The document discusses the key system services provided by operating systems. It describes seven common services: program execution, input/output operations, file system manipulation, communications, error detection, resource allocation, and protection. For each service, it provides details on how the operating system handles and abstracts the low-level hardware operations to provide a more convenient interface for users and programs. It also discusses system calls which allow programs to interface with the operating system to utilize these services.
Swapping is the process of exchanging pages, segment of memory and values to another location and it also manipulates data files that are larger than the main memory. Copy the link given below and paste it in new browser window to get more information on Swapping:- http://www.transtutors.com/homework-help/computer-science/operating-system/memory-management/swapping/
In this presentation, I am explaining about Threads, types of threads, its advantages and disadvantages, difference between Process and Threads, multithreading and its type.
"Like the ppt if you liked the ppt"
LinkedIn - https://in.linkedin.com/in/prakharmaurya
Overview of Network Programming, Remote Procedure Calls, Remote Method Invocation, Message Oriented Communication, and web services in distributed systems
Overview - Functions of an Operating System – Design Approaches – Types of Advanced
Operating System - Synchronization Mechanisms – Concept of a Process, Concurrent
Processes – The Critical Section Problem, Other Synchronization Problems – Language
Mechanisms for Synchronization – Axiomatic Verification of Parallel Programs - Process
Deadlocks - Preliminaries – Models of Deadlocks, Resources, System State – Necessary and
Sufficient conditions for a Deadlock – Systems with Single-Unit Requests, Consumable
Resources, Reusable Resources.
In this presentation, you will learn the fundamentals of Multi Processors and Multi Computers in only a few minutes.
Meanings, features, attributes, applications, and examples of multiprocessors and multi computers.
So, let's get started. If you enjoy this and find the information beneficial, please like and share it with your friends.
Swapping is the process of exchanging pages, segment of memory and values to another location and it also manipulates data files that are larger than the main memory. Copy the link given below and paste it in new browser window to get more information on Swapping:- http://www.transtutors.com/homework-help/computer-science/operating-system/memory-management/swapping/
In this presentation, I am explaining about Threads, types of threads, its advantages and disadvantages, difference between Process and Threads, multithreading and its type.
"Like the ppt if you liked the ppt"
LinkedIn - https://in.linkedin.com/in/prakharmaurya
Overview of Network Programming, Remote Procedure Calls, Remote Method Invocation, Message Oriented Communication, and web services in distributed systems
Overview - Functions of an Operating System – Design Approaches – Types of Advanced
Operating System - Synchronization Mechanisms – Concept of a Process, Concurrent
Processes – The Critical Section Problem, Other Synchronization Problems – Language
Mechanisms for Synchronization – Axiomatic Verification of Parallel Programs - Process
Deadlocks - Preliminaries – Models of Deadlocks, Resources, System State – Necessary and
Sufficient conditions for a Deadlock – Systems with Single-Unit Requests, Consumable
Resources, Reusable Resources.
In this presentation, you will learn the fundamentals of Multi Processors and Multi Computers in only a few minutes.
Meanings, features, attributes, applications, and examples of multiprocessors and multi computers.
So, let's get started. If you enjoy this and find the information beneficial, please like and share it with your friends.
Definition of Computer
Classification of Computer
Applications of Computer
Block Diagram and Working of Computer System
Different Peripheral Devices
Main Storage and Auxiliary Storage Devices
Computer Hardware and Software
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
Le nuove frontiere dell'AI nell'RPA con UiPath Autopilot™UiPathCommunity
In questo evento online gratuito, organizzato dalla Community Italiana di UiPath, potrai esplorare le nuove funzionalità di Autopilot, il tool che integra l'Intelligenza Artificiale nei processi di sviluppo e utilizzo delle Automazioni.
📕 Vedremo insieme alcuni esempi dell'utilizzo di Autopilot in diversi tool della Suite UiPath:
Autopilot per Studio Web
Autopilot per Studio
Autopilot per Apps
Clipboard AI
GenAI applicata alla Document Understanding
👨🏫👨💻 Speakers:
Stefano Negro, UiPath MVPx3, RPA Tech Lead @ BSP Consultant
Flavio Martinelli, UiPath MVP 2023, Technical Account Manager @UiPath
Andrei Tasca, RPA Solutions Team Lead @NTT Data
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
Welocme to ViralQR, your best QR code generator.ViralQR
Welcome to ViralQR, your best QR code generator available on the market!
