2.1 Binary Archives - CSUK:Teacher

Why Hex? (2 marks)

Explain why hexadecimal notation is often used in computing instead of binary or decimal notation.

The hexadecimal number 2E is to be converted into a binary number. Provide the binary equivalent of 2E.

Given the binary number 11100101, convert it to its hexadecimal equivalent.

Add the following two binary numbers: 11001010 and 01110101.

The binary number 10101010 is an 8-bit two’s complement binary number. What is the decimal equivalent?

Explain the process and importance of overflow in the context of unsigned and signed integers.

Convert the denary number 156 to an 8-bit binary number.

Convert the 8-bit binary number 11100101 to a denary number.

Convert the denary number 18 into an 8-bit binary number as an unsigned integer.

Convert the 8-bit binary number 11110110 into a denary number using two’s complement.