good day guys,
I have a home work to submit tommorow but do not know how tto go about it. a help will be highly appreciated. here are the problems

1. A1 and A0 are rpresents a two input binary number P, another two input binary number Q is represented by B1 and B0. design a loogic comparator using A1,A0 and B1,B0 as inputs whose output will be high only when the two numbers P and Q are equal. simplify and draw th elogic gate.

2. simplify the boolean expression F='x'y +'X'Z +YZ +XZ and drwa the logic gate. thanks for your anticipated help

 

pls I would appreciate an durgent reply to the title "logic design" thanks

 

Hello,

Did you read the header in this forum:

Your opening post dictates the direction of the topic and discussion, therefore if you are asking a question, be descriptive. Include in your posting:

• A description of your homeworks objectives.
• The problems you’ve identified.
• The steps you have taken to date, to overcome the problem; including any research and work your have already undertaken.

Additionally:

• Post all your attempts at the questions and details of any information you have been given as part of the homework/coursework/assignment.
• If this is a circuit-related question, post a schematic of your circuit and include a link to the original circuit if your design is a modification of the original.

So what have you done upto now?

Here are some pages of the EDUCYPEDIA on digital subjects:

General overview digital logic
Arithmetic circuits D/A-A/D converters Number systems Codes and decoders Flip flops Technology Counters and registers General overview Technology-CMOS Digital logic Memories Technology-TTL Timers and oscillators
Bertus

 

well, the question is to "design a logic comparative" i have tried using 2 NOT gates, 2 AND gates and an 1 OR gates but the problem is that I do not know if it is the RIGHT comparator to use.
On the second Question, I have tried factoring as in F='X('Y +'Z) + Z(y+x) but how the logic gate wil look like is the problem. thanks

 

Ok!See the attachment. Here I can use two EX-NOR gate & one AND gate.If the nos P and Q are same then their bits(A0 & B0, A1 & B1) should also be same.So,the o/p of EX-NOR gate will be 1 only when they are equal.If both the EX-NOR o/p is 1 then the o/p of AND gate is 1 .Thanks!!