Data & Representation

Flashcards covering the fundamental concepts of number systems and data units used in computing as described in the lecture notes.

Denary Numbers

Also known as Decimal Numbers; a Base $10$ system that uses 10 unique symbols: ($0,1,2,3,4,5,6,7,8,9$).

Binary Numbers

A Base $2$ system that uses 2 unique symbols ($0,1$) representing states as on/off or high/low voltage.

Bit

The smallest unit of data, representing a single binary digit ($0$ or $1$).

Byte

A unit of digital information that consists of $8$ bits.

Nibble

A unit of digital information that consists of $4$ bits, equivalent to one Hexa character.

Hexa Decimal

A Base $16$ system using 16 unique characters ($0-9$ and $A-F$) to simplify binary representation for memory addressing and visualization.

Place Value

The value defined by the position of digits, which in the Denary system is represented by powers of ten such as $10^{2}$, $10^{1}$, and $10^{0}$.