Question

2. What is meant by the following terms? Give an example of each.
(a) An octal number
(b) A hexa-decimal number​

Answer 1

Answer:

Explanation:

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.

In mathematics and computing, the hexadecimal (also base 16 or hex) numeral system is a positional numeral system that represents numbers using a radix (base) of 16. ... Each hexadecimal digit represents four bits (binary digits), also known as a nibble (or nybble), which is half a byte.

Answer 2

Answer:

(a) An octal number

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.

(b) A hexa-decimal number

Hexadecimal Numbers Summary

The word “Hexadecimal” means sixteen because this type of digital numbering system uses 16 different digits from 0-to-9, and A-to-F. Hexadecimal Numbers group binary numbers into sets of four digits.