Results are out! Find what you need...fast. Get quick advice or join the chat
x

Unlock these great extras with your FREE membership

  • One-on-one advice about results day and Clearing
  • Free access to our personal statement wizard
  • Customise TSR to suit how you want to use it

De Morgans Law

Announcements Posted on
Find your uni forum to get talking to other applicants, existing students and your future course-mates 27-07-2015
Win top prizes in our mega results day giveaway... 24-07-2015
  1. Offline

    ReputationRep:
    Hi
    I am struggling with the diagram of this question. Can anyone help? I would have loaded my diagram but unsure how to do it. This is the question:

    Starting with the following statement (A+B).(A+C), show how this can be implemented using NAND gates using DeMorgans law.

    After doubly negating, I obtained (A.B) + (A.C). And this is where I get stuck.

    Please help. I have a deadline looming this week.

    Cheers
  2. Offline

    ReputationRep:
    Better asked in the Computing forum.

    You can factorise to A.(B+C)

    Do you know the NAND equivalnets for OR and AND? If so use them then delete any consecutive NOTs.
  3. Offline

    ReputationRep:
    (Original post by teachercol)
    Better asked in the Computing forum.

    You can factorise to A.(B+C)

    Do you know the NAND equivalnets for OR and AND? If so use them then delete any consecutive NOTs.
    Not totally sure. Thanks. Do you have an idea of what the diagram would look like? Thanks
  4. Offline

    ReputationRep:
    Its a standard bit of digital electronics. See here for example

    http://www.kpsec.freeuk.com/gates.htm

Reply

Submit reply

Register

Thanks for posting! You just need to create an account in order to submit the post
  1. this can't be left blank
    that username has been taken, please choose another Forgotten your password?
  2. this can't be left blank
    this email is already registered. Forgotten your password?
  3. this can't be left blank

    6 characters or longer with both numbers and letters is safer

  4. this can't be left empty
    your full birthday is required
  1. By joining you agree to our Ts and Cs, privacy policy and site rules

  2. Slide to join now Processing…

Updated: April 19, 2012
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

Poll
Do you think you'll do better or worse than your predicted grades?
New on TSR

Results are coming...

No sweat. Here's all you need to make sure you're ready

x

Think you'll be in clearing or adjustment?

Hear direct from unis that want to talk to you

Get email alerts for university course places that match your subjects and grades. Just let us know what you're studying.

Quick reply
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.