Hi, I am new to this forum, is it possible to help me on few Logic Gate questions please and the homework require us to name all of the gate.
Thank you

ok sorry guys, I did the first three logic gate.
First one I do not know the name of the gate.
A B X
0 0 0
1 0 1
0 1 1
1 1 0

NOR Gate
A B X
0 0 1
0 1 0
1 0 0
1 1 0

NOR gate
A B X
0 0 1
0 1 0
1 0 0
1 1 0

 

Fill in the truth table boxes and we will check it.
Max.

 

This is Homework Help; not homework done for you. Fill in the tables as best you can, and repost the question.

 

hi 516,
Its usual for homework questions to post what you think the answers are, we can give help based on your answers.

E

 

ok sorry guys, I did the first three logic gate.
First one I do not know the name of the gate.
A B X
0 0 0
1 0 1
0 1 1
1 1 0

NOR Gate
A B X
0 0 1
0 1 0
1 0 0
1 1 0

NOR gate
A B X
0 0 1
0 1 0
1 0 0
1 1 0

 

The first gate does not have an official name. I think the truth table is wrong. The output is a 1 when A=1 or B=0. In words this would be A OR NOT B. The truth table you wrote was for Exclusive OR (XOR).

 

This section contains truth tables for all the gates: http://en.wikipedia.org/wiki/Logic_gate#Symbols

Match your truth tables to the ones in the list.

 

This section contains truth tables for all the gates: http://en.wikipedia.org/wiki/Logic_gate#Symbols

Match your truth tables to the ones in the list.

Except that there is no entry for (A | ~B) which we know cannot be equivalent to (A ^ B)

Nice table -- good article BTW

 

All of the 2-input logic gates have names, it's just that the asymmetric ones are seldom used (by name).

A implies B means that if A is True, then B is True. If A is False, then B could be either True or False, so

A​

|

B​

|

\(A \to B\)
0​

|

0​

|

1
0​

|

1​

|

1
1​

|

0​

|

0
1​

|

1​

|

1​

The proper name is actually "material implication". The remaining gates have similar names and meanings.

http://en.wikipedia.org/wiki/Truth_table#Logical_implication