An operating system acts as an interface between computer hardware and software, managing computer resources and allowing users to run application programs. There are several types of operating systems including batch, time-sharing, distributed, network, and real-time systems. The five most common operating systems are Ubuntu, Android, Mac OS X, iOS, and Windows, each having their own unique features and compatibility with different hardware.
This presentation gives a brief overview of the concept of Operating Systems to the newbies, and helps to familiarize them with some of the most popular operating systems out there and their features.
This presentation gives a brief overview of the concept of Operating Systems to the newbies, and helps to familiarize them with some of the most popular operating systems out there and their features.
Introduction to operating system
Types of operating system:
1.Unix
2.Linux
3.Windows
4.Android
In this:
1. Introduction of various type
2. History
3. Features
4. Versions
5. Advantages and disadvantages
Theory related to OS :
It Includes:
1. Unit I (COMPONENTS OF COMPUTER SYSTEM)
2. Unit II (OPERATING SYSTEM STRUCTURE)
3. Unit III (PROCESS MANAGEMENT)
4. Unit IV (MEMORY MANAGEMENT)
5. Unit V (FILE SYSTEM)
6. Unit VI (INPUT OUTPUT SYSTEM)
FellowBuddy.com is an innovative platform that brings students together to share notes, exam papers, study guides, project reports and presentation for upcoming exams.
We connect Students who have an understanding of course material with Students who need help.
Benefits:-
# Students can catch up on notes they missed because of an absence.
# Underachievers can find peer developed notes that break down lecture and study material in a way that they can understand
# Students can earn better grades, save time and study effectively
Our Vision & Mission – Simplifying Students Life
Our Belief – “The great breakthrough in your life comes when you realize it, that you can learn anything you need to learn; to accomplish any goal that you have set for yourself. This means there are no limits on what you can be, have or do.”
Like Us - https://www.facebook.com/FellowBuddycom
Introduction to operating system
Types of operating system:
1.Unix
2.Linux
3.Windows
4.Android
In this:
1. Introduction of various type
2. History
3. Features
4. Versions
5. Advantages and disadvantages
Theory related to OS :
It Includes:
1. Unit I (COMPONENTS OF COMPUTER SYSTEM)
2. Unit II (OPERATING SYSTEM STRUCTURE)
3. Unit III (PROCESS MANAGEMENT)
4. Unit IV (MEMORY MANAGEMENT)
5. Unit V (FILE SYSTEM)
6. Unit VI (INPUT OUTPUT SYSTEM)
FellowBuddy.com is an innovative platform that brings students together to share notes, exam papers, study guides, project reports and presentation for upcoming exams.
We connect Students who have an understanding of course material with Students who need help.
Benefits:-
# Students can catch up on notes they missed because of an absence.
# Underachievers can find peer developed notes that break down lecture and study material in a way that they can understand
# Students can earn better grades, save time and study effectively
Our Vision & Mission – Simplifying Students Life
Our Belief – “The great breakthrough in your life comes when you realize it, that you can learn anything you need to learn; to accomplish any goal that you have set for yourself. This means there are no limits on what you can be, have or do.”
Like Us - https://www.facebook.com/FellowBuddycom
Presentation of context: Web Annotations (& Pundit) during the StoM Project (...Net7
This is one of the presentations used for the StoM project final review (http://www.stom-project.eu/). It aims at presenting the state of the art for Web Annotation and how the evolutions in this area that happened in the last two years have been taken into account to improve Net7's Semantic Annotation System Pundit (http://thepund.it/).
This is my sort note of operating system.In this note we describe our knowledge for B.Sc level. Student of B.Sc(H) Computer Science this note is good. We describe this note very easy language which the student easily understand.
Introduction to Operating Systems: Function, Evolution, Different Types, Desirable Characteristics and features of an O/S, Operating Systems Services: Types of Services, Different ways of providing these Services – Utility Programs, System Calls.
4 Module - Operating Systems Configuration and Use by Mark John LadoMark John Lado, MIT
4 Module - Operating Systems Configuration and Use
More on https://www.markjohn.cf/courses
This course will deliberate on the basics of an operating system, which may include Computer Memory, the Operating System, its Graphical User Interface, The Windows Operating System, and Desktop, Operating System Installation.
Embedded System,
Real Time Operating System Concept
Architecture of kernel
Task
Task States
Task scheduler
ISR
Semaphores
Mailbox
Message queues
Pipes
Events
Timers
Memory management
Introduction to Ucos II RTOS
Study of kernel structure of Ucos II
Synchronization in Ucos II
Inter-task communication in Ucos II
Memory management in Ucos II
Porting of RTOS.
