The document discusses digital circuits including combinational and sequential circuits. It describes various combinational logic circuits such as half adders, full adders, comparators, multiplexers, encoders, decoders. It also discusses sequential circuits and how they employ memory elements. Arithmetic circuits, binary adders, subtractors, and BCD to 7-segment decoders are explained in detail through diagrams and examples.
In computing, an arithmetic logic unit (ALU) is a digital circuit that performs arithmetic and logical operations. The ALU is a fundamental building block of the central processing unit (CPU) of a computer, and even the simplest microprocessors contain one for purposes such as maintaining timers. The processors found inside modern CPUs and graphics processing units (GPUs) accommodate very powerful and very complex ALUs; a single component may contain a number of ALUs.
In computing, an arithmetic logic unit (ALU) is a digital circuit that performs arithmetic and logical operations. The ALU is a fundamental building block of the central processing unit (CPU) of a computer, and even the simplest microprocessors contain one for purposes such as maintaining timers. The processors found inside modern CPUs and graphics processing units (GPUs) accommodate very powerful and very complex ALUs; a single component may contain a number of ALUs.
It is the adder used to eliminate the wastage of time occur at each stage of parallel binary adder.In this , by using only carry input signal , we can calculate the the carry output without going to calculate carry at each stage.it is commonly used only for 4 bit addition because further calculation will be more complex.
An arithmetic logic unit (ALU) is a digital electronic circuit that performs arithmetic and bitwise logical operations on integer binary numbers.
This is in contrast to a floating-point unit (FPU), which operates on floating point numbers. It is a fundamental building block of many types of computing circuits, including the central processing unit (CPU) of computers, FPUs, and graphics processing units.
A single CPU, FPU or GPU may contain multiple ALUs
History Of ALU:Mathematician John von Neumann proposed the ALU concept in 1945 in a report on the foundations for a new computer called the EDVAC(Electronic Discrete Variable Automatic Computer
Typical Schematic Symbol of an ALU:A and B: the inputs to the ALU
R: Output or Result
F: Code or Instruction from the
Control Unit
D: Output status; it indicates cases
Circuit operation:An ALU is a combinational logic circuit
Its outputs will change asynchronously in response to input changes
The external circuitry connected to the ALU is responsible for ensuring the stability of ALU input signals throughout the operation
It is the adder used to eliminate the wastage of time occur at each stage of parallel binary adder.In this , by using only carry input signal , we can calculate the the carry output without going to calculate carry at each stage.it is commonly used only for 4 bit addition because further calculation will be more complex.
An arithmetic logic unit (ALU) is a digital electronic circuit that performs arithmetic and bitwise logical operations on integer binary numbers.
This is in contrast to a floating-point unit (FPU), which operates on floating point numbers. It is a fundamental building block of many types of computing circuits, including the central processing unit (CPU) of computers, FPUs, and graphics processing units.
A single CPU, FPU or GPU may contain multiple ALUs
History Of ALU:Mathematician John von Neumann proposed the ALU concept in 1945 in a report on the foundations for a new computer called the EDVAC(Electronic Discrete Variable Automatic Computer
Typical Schematic Symbol of an ALU:A and B: the inputs to the ALU
R: Output or Result
F: Code or Instruction from the
Control Unit
D: Output status; it indicates cases
Circuit operation:An ALU is a combinational logic circuit
Its outputs will change asynchronously in response to input changes
The external circuitry connected to the ALU is responsible for ensuring the stability of ALU input signals throughout the operation
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
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Event Management System Vb Net Project Report.pdfKamal Acharya
In present era, the scopes of information technology growing with a very fast .We do not see any are untouched from this industry. The scope of information technology has become wider includes: Business and industry. Household Business, Communication, Education, Entertainment, Science, Medicine, Engineering, Distance Learning, Weather Forecasting. Carrier Searching and so on.
My project named “Event Management System” is software that store and maintained all events coordinated in college. It also helpful to print related reports. My project will help to record the events coordinated by faculties with their Name, Event subject, date & details in an efficient & effective ways.
In my system we have to make a system by which a user can record all events coordinated by a particular faculty. In our proposed system some more featured are added which differs it from the existing system such as security.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
COLLEGE BUS MANAGEMENT SYSTEM PROJECT REPORT.pdfKamal Acharya
The College Bus Management system is completely developed by Visual Basic .NET Version. The application is connect with most secured database language MS SQL Server. The application is develop by using best combination of front-end and back-end languages. The application is totally design like flat user interface. This flat user interface is more attractive user interface in 2017. The application is gives more important to the system functionality. The application is to manage the student’s details, driver’s details, bus details, bus route details, bus fees details and more. The application has only one unit for admin. The admin can manage the entire application. The admin can login into the application by using username and password of the admin. The application is develop for big and small colleges. It is more user friendly for non-computer person. Even they can easily learn how to manage the application within hours. The application is more secure by the admin. The system will give an effective output for the VB.Net and SQL Server given as input to the system. The compiled java program given as input to the system, after scanning the program will generate different reports. The application generates the report for users. The admin can view and download the report of the data. The application deliver the excel format reports. Because, excel formatted reports is very easy to understand the income and expense of the college bus. This application is mainly develop for windows operating system users. In 2017, 73% of people enterprises are using windows operating system. So the application will easily install for all the windows operating system users. The application-developed size is very low. The application consumes very low space in disk. Therefore, the user can allocate very minimum local disk space for this application.
