This is our project: a **grading system** that provides grades on the basis of marks **entered **by the user **subject-wise**. It provides grades subject-wise on a 5-point grading scale.

You can set your marks for any subject. You can set the grade range as per your choice. The circuit will output the grade.

It will also output **pass or fail **on a 7-segment display based on the **total marks** obtained and the **passing marks.**

This is an **Interactive **project where you **input **a number in binary format. You will get an **output **of the same number in decimal on the **7-segment led display**. (if that number = 580. That's my roll no so that's why :) (But you can build one for yourself :)

It will give output only when the input number = 580. Otherwise, it glows an red LED.

*You can change this to any number yourself. Just change the connections yourself to the LED and 7 segment display*

The input is 12 bits which would support numbers up to **4095**. **You can increase the bit length of the input for an even greater range. **

Get an **output **of the number you entered on the **7-segment display.**

We also have a **switch **to turn the display **off** altogether **irrespective** of the input given.

Submitted by

Name:- Abhinav Deshpande

Roll no.=IMT2022**580**

This is a very simple number comparator circuit.

You input 2 numbers and it gives an output

whether **A > B** (both are 2-bit numbers)

(A should be strictly greater than B)

Note that A and B are both 2-bit **binary **numbers. Binary meaning that they are represented with only **1**s and **0**s.

Remark: Even if you don't know about binary numbers, I have got you covered :)

Simply refer to the table given in the circuit to work out the input yourself.

Change the first input number labelled as A1 A0 by toggling the input. Similarly change the second number. Observe the LED for each combination of 2 numbers.

You will see an LED glowing if A > B. Otherwise, you won't see any output.

eg. If you input A1A0 as 11 and B1B0 as 10, the LED would glow.

Or rather you would ask, how can I design such a circuit myself? Well I will explain. So this is called a combinational circuit. You can design your circuit by first making a truth table with inputs as your two 2-bit numbers (4 inputs in total) and thinking about output for each set of inputs. So, you would have 4^{2} =**16 total inputs **in your truth table.

Next, after you have mapped your input and then your output for all those inputs, you would be solving a logical expression for output **Y **for a given set of 4 inputs **A _{1}A_{0} B_{1}B0**

You can use any method to solve for Y. You can use a K-map based reduction or you can simply solve using basic logic identities.

Once you get an **expression (expression **means** **something like this say (for eg. this is not what you may get) Y= A1.B1'+B1'B0'+...**)**

, you would then realize the circuit using logic gates. Just as I have done.

Increase the input to 3-bits , 4-bits and so on...