hey guys!! need help here!!to anyone,,,kblo ug computer organization or dli,
please provide anything nga inyo ma kuha from the following.

like,..how to approach the problem, schematic diagram if possible..,truth tables,,.k mapping,

and most importantly,,your understanding of the problem..

1. Design a combinational logic circuit that detects an error in the representation
of a decimal digit in BCD. Meaning, design a logic circuit whose output is high (1) when
the input combination is any of the unused combination in the BCD code.

2. Design a combinational logic circuit that accepts a 2-bit number and generates its square in a 4-bit binary value.


3. Consider the function f(a,b,c,d) that takes on the value 1 if and only if the number if 1's in b and c is greater than or equal to the number of 1's in a and d. Design the circuit of this function using SOP or Sum of Products..