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Can the switches and bulbs of the room that you stay in be called an electric machine? Switches --> input (ON or OFF) and bulbs --> (ON or OFF). If so, can switches and bulbs be organized to ADD two numbers like 6 and 4? (Do a QMM on this question, if you need (Optional))



Then attempt the questions below:


1. Decide on at least TWO questions that you need to know to understand the TITLE above (2 marks)



2. If we assume that a switch can represent a number, then ON switch = 1 and OFF switch = 0. If we have multiple switches we can represent numbers larger than 1. As an output, an OFF bulb can represent 0 output. Since, machines are limited to switches, we need to design a numbering system based on ON or OFF, i.e., 0 and 1. Show how to count in such a numbering system (1 mark)



3. To review how binary numbering systems can be used to ADD, Subtract and Multiply numbers, read the article: https://www.omnicalculator.com/math/binary-operations. After reading the article, show (using a drawing) how the numbers 6 and 4 can be added using two sets of FOUR switches and FOUR bulbs. (3 marks)



4. Now once the switches are set to hold 6 and 4, how can each switch be used to ADD the number and show the output in bulbs? To do this, we need to do some logical operations. The available logic is given in the article https://optima-systems.co.uk/how-does-a-computer-add-two-numbers-together/ Read this article and work out how the logical circuits (gates) be used to ADD the TWO numbers given in Question 3. Show and explain this in a drawing. (4 marks)