Forklift Classes Overview by Intella PartsIntella Parts
Discover the different forklift classes and their specific applications. Learn how to choose the right forklift for your needs to ensure safety, efficiency, and compliance in your operations.
For more technical information, visit our website https://intellaparts.com
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
Vaccine management system project report documentation..pdfKamal Acharya
The Division of Vaccine and Immunization is facing increasing difficulty monitoring vaccines and other commodities distribution once they have been distributed from the national stores. With the introduction of new vaccines, more challenges have been anticipated with this additions posing serious threat to the already over strained vaccine supply chain system in Kenya.
Automobile Management System Project Report.pdfKamal Acharya
The proposed project is developed to manage the automobile in the automobile dealer company. The main module in this project is login, automobile management, customer management, sales, complaints and reports. The first module is the login. The automobile showroom owner should login to the project for usage. The username and password are verified and if it is correct, next form opens. If the username and password are not correct, it shows the error message.
When a customer search for a automobile, if the automobile is available, they will be taken to a page that shows the details of the automobile including automobile name, automobile ID, quantity, price etc. “Automobile Management System” is useful for maintaining automobiles, customers effectively and hence helps for establishing good relation between customer and automobile organization. It contains various customized modules for effectively maintaining automobiles and stock information accurately and safely.
When the automobile is sold to the customer, stock will be reduced automatically. When a new purchase is made, stock will be increased automatically. While selecting automobiles for sale, the proposed software will automatically check for total number of available stock of that particular item, if the total stock of that particular item is less than 5, software will notify the user to purchase the particular item.
Also when the user tries to sale items which are not in stock, the system will prompt the user that the stock is not enough. Customers of this system can search for a automobile; can purchase a automobile easily by selecting fast. On the other hand the stock of automobiles can be maintained perfectly by the automobile shop manager overcoming the drawbacks of existing system.
3. Combinational circuit consists of logic gates whose outputs
at any time are determined directly from the present
combination of inputs without regard to previous inputs.
Sequential Circuit employ memory elements in addition to
logic gates. Their outputs are a function of the inputs and
the state of the memory elements.
4.
5. A Combinational circuit consists of input variables, logic
gates and output variables. The gates accept signals from
the Inputs and generate signals to the outputs.
6. Minimum no. of gates.
Minimum no. of inputs to the gates.
Minimum propagation time of the signal through the
circuit.
Minimum no. of interconnections and
Limitations of the driving capabilities of each gate.
7. Half adder is a combinational logic circuit with two inputs
and two outputs.
The half adder circuit is designed to add two single bit
binary number A and B.
It is a basic building block for addition of two single bit
numbers.
8.
9.
10.
11. Full adder is a combinational logic circuit with three
inputs and two outputs.
The three input are two bits to be added and an incoming
carry while output bits are sum bits and a carry.
12.
13.
14.
15.
16. ▪ Half subtractor is a combinational logic circuit with
two inputs and two outputs (Difference & Borrow)
▪ It produces the difference between the two binary bits
at the input and also produces an output (Borrow) to
indicate if a 1 has been borrowed..
17.
18.
19.
20. Full subtractor is a combinational logic circuit with three
inputs and two outputs.
The input are two A, B, Bin while output is Difference &
Borrow.
21.
22.
23.
24.
25. A binary adder is a digital circuit that produces the
arithmetic sum of two binary numbers.
A binary adder can be constructed with full adders
connected in cascade with the output carry form each full
adder connected to the input carry of the next full adder in
the chain.
The four-bit adder is a typical example of a standard
component .It can be used in many application involving
arithmetic operations.
26.
27.
28. The addition and subtraction operations can be combined
into one circuit with one common binary adder by
including an exclusive-OR gate with each full-adder.
29. A comparator is a logic circuit used to compare the
magnitude of two binary numbers.
Depending on the design, it may either simply provide an
output that is active (goes HIGH for example) when two
numbers are equal, or additionally provide outputs that
signify which of the numbers is greater when equality
does not hold.
30.
31. X-OR gates are very useful in systems requiring error detection
& correction codes.
Binary data when transmitted through air interface can get
corrupted which changes 0’s to 1’s and 1’s to 0’s.
To detect such errors a “PARITY BIT” is added to data bits and
are transmitted.
