The Unix operating system was developed in 1969 by Ken Thompson, Dennis Ritchie, Douglas McIlroy, and Joe Ossanna at Bell Labs. It uses a kernel to manage hardware interactions and processes, memory, file systems, and device access. The shell interprets commands from users and passes them to the kernel. There are various shells like C Shell, Bourne Shell, and Korn Shell. Unix organizes all data into files within a hierarchical directory structure.
Presentation about Operating System.
including file management.process management,multitasking,different kind of operating system,some popular operating system
System Programming
Operating System
Shell Programming
File Management
Process Management
Signals
Thread Management
Interprocess Communication
Network Interprocess Communication
UNIX Internals - UNIT-I, General Overview of the system, General Overview of the UNIX system, General Overview of the system in UNIX,General Overview of the system of UNIX
Overview of Operating System, Need for OS, Structure, OS Types, Examples of OS (desktop and mobile) Dual mode operation, Kernel and microkernel, Functions of OS User interfaces; Corporate Vs Personal needs; Types of OS Installation.
Presentation about Operating System.
including file management.process management,multitasking,different kind of operating system,some popular operating system
System Programming
Operating System
Shell Programming
File Management
Process Management
Signals
Thread Management
Interprocess Communication
Network Interprocess Communication
UNIX Internals - UNIT-I, General Overview of the system, General Overview of the UNIX system, General Overview of the system in UNIX,General Overview of the system of UNIX
Overview of Operating System, Need for OS, Structure, OS Types, Examples of OS (desktop and mobile) Dual mode operation, Kernel and microkernel, Functions of OS User interfaces; Corporate Vs Personal needs; Types of OS Installation.
Democratizing Fuzzing at Scale by Abhishek Aryaabh.arya
Presented at NUS: Fuzzing and Software Security Summer School 2024
This keynote talks about the democratization of fuzzing at scale, highlighting the collaboration between open source communities, academia, and industry to advance the field of fuzzing. It delves into the history of fuzzing, the development of scalable fuzzing platforms, and the empowerment of community-driven research. The talk will further discuss recent advancements leveraging AI/ML and offer insights into the future evolution of the fuzzing landscape.
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.
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.
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.
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.
TECHNICAL TRAINING MANUAL GENERAL FAMILIARIZATION COURSEDuvanRamosGarzon1
AIRCRAFT GENERAL
The Single Aisle is the most advanced family aircraft in service today, with fly-by-wire flight controls.
The A318, A319, A320 and A321 are twin-engine subsonic medium range aircraft.
The family offers a choice of engines
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
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.
Planning Of Procurement o different goods and services
LinuxOS-1 (1).ppt
1.
2. The Unix operating system is a set of programs that act
as a link between the computer and the user.
Unix was originally developed in 1969 by a group of
AT&T employees Ken Thompson, Dennis Ritchie,
Douglas McIlroy, and Joe Ossanna at Bell Labs.
There are various Unix variants available in the
market. Solaris Unix, AIX, HP Unix and BSD are a few
examples. Linux is also a flavor of Unix which is freely
available.
3. Several people can use a Unix computer at the
same time; hence Unix is called a multiuser
system.
A user can also run multiple programs at the same
time; hence Unix is a multitasking environment.
4. Users communicate with the kernel through a
program known as the shell. The shell is a
command line interpreter; it translates commands
entered by the user and converts them into a
language that is understood by the kernel.
6. The kernel is the heart of the operating system. It
interacts with the hardware and most of the tasks like
memory management, task scheduling and file
management.
SOME OTHER FUNCTIONS PERFORMED BY THE
KERNEL IN UNIX SYSTEM ARE:
Managing the machine’s memory and allocating it to each
process and decides their priorities.
Scheduling the work done by the CPU so that the work of
each user is carried out as efficiently as is possible.
7. Organizing the transfer of data from one part of
the machine to another.
Accepting instructions from the unix shell and
carrying them out.
Enforcing the access permissions that are in force
on the file system
8. The shell is the utility that processes your requests. When
you type in a command at your terminal, the shell
interprets the command and calls the program that you
want. The shell uses standard syntax for all commands. C
Shell, Bourne Shell and Korn Shell are the most famous
shells which are available with most of the Unix variants.
9. You can use any one of these unix shells if they are
available on your system. And you can switch
between the different unix shells once you have
found out if they are available.
TC shell (tcsh)
Korn shell (ksh)
Bourne Again SHell (bash)
Bourne shell (sh)
C shell (csh)
10. There are various commands and utilities which you can
make use of in your day to day activities. cp, mv,
cat and grep, etc. are few examples of commands and
utilities. There are over 250 standard commands plus
numerous others provided through 3rd party software.
All the commands come along with various options.
11. All the data of Unix is organized into files. All files are
then organized into directories. These directories are
further organized into a tree-like structure called the
files ystem.
12. 1. Security
The operating system uses password protection to protect
user data and similar other techniques. it also prevents
unauthorized access to programs and user data.
2. Control over system performance
Monitors overall system health to help improve performance.
records the response time between service requests and
system response to have a complete view of the system
health. This can help improve performance by providing
important information needed to troubleshoot
problems.
13. 3. Job accounting
Operating system Keeps track of time and resources used by
various tasks and users, this information can be used to
track resource usage for a particular user or group of user.
4. Error detecting aids
Operating system constantly monitors the system to detect
errors and avoid the malfunctioning of computer system.
14. 5.Coordination between other software and users
Operating systems also coordinate and assign interpreters,
compilers, assemblers and other software to the various
users of the computer systems.
6.Memory Management
The operating system manages the Primary Memory or Main
Memory. Main memory is made up of a large array of bytes
or words where each byte or word is assigned a certain
address. Main memory is a fast storage and it can be
accessed directly by the CPU. For a program to be executed,
it should be first loaded in the main memory.
15. 7. Processor Management
In a multi programming environment, the OS decides the
order in which processes have access to the processor, and
how much processing time each process has. This
function of OS is called process scheduling. An Operating
System performs the following activities for processor
management.
8. Device Management
An OS manages device communication via their respective
drivers. It performs the following activities for device
management. Keeps tracks of all devices connected to
system. designates a program responsible for every device
known as the Input/Output controller.
16. 9. File Management
A file system is organized into directories for efficient or
easy navigation and usage. These directories may contain
other directories and other files. An Operating System
carries out the following file management activities. It
keeps track of where information is stored, user access
settings and status of every file and more… These facilities
are collectively known as the file system.
17.
18. a) Hardware layer − Hardware consists of all
peripheral devices (RAM/ HDD/ CPU etc).
b) Kernel − It is the core component of Operating
System, interacts directly with hardware, provides
low level services to upper layer components.
c) Shell − It takes commands from the user and
executes kernel's functions.
d) Utilities − Utility programs that provide the user
most of the functionalities of an operating systems.
19. ⚫It interacts with the actual hardware in machine
language.
⚫It is the monarch who has overall control of
everything.
⚫ It has various functions such as file management ,
data transfer between file system and hardware,
memory management, scheduling of various programs
in the memory, interrupts issues.
20. ⚫The user interface is either a command line interface (CLI),
a graphical user interface (GUI), or through controls are
associated with hardware.
⚫CLI shells are text based user interfaces, which use text for
both input and output.
⚫On desktop systems, the most popular user interfaces are
the GUI shells.
⚫Most popular user interfaces are based on the X Window
System, often simply called "X".