The objective of this problem is to design a combinational logic circuit that will aid in determination of the acceptability of emergency blood transfusions. It is known that human blood can be categorized into four types: A, B, AB, and O. Persons with type A blood can donate to both A and AB types and can receive blood from both A and O types. Persons with type B blood can donate to both B and AB types and can receive from both B and O types. Persons with type AB blood can donate only to type AB but can receive from any type. Persons with type O blood can donate to any type but can receive only from type O. Make appropriate variable assignments, and design a circuit that will approve or disapprove any particular transfusion based on these conditions.
What will be an ideal response?
Analysis:
Let WX represent a 2-bit code for the donor blood type, and let yz represent a 2-bit code for the recipient blood type. Then WXYZ will represent a donor-recipient pair. Let F be true if a transfusion can be made.
Blood type codes may be assigned as follows:
You might also like to view...
A series motor produces a greater ____________________ than a shunt motor for the same increase in current.
Fill in the blank(s) with the appropriate word(s).
The Primates order in the class Mammalia includes which of the following?
a. Cattle c. Humans b. Horses d. Hogs
In the binomial system of classification, _____ is at the top.
a. species c. class b. kingdom d. genus
The passenger side is called the ________
A) Right side B) Left side C) Either right or left side, depending on how the vehicle is viewed D) Both A and B