2 bit adder Study guides, Class notes & Summaries
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![CS 4141 - University of Texas, Dallas_CS 4141 Pre-Lab 3. Adder IC (74LS283), Subtraction with Two’s Complement, 1-digit BCD Full Adder. Q&A](/docpics/642dc579619cb_2558143.jpg)
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CS 4141 - University of Texas, Dallas_CS 4141 Pre-Lab 3. Adder IC (74LS283), Subtraction with Two’s Complement, 1-digit BCD Full Adder. Q&A
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CS 4141 - University of Texas, Dallas_CS 4141 Pre-Lab 3. Adder IC (74LS283), Subtraction with Two’s Complement, 1-digit BCD Full Adder. Q&A CS 4141 Pre-Lab 3: Adder 74LS283 Student: Section: Dat e: 10/04/2020 (This pre-lab has 3 questions) Question 1: Adder IC (74LS283) The circuit diagram and logic symbol are on the left and right, respectively. You can read more information about this chip in A. The adder chip is a 4-bit adder. It has 9 inputs: C0 (carry-in), A1-A4 (input A), B1-B4 (input B)...
![CMSC 250 FINAL (100% Correct)](/docpics/3479371/650cc37a8496f_3479371_121_171.jpeg)
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CMSC 250 FINAL (100% Correct)
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2 Implementations of XOR correct answers (x ^ (~y)) ∨ ((~x) ^ y) 
(x ∨ y) ^ (~(x ^ y)) 
 
Carry bit in the half adder correct answers x ^ y 
 
How does the full adder add 3 binary digits X, Y, and Z? correct answers 1.) X and Y are added by the 1st HA, producing C1 and St 
2.) St and Z are added by the 2nd HA, producing C2 and S 
3.) C1 and C2 are added by an OR gate, producing C 
 
