Digital computers represent all data, including numbers, using the binary number system. There are two main methods for representing real numbers: fixed-point notation reserves a fixed number of bits for the integer and fractional parts, while floating-point notation reserves bits for the significand and exponent to allow more flexibility in the number of fractional digits. Fixed-point has better performance but a more limited range, while floating-point can represent a wider range of values but requires more complex operations. Common number representations like two's complement are used to support arithmetic operations.
Computer arithmetics (computer organisation & arithmetics) pptSuryaKumarSahani
This is a presentation of explanation of various computer arithmetic including Binary addition, subtraction, multiplication and division. Also Floating point addition, subtraction, multiplication, and division operations.
Computer arithmetics (computer organisation & arithmetics) pptSuryaKumarSahani
This is a presentation of explanation of various computer arithmetic including Binary addition, subtraction, multiplication and division. Also Floating point addition, subtraction, multiplication, and division operations.
• Register Transfer Language
• Register Transfer
• Bus and Memory Transfers
• Arithmetic Microoperations
• Logic Microoperations
• Shift Microoperations
• Arithmetic Logic Shift Unit
Memory reference instructions used in computer architecture is well demonstrated with examples. It will probably help you understand each referencing instructions.
Implementation and Simulation of Ieee 754 Single-Precision Floating Point Mul...inventionjournals
International Journal of Engineering and Science Invention (IJESI) is an international journal intended for professionals and researchers in all fields of computer science and electronics. IJESI publishes research articles and reviews within the whole field Engineering Science and Technology, new teaching methods, assessment, validation and the impact of new technologies and it will continue to provide information on the latest trends and developments in this ever-expanding subject. The publications of papers are selected through double peer reviewed to ensure originality, relevance, and readability. The articles published in our journal can be accessed online.
• Register Transfer Language
• Register Transfer
• Bus and Memory Transfers
• Arithmetic Microoperations
• Logic Microoperations
• Shift Microoperations
• Arithmetic Logic Shift Unit
Memory reference instructions used in computer architecture is well demonstrated with examples. It will probably help you understand each referencing instructions.
Implementation and Simulation of Ieee 754 Single-Precision Floating Point Mul...inventionjournals
International Journal of Engineering and Science Invention (IJESI) is an international journal intended for professionals and researchers in all fields of computer science and electronics. IJESI publishes research articles and reviews within the whole field Engineering Science and Technology, new teaching methods, assessment, validation and the impact of new technologies and it will continue to provide information on the latest trends and developments in this ever-expanding subject. The publications of papers are selected through double peer reviewed to ensure originality, relevance, and readability. The articles published in our journal can be accessed online.
This is the second lesson of Computer and Network Technology subject of BCS HEQ Certificate Level exam.
Subject: Computer and Network Technology (CNT)
Chapter: Fundamentals
Lesson: Data Representation in Computers
This lesson discuss about how integers, floating point numbers and characters are handled by modern computers.
For more lessons please visit https://www.bcsonlinelectures.com website.
index of all of the financial accounts in a company's general ledger. In shor...mayurjagdale4
index of all of the financial accounts in a company's general ledger. In short, it is an organizational tool that lists by category and line item all of the financial transactions that a company conducted during a specific accounting period
Computer Architecture refers to those attributes of a system that have a dire...mayurjagdale4
Computer Architecture refers to those attributes of a system that have a direct impact on
the logical execution of a program. Examples:
o the instruction set
o the number of bits used to represent various data types
o I/O mechanisms
o memory addressing techniques
The manual introduces the reader to the logic of arithmetic operations in computers, the logics of Boolean and Zhegalkin, the logic of decomposition, research and minimization of Boolean functions, the logic of temporal and recurrent Boolean functions, the theory of automata and regular operations, and on their basis the logic of building various computers computer circuits. Considerable attention is paid to the correct application of precise notations, definitions, simplified proof of theorems, logic and algorithms for building computer circuits.
Unsigned and Signed fixed point Addition and subtractionciyamala kushbu
This content covers second unit COMPUTER ARCHITECTURE AND ORGANIZATION framed as per syllabus of Anna University 2017 Regulation.. This upload covers what is fixed and floating point operations. In fixed point operations the unsigned and signed addition and subtraction has been covered .
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
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.
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.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
2. FIXED POIN NUMBER
REPRESENTATION
• Digital Computers use Binary number system to
represent all types of information inside the
computers. Alphanumeric characters are
represented using binary bits (i.e., 0 and 1). Digital
representations are easier to design, storage is easy,
accuracy and precision are greater.
• There are various types of number representation
techniques for digital number representation, for
example: Binary number system, octal number
system, decimal number system, and hexadecimal
number system etc. But Binary number system is
most relevant and popular for representing numbers
in digital computer system.
4. • There are two major approaches to store real
numbers (i.e., numbers with fractional
component) in modern computing.
• These are (i) Fixed Point Notation and (ii)
Floating Point Notation.
