PAST PAPER 2021

Question 1

what is a real data type

Answer 1

number with a decimal/fractional part

Question 2

differences between a variable and a constant

Answer 2

contents of a variable can be changed, contents of a constant cannot

Question 3

how can transistors be used to store a value in binary (2)

Answer 3

-Transistor has two states
* 1 represents on, 0 represents off
* Each transistor stores one bit
* Multiple transistors used to store a binary value