minimum and maximum value for a given number of bits in unsigned binary

Back (Answer)

0 and 2^n - 1

#18

Front (Question)

Why can fixed point and floating point representation of decimal numbers be wrong

Back (Answer)

There is a rounding error

#19

Front (Question)

Advantage of floating point

Back (Answer)

Provides a large range

#20

Front (Question)

Disadvantage of floating point

Back (Answer)

Rounds off large numbers which is time consuming

#21

Front (Question)

Advantage of fixed point

Back (Answer)

Numbers are represented with precision e.g. when money is involved

#22

Front (Question)

Disadvantage of fixed point

Back (Answer)

Provides a limited range

#23

Front (Question)

Why are floating point numbers normalised

Back (Answer)

To increase consistency. If each number is represented always by the same bit pattern comparisons would become easier

#24

Front (Question)

Overflow and where it occurs

Back (Answer)

When the result of addition or subtraction goes beyond range + and + = - - and - = +