Number Systems (binary, hexadecimal, octal and ASCII)

Bit

A contraction of "Binary Digit". A bit is the single unit of information in a computer, typically represented as a 0 or 1

ASCII

ASCII - American Standard Code for Information Interchange. ASCII is the universally recognized raw text format that any computer can understand

Binary

A way of representing information using only two options

Hexadecimal with detail

The hexadecimal numbers are 0-9 and then use the letters A-F. We show the equivalence of binary, decimal, and hexadecimal numbers in the table below. Hexadecimal is a convenient way to express binary numbers in modern computers in which a byte is almost always defined as containing eight binary digits.

Hexadecimal

The hexadecimal numeral system, also known as just hex, is a numeral system made up of 16 symbols (base 16).

Octal

The octal numeral system, or oct for short, is the base-8 number system, and uses the digits 0 to 7. Octal numerals can be made from binary numerals by grouping consecutive binary digits into groups of three (starting from the right). For example, the binary representation for decimal 74 is 1001010.