How does the n bit adder work? correct answers 1.) The first 2 bits are added with a half adder, producing S1 ...
![Computer Systems 1 Questions and Answers Rated A](/docpics/3808325/654dfb6a2baa3_3808325_121_171.jpeg)
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Computer Systems 1 Questions and Answers Rated A
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Computer Systems 1 Questions and Answers Rated A 
and gate 
or gate 
Not, And Or gates type elementary gate 
Using Logic gates without knowing the implementations is called .......? Abstraction 
Nand gate type primitive gate 
which gate can make all other types Nand gate 
selection bit allows you to chose which input to use Multiplexor 
not gate 
Xor gate 
Takes 1 input and gives 1 output (eg Not gate) Unary Boolean function 
1101 13 
1100 12 
 00010 
1101 + 1100 11001 
 11000 
Allows you to rep...
![SYSC 3006 LAB 2 PRELAB Lab section: L2 (All Answers are Correct)](/docpics/3510251/6513f41574876_3510251_121_171.jpeg)
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SYSC 3006 LAB 2 PRELAB Lab section: L2 (All Answers are Correct)
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1) Why can a single binary value represent both a signed integer value and an unsigned integer value? 
Use a representative example to help your explanation. 
An example of such a case is the binary value ‘111’. As a signed integer, the most significant bit, ‘1’ 
makes the value negative in the 2’s complement system. As a result, its value is ‘-1’ in decimal. However, 
as an unsigned integer, it represents ‘7’ in decimal. 
2) For each component supplied in Logisim’s Arithmeti...
![CSE/EEE 120 Lab 1 Answer Sheet Half Adder, Full Adder, 4-bit Incrementor and Adder](/docpics/63e525a9ea947_2354330.jpg)
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CSE/EEE 120 Lab 1 Answer Sheet Half Adder, Full Adder, 4-bit Incrementor and Adder
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CSE/EEE 120 
Lab 1 Answer Sheet 
Half Adder, Full Adder, 4-bit Incrementor and Adder 
Name:___Simran Bhalla___________ Instructor/Time:__Tuesday-Thursday (12:00PM1:15PM)___________________ 
Date:___February 17, 2020_______ 
Task 1-1: Build and Test the 1-Bit Half-Adder 
Include a picture of your Quartus circuit here: 
1 
Please comment on the single biggest issue you were facing when designing the circuit. 
Answer: 
The biggest issue I had while designing the circuit was aligning the circuit dia...
![EEE 120 Lab 1 Answer Sheet (Online) Half Adder, Full Adder, 4-bit Incrementer and Adder](/docpics/63ec799dbe22e_2372351.jpg)
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EEE 120 Lab 1 Answer Sheet (Online) Half Adder, Full Adder, 4-bit Incrementer and Adder
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EEE 120 
Lab 1 Answer Sheet (Online) 
Half Adder, Full Adder, 4-bit Incrementer and Adder 
Name: xxxx 
Date: 11/3/19 
Task 1-1: Build and Test the 1-Bit Half-Adder 
Include a picture of your Quartus circuit here: 
Please comment on the single biggest issue you were facing when designing the circuit. 
a. The biggest issues was remembering to save and compile before trying to run the waveform 
Include a picture of your Quartus simulation (timing diagram) here: 
1 
Did the circuit behave as expecte...
![CS 1104: COMPUTER SYSTEMS LATEST UPDATE GRADED A+](/docpics/3805725/654d69a9de232_3805725_121_171.jpeg)
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CS 1104: COMPUTER SYSTEMS LATEST UPDATE GRADED A+
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CS 1104: COMPUTER SYSTEMS LATEST UPDATE GRADED A+ ...serves as short term memory data registers 
...used for storing memory location addressing registers 
keeps address of next instruction that must be fetched PC register 
predefined symbols are ... special memory locations 
labels are destination of goto commands 
variables variable names 
6 in 16-bit binary 
T/F. Clock in sequential logic circuit keeps track of hours, minutes, seconds false 
any symbol xxx which is not predefined or used else...
![CISC 101 T/F (All Correct)](/docpics/3062331/64b076f341c0b_3062331_121_171.jpeg)
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CISC 101 T/F (All Correct)
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The ENIAC computer was remarkable in that it weighed less than 20 pounds and could be carried in a backpack. correct answers F 
 
Modern computers can only operate in binary at their most fundamental level because transistors, which are the basis of a CPU, can only be "on" or "off". correct answers T 
 
The word "computer" was used to describe the job position of the female operators of the ENIAC. correct answers T 
 
Modern transistors are made from doped aluminum. correct answers F 
 
A ...
![CISC 101 (100% Correct answers)](/docpics/3062323/64b076896a928_3062323_121_171.jpeg)
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CISC 101 (100% Correct answers)
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True or False: The ENIAC computer was remarkable in that it weighed less than 20 pounds and could be 
carried in a backpack. correct answers False 
 
True or False: Modern computers can only operate in binary at their most fundamental level because 
transistors, which are the basis of a CPU, can only be "on" or "off" correct answers True 
 
True or False: The word "computer" was used to describe the job position of the female operators of the ENIAC. correct answers True 
 
True or False. M...
![CS 1104 COMPUTER SYSTEMS QUESTIONS AND ANSWERS RATED A+](/docpics/3805692/654d6846c73f5_3805692_121_171.jpeg)
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CS 1104 COMPUTER SYSTEMS QUESTIONS AND ANSWERS RATED A+
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CS 1104 COMPUTER SYSTEMS QUESTIONS AND ANSWERS RATED A+ Name an unary Boolean function: NOT 
What is the most basic element of every computer system? c. Logic Gate 
Every Boolean function can be constructed from only: c. Nand function 
AND If a=b=1 then out=1 out=0 
NOT If in=0 then out=1 else out=0 
NAND If a=b=1 then out=0 out=1 
OR If a=b=0 then out=0 out=1 
The boolean expression A · B represents which of the following: a. A AND B 
True/False: According to DeMorgan's Theorem, inverting the...
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