Q1.
Give two reasons why hexadecimal is often used instead of binary in computer
science.
Q2.
A computer operates as a binary digital device. Explain why binary is used to represent computer data.
Q3.
A car park uses a number plate recognition system. Identify the reason why unsigned integers should be used to record the number of cars entering and leaving the car park, rather than signed integers
Q4.
A sound engineer is recording a singer. Describe why the sound must be converted to a digital format before it can be stored on a computer system
Q5.
Elucidate the fact that zero can only be represented in one way in twos complement and in two ways in ones complement
Taking a four-digit 0 binary number i.e (0000)2
In ones complement this is 1111
In twos complement this becomes 1111+1= 0000
So, It is clear that 0 and negative zero is the same in twos complement while in ones complement they are two different values