4- bit adder, 2's compliment subtractor circuit using a 4-bit adder IC. Verification of the operation of the circuit. Apparatus: Logic trainer kit, 4-bit adder (IC 7483), X-OR gates (IC 7486), wires Theory: IC 7483 is a 4 bit adder. In binary, subtraction can be performed by using 2's complement method. In this method negative number is converted into its 2's complement and it is added to the other number.

The result of this addition is the subtraction of origin numbers. If we modify the adder circuit, such that 2's complement and simple representation are presented, we can perform addition subtraction as required.

Chiti na lavacraft. Let's inspect what possibilities we can get when trying to get the 2's complement of a bit string. In the initial state you could get a 1 whose 1's complement is 0 and with a carry in hand equals to 1.

X-OR gate is used as a controlled inverter/ buffer for this purpose. Use it as buffer for addition and inverter for subtraction. Procedure: 1. Connect the IC 7483 and IC 7486 as per diagram. Connect all A's and all B's to logic sources, S's to logic indicators. Connect Cin to logic 0, this will set the circuit for addition.

Give various input combinations, verify adder operation. Here Cout is MSB of addition. Connect Cin to logic 1, this will set the circuit for subtraction by 2's complement method. Give various input combinations and observe outputs.

Here Cout is neglected (2's complement subtraction) 7. Switch off power supply. Aim: Verification of truth table for 7 segment decoder/ driver ICs Apparatus: Logic trainer kit, 7 segment decoder/ driver (IC 7447), wires Theory: Seven Segment is a display device. 7 LEDs are used in this device.

Subramaniam as Vaidhyanathan • Viji Kannan aa Meenatchi’s mother • S. Tamilo tv serial saravanan meenakshi. They both meet as their families arrange them marriage. Name Saravanan Meenatchi Director Azhagar, Praveen Bennett Channel Vijay TV Timing Monday to Saturday @8:30 pm Genre Romantic Family Drama Release Date 7 November 2011 Starring,, Stalin and Ramya Language Tamil Running Time 20 to 24 minutes per episode Saravanan Meenatchi Season 1 Cast & Crew • as Saravanan • as Meenatchi • Stalin as Thamizhselvan • Ramya Shankar as Soundharya • Rajasekar as Rajasekar • Kuyili as Sharadha • Y. Lakshmi as Meenatchi’s Grandmother • Margaret Divya as Yamini • Suchithra/Shwetha as Sudha • Sathya Sai/Shamily Sukumar as Ramya • Susan George as Malliga • Sangeetha as Amudha Saravanan Meenatchi Season 1 Plot Saravanan is a Radio Jockey from Chennai and Meenatchi is a School Teacher.

When a LED is forward biased, it emits light. By using a 7 segment, we can display various characters, formed by forward biased segments. It can be used to display 0-9 and a-F, BCD and Hexadecimal numbers can be displayed with it. 7 segment decoder/ driver is a combination of decoder circuit and display driver (for 7 segments). Input is given from 4 inputs and output is shown on display. Procedure: 1. Connect 4 inputs of display/ driver circuit to logic sources and switch on main supply.

Give any combination to circuit. Observe the display; it should be according to BCD/ Hexadecimal encoding. Give various input combinations, observe their corresponding outputs.

Connect Cin to logic 1, this will set the circuit for subtraction by 2's complement method. Switch off power supply. Aim verfification of truth table for 8:1 multiplexer.