Question 2: A new bizarre coffee machine has two LED lights, RED and GREEN which light up based on certain inputs. You are asked to derive the internal circuit of the machine which enables the lights to glow. Depending on the inputs, both the lights, any one of the lights or none of the lights may glow. These two lights light up based on the following conditions: 1. Inputs (Conditions) : A: Coffee beans. (A=1 if coffee beans are absent, A=0 otherwise) B: Water Temperature (B=1 if water temperature is suitable, B=0 otherwise) C: Milk (C=1 if milk is present, C=0 otherwise) D:Sugar (D= 1 if sugar is running low, D=0 otherwise) If the temperature is too hot/cold then the temperature is considered unsuitable. Outputs: R: RED LED G: GREEN LED 1. The RED LED willight up if there is adequate amount of milk and there is i) sufficient sugar or ii) no coffee beans left for use with a suitable water temperature 2. If there is no milk then the RED LED will still glow up if i) there are adequate coffee beans but no sugar. or ii) the water temperature is very cold. 3. The GREEN LED will light up if the water temperature is too high or when there is a scarcity of sugar in the machine with enough coffee beans present.
Question 2: A new bizarre coffee machine has two LED lights, RED and GREEN which light up based on certain inputs. You are asked to derive the internal circuit of the machine which enables the lights to glow. Depending on the inputs, both the lights, any one of the lights or none of the lights may glow. These two lights light up based on the following conditions: 1. Inputs (Conditions) : A: Coffee beans. (A=1 if coffee beans are absent, A=0 otherwise) B: Water Temperature (B=1 if water temperature is suitable, B=0 otherwise) C: Milk (C=1 if milk is present, C=0 otherwise) D:Sugar (D= 1 if sugar is running low, D=0 otherwise) If the temperature is too hot/cold then the temperature is considered unsuitable. Outputs: R: RED LED G: GREEN LED 1. The RED LED willight up if there is adequate amount of milk and there is i) sufficient sugar or ii) no coffee beans left for use with a suitable water temperature 2. If there is no milk then the RED LED will still glow up if i) there are adequate coffee beans but no sugar. or ii) the water temperature is very cold. 3. The GREEN LED will light up if the water temperature is too high or when there is a scarcity of sugar in the machine with enough coffee beans present.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Transcribed Image Text:Question 2:
A new bizarre coffee machine has two LED lights, RED and GREEN which light up based on
certain inputs. You are asked to derive the internal circuit of the machine which enables the
lights to glow. Depending on the inputs, both the lights, any one of the lights or none of the lights
may glow.
These two lights light up based on the following conditions:
1. Inputs (Conditions):
A: Coffee beans. (A=1 if coffee beans are absent, A=0 otherwise)
B: Water Temperature (B=1 if water temperature is suitable, B=0
otherwise)
C: Milk (C=1 if milk is present, C=0 otherwise)
D:Sugar (D= 1 if sugar is running low, D=0 otherwise)
If the temperature is too hot/cold then the temperature is
considered unsuitable.
Outputs: R: RED LED
G: GREEN LED
1. The RED LED wil light up if there is adequate amount of milk and there is
i) sufficient sugar
or
ii) no coffee beans left for use with a suitable water temperature
2. If there is no milk then the RED LED will still glow up if
i) there are adequate coffee beans but no sugar.
or
ii) the water temperature is very cold.
3. The GREEN LED will light up if the water temperature is too high or when
there is a scarcity of sugar in the machine with enough coffee beans
presont.
Devise a truth table for the system above which will detect the presence of the diseases based
on the given symptoms. In your truth table, the input columns should be in the order
ABCD, where A is the MSB and D is the LSB.
Draw K-map (s) based on the scenario above and derive simplified output (s).
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