7400 competition entry: 7400 Logic Based Calculator

Posted on Tuesday, October 30th, 2012 in 7400 contest, contest by DP

7400 Logic Based Calculator is the open 7400 competition entry by students of the Pakistani Institute of Industrial Electronics Engineering. This was an assignment during their 6th semester course Digital Electronics II.

Digital logic based calculator built on 7400 series ICs which can add and subtract two digits with clear, and backspace as well

This project is made to perform calculations on 5-Bit signed data. Meanwhile we also need to implement logic to detect the type of input user pressed, and to perform operation as required. After all these things have been implemented we just need to display our data using 7-segment decoder to 7-segment display.

Build something that uses or abuses a logic chip and get amazing boards, tools, and other swag. The Open 7400 Logic Competition promotes awareness of the basic building blocks of modern circuits. Devious geeks ignited the computer revolution with discrete logic computers, what can you do? Details and entry form here.

Via the contact form.

This entry was posted on Tuesday, October 30th, 2012 at 10:00 pm and is filed under 7400 contest, contest. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

23 Responses to “7400 competition entry: 7400 Logic Based Calculator”

  1. Shayan says:

    Superb project . My vote goes to 7400 LOGIC BASED CALCULATOR.

  2. Umair says:

    My vote for this!!

  3. Sameed Tehami says:

    an impressive piece of work… best of luck guys….

  4. sajid ali says:

    I vote for 7400 LOGIC BASED CALCULATOR

  5. Deepak Kumar munwani says:

    my vote for 7400 logic based calculator…

  6. Aakash Kumar Khatri says:

    My vote for 7400 Logic Based Calculator…..:P

  7. Hissam Hanif says:

    Stands out well in the competition.Definitely worth my vote

  8. Usama Hamid says:

    my vote for this !

  9. Chief Sahab says:


    My Vote for this Calculator….

  10. saim says:

    my vote goes to 7400 Logic based calculator

  11. asad says:

    Definitely worth my vote

  12. Ammar says:

    Superb ! i will vote for this !

  13. zarak khan says:

    i will vote for this

  14. ishfaque khan says:

    my vote is for this project….

  15. nadeem ali says:

    Superb project . My vote goes to 7400 LOGIC BASED CALCULATOR.

  16. faizan ali qureshi says:

    I vote for 7400 LOGIC BASED CALCULATOR

  17. Muhammad azeem says:

    i like 7400 LOGIC BASED CALCULATOR project.

  18. zamin ali says:

    i vote this project

  19. Bilal Shahmeer says:

    This project is a good practical application of 7400 logic. My vote is with this project, good luck.

  20. Joji says:

    Vote for this project.

  21. sadid says:

    vote for this project

  22. samra says:

    kindly upload its logic diagram

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