At the receiver end the number of 1’s is counted and error if
any is detected.
The Parity check can detect only single bit errors.
In order to check or generate proper parity bits basic principle
is “ The modulo sum of even number of 1’s is always 0 and
modulo sum of odd number of 1’s is always 1”.
32.
33.
34. Multiplexer is a special type of combinational circuit
which has a number of inputs but only one output.
Multiplexer is a circuit which transmits large number of
information signals over a single line.
Multiplexer is also known as “Data Selector” or MUX.
In most of the electronic systems, the digital data is
available on more than one lines. It is necessary to route
this data over a single line. Under such circumstances we
require a circuit which select one of the many inputs at a
time and the circuit is MULTIPLXER.
35.
36. ▪ There is also an Enable Input which when “0” the
MUX is in OFF state and when “1” is in ON state.
37.
38.
39.
40.
41. In a 8:1 MUX, there are 3 select lines to choose from a
total combination of 8 input lines and by means of 3 select
lines one combination can be chosen at a time.
We need three (3) select lines because 2^(3)=8 and 8
combinations of input can easily be handled by using 3
select lines.
Moreover we also have a Enable Input, which should
mandatorily be at Logic 1 i.e HIGH (or in electrical terms
it should have 5V or 15V)
45. It reduces the number of wires.
So it reduces the circuit complexity and cost.
We can implement many combinational circuits using
MULTIPLEXER.
It simplifies the logic design.
It does not need the k-map and simplification
46. It is used as a data selector to select one out of many data
inputs.
It is used for simplification of logic design.
It is used in data acquisition system.
In designing the combinational circuits.
In Digital to Analog converters.
To minimize the number of connections.
47.
48.
49.
50.
51. A de-multiplexer performs the reverse operation of a
multiplexer i.e. it receives one input and distributes it over
several outputs.
At a time only one output line is selected by the select
lines and the input is transmitted to the selected output
line.
It has only one input line, n number of output lines and m
number of select lines.
52.
53.
54.
55.
56.
57.
58.
59.
60.
61.
62. An encoder is a device whose input are decimal digits
and/or alphabetic character and whose outputs are coded
representation of those inputs.
In other words an encoder is a device which converts
familiar numbers or symbols into coded format.
Encoder performs encoding i.e encoding is the process of
converting familiar numbers or symbols into a coded
format.
An encoder has a number of input lines, only one of which
is activated at a given time, and produces an N-bit output
code depending on which input is activated.
63. ▪ This is the block diagram
of an encoder.
▪It has 2^(n) input lines
and n output line.
▪It is more or less similar
to MUX.
64. Let 4 to 2 Encoder has four inputs Y3, Y2, Y1 & Y0 and
two outputs A1 & A0. The block diagram of 4 to 2
Encoder is shown in the following figure.
67. An Octal to Binary Encoder (8:3 Line Encoder) accepts 8
input line and produces 3 bit output code corresponding to
activated input.
Block Diagram of 8:3 Line Encoder
68.
69.
70. In a decimal to BCD encoder we have 10 inputs-one for
each decimal digit and 4 outputs corresponding to BCD
Code
This a basic 10:4 line encoder.
71.
72. From the table we get
Y3=D8+D9
Y2= D4+D5+ D6+D7
Y1= D2+D3+ D6+D7
Y0= D1+D3+ D5+D7+D9
73.
74. A decoder is a logic circuit that converts an N-bit binary
input code into M-output lines such that only one output
line is activated for each one of possible combinations of
inputs.
In other words a decoder identifies or recognizes or
detects a particular code.
Since N inputs can be a 0 or a 1, there are 2^(N) possible
input combinations or codes. For each of these input
combinations only one of M outputs will be active
(HIGH) all other outputs will remain inactive (LOW).
75.
76.
77. It has three inputs and eight outputs.
It uses all AND gates and therefore outputs are all active
HIGH.
For active LOW input NAND gates are used.
It is also called Binary to Octal Decoder because it takes
3-bit binary input code and activates one of the eight
(octal) outputs corresponding to that code.
It is also referred to as 1-of-8 decoder because only one of
eight outputs is activated at one time.
78. ▪ There are three input A,B & C and corresponding to
three inputs we have 8 outputs.
▪Combination of A,B & C gives one output at a time.
79.
80. This type of decoder accepts the BCD Code and provides
outputs to energize seven segment display devices in order
to produce a decimal read out.
Sometimes HEX Characters A-F may also be produced.
Each segment is made up of material that emits light when
current flows through it.
Common examples are LED’s, Incandescent Filaments
and LCD’s.
The seven segment display has seven light emitting
segments.
81.
82.
83. In common anode LED, a low voltage applied to an LED
cathode allows current to flow through the diode which
causes it to emit light.
In common cathode type, a high voltage is applied to an
LED anode causes current to flow and produce resulting
light emission.