At ViralQR, we design static and dynamic QR codes. Our mission is to make business operations easier and customer engagement more powerful through the use of QR technology. Be it a small-scale business or a huge enterprise, our easy-to-use platform provides multiple choices that can be tailored according to your company's branding and marketing strategies.
Our Vision
We are here to make the process of creating QR codes easy and smooth, thus enhancing customer interaction and making business more fluid. We very strongly believe in the ability of QR codes to change the world for businesses in their interaction with customers and are set on making that technology accessible and usable far and wide.
Our Achievements
Ever since its inception, we have successfully served many clients by offering QR codes in their marketing, service delivery, and collection of feedback across various industries. Our platform has been recognized for its ease of use and amazing features, which helped a business to make QR codes.
Our Services
At ViralQR, here is a comprehensive suite of services that caters to your very needs:
Static QR Codes: Create free static QR codes. These QR codes are able to store significant information such as URLs, vCards, plain text, emails and SMS, Wi-Fi credentials, and Bitcoin addresses.
Dynamic QR codes: These also have all the advanced features but are subscription-based. They can directly link to PDF files, images, micro-landing pages, social accounts, review forms, business pages, and applications. In addition, they can be branded with CTAs, frames, patterns, colors, and logos to enhance your branding.
Pricing and Packages
Additionally, there is a 14-day free offer to ViralQR, which is an exceptional opportunity for new users to take a feel of this platform. One can easily subscribe from there and experience the full dynamic of using QR codes. The subscription plans are not only meant for business; they are priced very flexibly so that literally every business could afford to benefit from our service.
Why choose us?
ViralQR will provide services for marketing, advertising, catering, retail, and the like. The QR codes can be posted on fliers, packaging, merchandise, and banners, as well as to substitute for cash and cards in a restaurant or coffee shop. With QR codes integrated into your business, improve customer engagement and streamline operations.
Comprehensive Analytics
Subscribers of ViralQR receive detailed analytics and tracking tools in light of having a view of the core values of QR code performance. Our analytics dashboard shows aggregate views and unique views, as well as detailed information about each impression, including time, device, browser, and estimated location by city and country.
So, thank you for choosing ViralQR; we have an offer of nothing but the best in terms of QR code services to meet business diversity!
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
A tale of scale & speed: How the US Navy is enabling software delivery from l...sonjaschweigert1
Rapid and secure feature delivery is a goal across every application team and every branch of the DoD. The Navy’s DevSecOps platform, Party Barge, has achieved:
- Reduction in onboarding time from 5 weeks to 1 day
- Improved developer experience and productivity through actionable findings and reduction of false positives
- Maintenance of superior security standards and inherent policy enforcement with Authorization to Operate (ATO)
Development teams can ship efficiently and ensure applications are cyber ready for Navy Authorizing Officials (AOs). In this webinar, Sigma Defense and Anchore will give attendees a look behind the scenes and demo secure pipeline automation and security artifacts that speed up application ATO and time to production.
We will cover:
- How to remove silos in DevSecOps
- How to build efficient development pipeline roles and component templates
- How to deliver security artifacts that matter for ATO’s (SBOMs, vulnerability reports, and policy evidence)
- How to streamline operations with automated policy checks on container images
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
SAP Sapphire 2024 - ASUG301 building better apps with SAP Fiori.pdfPeter Spielvogel
Building better applications for business users with SAP Fiori.
• What is SAP Fiori and why it matters to you
• How a better user experience drives measurable business benefits
• How to get started with SAP Fiori today
• How SAP Fiori elements accelerates application development
• How SAP Build Code includes SAP Fiori tools and other generative artificial intelligence capabilities
• How SAP Fiori paves the way for using AI in SAP apps
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
2. System services :- the OS provides the environment for the
execution of program. It provides users the services to execute
the programs in a convenient manner. The specific services
provided will different form one to another OS ,but there are
some common services of OS that we can identify .these OS
services are provided for the convenience of the programmer ,to
make the programming task easier.
