CompSci Unit 5

Bit

A bit is the smallest unit of data in a computer, representing a binary value of either 0 or 1.

Byte

A byte is a group of 8 bits, which can represent 256 different values.

Decimal System (Denary, Base 10)

The decimal system is a base 10 numeral system, using digits from 0 to 9.

Binary System (Base 2)

The binary system is a base 2 numeral system, which uses two digits, 0 and 1.

Hexadecimal System (Base 16)

The hexadecimal system is a base 16 numeral system, using digits 0-9 and letters A-F to represent values.

Hex color codes

Hex color codes are six-digit representations of colors in the hexadecimal system, used in web design.

Two’s complement

Two's complement is a method for representing signed integers in binary form, allowing for easy subtraction.

ASCII

ASCII (American Standard Code for Information Interchange) is a character encoding standard using 7 bits to represent characters.

Unicode

Unicode is a computing standard for consistent encoding, representation, and handling of text, accommodating many languages.

AND

The AND operation is a logical operation that results in true only if both operands are true.

OR

The OR operation is a logical operation that results in true if at least one operand is true.

NOT

The NOT operation is a logical operation that inverts the truth value of its operand.

NAND

NAND is a logical operation that results in false only if both operands are true (NOT AND).

NOR

NOR is a logical operation that results in true only if both operands are false (NOT OR).

XOR

XOR (exclusive OR) is a logical operation that results in true if exactly one operand is true.