• In fixed point notation, there are a fixed
number of digits after the decimal point,
whereas floating point number allows for a
varying number of digits after the decimal
point
5. Fixed-Point Representation −
• This representation has fixed number of bits
for integer part and for fractional part.
• For example, if given fixed-point
representation is IIII.FFFF, then you can store
minimum value is 0000.0001 and maximum
value is 9999.9999. There are three parts of a
fixed-point number representation: the sign
field, integer field, and fractional field.
6. We can represent these numbers using:
Signed representation: range from -(2(k-1)-1) to (2(k-1)-
1), for k bits.
1’s complement representation: range from -(2(k-1)-1)
to (2(k-1)-1), for k bits.
2’s complementation representation: range from -(2(k-
1)) to (2(k-1)-1), for k bits.
7. 2’s complementation representation is preferred in computer
system because of unambiguous property and easier for
arithmetic operations.
Example −Assume number is using 32-bit format which reserve
1 bit for the sign, 15 bits for the integer part and 16 bits for the
fractional part.
Then, -43.625 is represented as following:
Where, 0 is used to represent + and 1 is used to represent.
000000000101011 is 15 bit binary value for decimal 43 and
1010000000000000 is 16 bit binary value for fractional 0.625.
8. • The advantage of using a fixed-point representation is performance and
disadvantage is relatively limited range of values that they can represent.
So, it is usually inadequate for numerical analysis as it does not allow
enough numbers and accuracy. A number whose representation exceeds
32 bits would have to be stored inexactly.
These are above smallest positive number and largest positive
number which can be store in 32-bit representation as given above
format. Therefore, the smallest positive number is 2-16 ≈ 0.000015
approximate and the largest positive number is (215-1)+(1-2-16)=215(1-
2-16) =32768, and gap between these numbers is 2-16.
9. Floating-Point Representation −
– This representation does not reserve a specific number of bits for the
integer part or the fractional part. Instead it reserves a certain number
of bits for the number (called the mantissa or significand) and a certain
number of bits to say where within that number the decimal place sits
(called the exponent).
– The floating number representation of a number has two part: the first
part represents a signed fixed point number called mantissa. The
second part of designates the position of the decimal (or binary) point
and is called the exponent. The fixed point mantissa may be fraction or
an integer. Floating -point is always interpreted to represent a number
in the following form: Mxre.
10. • Only the mantissa m and the exponent e are
physically represented in the register
(including their sign).
• A floating-point binary number is represented
in a similar manner except that is uses base 2
for the exponent. A floating-point number is
said to be normalized if the most significant
digit of the mantissa is 1.
• signed integers and exponent are represented
by either sign representation, or one’s
complement representation, or two’s
complement representation.
11.
12.
13.
14.
15.
16. Simple Adders
Figures 10.1/10.2 Binary half-adder (HA) and full-adder (FA).
x y c s
0 0 0 0
0 1 0 1
1 0 0 1
1 1 1 0
Inputs Outputs
HA
x y
c
s
x y c c s
0 0 0 0 0
0 0 1 0 1
0 1 0 0 1
0 1 1 1 0
1 0 0 0 1
1 0 1 1 0
1 1 0 1 0
1 1 1 1 1
Inputs Outputs
cout cin
out
in x y
s
FA
Digit-set interpretation:
{0, 1} + {0, 1}
= {0, 2} + {0, 1}
Digit-set interpretation:
{0, 1} + {0, 1} + {0, 1}
= {0, 2} + {0, 1}
17. Full-Adder Implementations
Figure10.3 Full adder implemented with two half-adders, by means of
two 4-input multiplexers, and as two-level gate network.
(a) FA built of two HAs
(c) Two-level AND-OR FA
(b) CMOS mux-based FA
1
0
3
2
HA
HA
1
0
3
2
0
1
x
y
x
y
x
y
s
s
s
cout
cout
cout
cin
cin
cin
18. Ripple-Carry Adder: Slow But Simple
Figure 10.4 Ripple-carry binary adder with 32-bit inputs and output.
x
s
y
c
c
x
s
y
c
x
s
y
c
cout cin
0 0
0
c0
1 1
1
1
2
31
31
31
31
FA FA FA
32
. . .
Critical path
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54. CSE431 Chapter 3.54 Irwin, PSU, 2008
Unsigned Multiplications
Multiplications is a complex operation than addition and
subtraction.
It can be performed in hardware and software
Multiplication process involves generation of partial
products, one for each digit in multiplier.
These partial product are summed in to final product.
Before summing operation each successive partial
product is shifted one position to the left relative to the
preceding partial product
The product of two n digit numbers can be
accommodated in 2n digits, so the product of the two 4
bit numbers fits in to 8bits
55. CSE431 Chapter 3.55 Irwin, PSU, 2008
Multiply
Binary multiplication is just a bunch of right shifts and
adds
multiplicand
multiplier
partial
product
array
double precision product
n
2n
n
can be formed in parallel
and added in parallel for
faster multiplication