Question

Perform the following conversion of numbers:

i) Decimal (56789123) 10 to binary and hexadecimal

ii) Hexadecimal (ABCDEF0) H into Octal.

iii) ASCII string “Subject: Compute r %$ Sc.” into UTF 8 string iv) Octal (345123) O into Decimal

Answer 1

In mathematics, positive numbers (including zero) are represented as unsigned numbers. That is we do not put the +ve sign in front of them to show that they are positive numbers.

However, when dealing with negative numbers we do use a -ve sign in front of the number to show that the number is negative in value and different from a positive unsigned value, and the same is true with signed binary numbers.