Advanced computer architecture lesson 1 and 2Ismail Mukiibi
An OS is a program that controls the execution of application programs and acts as an interface between the user of a computer and the computer hardware. .....................
FellowBuddy.com is an innovative platform that brings students together to share notes, exam papers, study guides, project reports and presentation for upcoming exams.
We connect Students who have an understanding of course material with Students who need help.
Benefits:-
# Students can catch up on notes they missed because of an absence.
# Underachievers can find peer developed notes that break down lecture and study material in a way that they can understand
# Students can earn better grades, save time and study effectively
Our Vision & Mission – Simplifying Students Life
Our Belief – “The great breakthrough in your life comes when you realize it, that you can learn anything you need to learn; to accomplish any goal that you have set for yourself. This means there are no limits on what you can be, have or do.”
Like Us - https://www.facebook.com/FellowBuddycom
In his public lecture, Christian Timmerer provides insights into the fascinating history of video streaming, starting from its humble beginnings before YouTube to the groundbreaking technologies that now dominate platforms like Netflix and ORF ON. Timmerer also presents provocative contributions of his own that have significantly influenced the industry. He concludes by looking at future challenges and invites the audience to join in a discussion.
Essentials of Automations: The Art of Triggers and Actions in FMESafe Software
In this second installment of our Essentials of Automations webinar series, we’ll explore the landscape of triggers and actions, guiding you through the nuances of authoring and adapting workspaces for seamless automations. Gain an understanding of the full spectrum of triggers and actions available in FME, empowering you to enhance your workspaces for efficient automation.
We’ll kick things off by showcasing the most commonly used event-based triggers, introducing you to various automation workflows like manual triggers, schedules, directory watchers, and more. Plus, see how these elements play out in real scenarios.
Whether you’re tweaking your current setup or building from the ground up, this session will arm you with the tools and insights needed to transform your FME usage into a powerhouse of productivity. Join us to discover effective strategies that simplify complex processes, enhancing your productivity and transforming your data management practices with FME. Let’s turn complexity into clarity and make your workspaces work wonders!
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Goodbye Windows 11: Make Way for Nitrux Linux 3.5.0!SOFTTECHHUB
As the digital landscape continually evolves, operating systems play a critical role in shaping user experiences and productivity. The launch of Nitrux Linux 3.5.0 marks a significant milestone, offering a robust alternative to traditional systems such as Windows 11. This article delves into the essence of Nitrux Linux 3.5.0, exploring its unique features, advantages, and how it stands as a compelling choice for both casual users and tech enthusiasts.
Maruthi Prithivirajan, Head of ASEAN & IN Solution Architecture, Neo4j
Get an inside look at the latest Neo4j innovations that enable relationship-driven intelligence at scale. Learn more about the newest cloud integrations and product enhancements that make Neo4j an essential choice for developers building apps with interconnected data and generative AI.
UiPath Test Automation using UiPath Test Suite series, part 5DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 5. In this session, we will cover CI/CD with devops.
Topics covered:
CI/CD with in UiPath
End-to-end overview of CI/CD pipeline with Azure devops
Speaker:
Lyndsey Byblow, Test Suite Sales Engineer @ UiPath, Inc.
Why You Should Replace Windows 11 with Nitrux Linux 3.5.0 for enhanced perfor...SOFTTECHHUB
The choice of an operating system plays a pivotal role in shaping our computing experience. For decades, Microsoft's Windows has dominated the market, offering a familiar and widely adopted platform for personal and professional use. However, as technological advancements continue to push the boundaries of innovation, alternative operating systems have emerged, challenging the status quo and offering users a fresh perspective on computing.
One such alternative that has garnered significant attention and acclaim is Nitrux Linux 3.5.0, a sleek, powerful, and user-friendly Linux distribution that promises to redefine the way we interact with our devices. With its focus on performance, security, and customization, Nitrux Linux presents a compelling case for those seeking to break free from the constraints of proprietary software and embrace the freedom and flexibility of open-source computing.
Removing Uninteresting Bytes in Software FuzzingAftab Hussain
Imagine a world where software fuzzing, the process of mutating bytes in test seeds to uncover hidden and erroneous program behaviors, becomes faster and more effective. A lot depends on the initial seeds, which can significantly dictate the trajectory of a fuzzing campaign, particularly in terms of how long it takes to uncover interesting behaviour in your code. We introduce DIAR, a technique designed to speedup fuzzing campaigns by pinpointing and eliminating those uninteresting bytes in the seeds. Picture this: instead of wasting valuable resources on meaningless mutations in large, bloated seeds, DIAR removes the unnecessary bytes, streamlining the entire process.