4. Program execution :-The purpose of computer system is to allow
the users to execute programs in an efficient manner. The operating
system provides an environment where the user can conveniently run
these programs. The user doesn’t have to worry about
the memory allocation or de-allocation or any other thing because these
things are taken care by the operating system.
To run program , first loaded into the RAM and then to assign CPU time for
its execution.
other important tasks like allocation and de-allocation of memory, CPU
scheduling etc perform OS itself.
5. Input/Output operation :-Each program requires an input and after
processing the input submitted by user it produces output. The operating
system hides the user from all these details of underlying hardware for the
I/O. So the operating system makes the users convenient to run programs
by providing I/O functions. The I/O service cannot be provided by user-level
programs and it must be provided by the operating system.
6. File-system manipulation :-While working on the computer, generally a user is
required to manipulate various types of files like as opening a file, saving a file
and deleting a file from the storage disk. This is an important task that is also
performed by the operating system.
Thus operating system makes it easier for the user programs to accomplish their
task by providing the file system manipulation service. This service is performed
by the 'Secondary Storage Management' a part of the operating system.
Communications :-Operating system performs the communication among various
types of processes in the form of shared memory. In multitasking environment,
the processes need to communicate with each other and to exchange
their information. These processes are created under a hierarchical structure
where the main process is known as parent process and the sub processes are
known as child processes.
7. Error detection :-OS also deals with hardware problems. To avoid hardware
problems the OS constantly monitors the system for detecting the errors and
fixing these errors (if found). The main function of OS is to detect the errors
like bad sectors on hard disk, memory overflow and errors related to I/O
devices. After detecting the errors, OS takes an appropriate action for
consistent computing.
This service of error detection and error correction cannot be handled by
user programs because it involves monitoring the entire computing process.
These tasks are too critical to be handed over to the user programs.
8. Resource allocation :-In the multitasking environment, when multiple jobs are
running at a time, it is the responsibility of an OS to allocate the required
resources (like as CPU, main memory, tape drive or secondary storage etc.)
to each process for its better utilization. For this purpose various types of
algorithms are implemented such as process scheduling, CPU scheduling,
disk scheduling etc.
Protection :-If a computer system has multiple users and allows the
concurrent execution of multiple processes, then the various processes
must be protected from one another's activities.
9. System calls provide the interface b/w a process and OS .these calls are generally available
as assembly-language instructions .these are usually listen in the manuals used by
assembly-language programmers.
Some system may allow system calls to be made directly from a higher level language
program .they may generate a call to a special run-time routine that makes the system
call or the system call may be generated directly in-line.
C(Compiler) , Bliss(Basic Language for Implementation of System Software)
BCPL (Basic Combined Programming Language)
PERL(Practical Extraction and Reporting Language)
These language are defined to replace assembly language for system programming .some
Pascal also provide an ability to make system calls directly form a Pascal program to the
OS.
10. To understand system calls, first one needs to understand the difference between kernel
mode and user mode of a CPU.
System Call
When a program in user mode requires access to RAM or a hardware resource, it must ask
the kernel to provide access to that resource. This is done via something called a system
call.
When a program makes a system call, the mode is switched from user mode to kernel mode.
This is called a context switch.
Generally, system calls are made by the user level programs in the following situations:
A. Creating, opening, closing and deleting files in the file system.
B. Creating and managing new processes.
C. Creating a connection in the network, sending and receiving packets.
D. Requesting access to a hardware device, like a mouse or a printer.
E. system supports these two modes.
11. Kernel Mode
When CPU is in kernel mode, the code being executed can access any memory
address and any hardware resource.
• It is a very privileged and powerful mode.
• If a program crashes in kernel mode, the entire system will be halted.
User Mode
When CPU is in user mode, the programs don’t have access to memory and
hardware resources .
In user mode, if any program crashes, only that particular program is halted.
That means the system will be in a safe state even if
a program in user mode crashes .most
programs in an OS run in user mode.