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.

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

My vote for this!!

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

I vote for 7400 LOGIC BASED CALCULATOR

my vote for 7400 logic based calculator…

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

Stands out well in the competition.Definitely worth my vote

my vote for this !

Supereb…

My Vote for this Calculator….

my vote goes to 7400 Logic based calculator

Definitely worth my vote

Superb ! i will vote for this !

i will vote for this

my vote is for this project….

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

I vote for 7400 LOGIC BASED CALCULATOR

i like 7400 LOGIC BASED CALCULATOR project.

i vote this project

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

Vote for this project.

vote for this project

nice

kindly upload its logic diagram