In this work, we equipped AFL, a popular fuzzer, with DIAR and examined two critical Linux libraries -- Libxml's xmllint, a tool for parsing xml documents, and Binutil's readelf, an essential debugging and security analysis command-line tool used to display detailed information about ELF (Executable and Linkable Format). Our preliminary results show that AFL+DIAR does not only discover new paths more quickly but also achieves higher coverage overall. This work thus showcases how starting with lean and optimized seeds can lead to faster, more comprehensive fuzzing campaigns -- and DIAR helps you find such seeds.
- These are slides of the talk given at IEEE International Conference on Software Testing Verification and Validation Workshop, ICSTW 2022.
Alt. GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using ...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
20 Comprehensive Checklist of Designing and Developing a WebsitePixlogix Infotech
Dive into the world of Website Designing and Developing with Pixlogix! Looking to create a stunning online presence? Look no further! Our comprehensive checklist covers everything you need to know to craft a website that stands out. From user-friendly design to seamless functionality, we've got you covered. Don't miss out on this invaluable resource! Check out our checklist now at Pixlogix and start your journey towards a captivating online presence today.
Full-RAG: A modern architecture for hyper-personalizationZilliz
Mike Del Balso, CEO & Co-Founder at Tecton, presents "Full RAG," a novel approach to AI recommendation systems, aiming to push beyond the limitations of traditional models through a deep integration of contextual insights and real-time data, leveraging the Retrieval-Augmented Generation architecture. This talk will outline Full RAG's potential to significantly enhance personalization, address engineering challenges such as data management and model training, and introduce data enrichment with reranking as a key solution. Attendees will gain crucial insights into the importance of hyperpersonalization in AI, the capabilities of Full RAG for advanced personalization, and strategies for managing complex data integrations for deploying cutting-edge AI solutions.
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
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.
Generative AI Deep Dive: Advancing from Proof of Concept to ProductionAggregage
Join Maher Hanafi, VP of Engineering at Betterworks, in this new session where he'll share a practical framework to transform Gen AI prototypes into impactful products! He'll delve into the complexities of data collection and management, model selection and optimization, and ensuring security, scalability, and responsible use.
How to Get CNIC Information System with Paksim Ga.pptxdanishmna97
Pakdata Cf is a groundbreaking system designed to streamline and facilitate access to CNIC information. This innovative platform leverages advanced technology to provide users with efficient and secure access to their CNIC details.
Sudheer Mechineni, Head of Application Frameworks, Standard Chartered Bank
Discover how Standard Chartered Bank harnessed the power of Neo4j to transform complex data access challenges into a dynamic, scalable graph database solution. This keynote will cover their journey from initial adoption to deploying a fully automated, enterprise-grade causal cluster, highlighting key strategies for modelling organisational changes and ensuring robust disaster recovery. Learn how these innovations have not only enhanced Standard Chartered Bank’s data infrastructure but also positioned them as pioneers in the banking sector’s adoption of graph technology.
1. Computer - Operating System
Advertisements
Previous Page
Next Page
It is a program with following features:
An operating system is a program that acts as an interface between the software and the
computer hardware.
It is an integrated set of specialised programs that are used to manage overall resources
and operations of the computer.
It is specialised software that controls and monitors the execution of all other programs
that reside in the computer, including application programs and other system software.
Objectives of Operating System
To make a computer system convenient to use in an efficient manner
To hide the details of the hardware resources from the users
To provide users a convenient interface to use the computer system
To act as an intermediary between the hardware and its users and making it easier for the
users to access and use other resources
To manage the resources of a computer system
To keep track of who is using which resource, granting resource requests, according for
resource using and mediating conflicting requests from different programs and users
To provide efficient and fair sharing of resources among users and programs
2. Characteristics of Operating System
Memory Management -- keeps tracks of primary memory i.e. what part of it is in use by
whom, what part is not in use etc. and allocates the memory when a process or program
requests it.
Processor Management -- allocates the processor(CPU) to a process and deallocates
processor when it is no longer required.
Device Management -- keeps track of all devices. This is also called I/O controller that
decides which process gets the device, when, and for how much time.
File Management -- allocates and de-allocates the resources and decides who gets the
resources.
Security -- prevents unauthorized access to programs and data by means of passwords
and similar other techniques.
Job accounting -- keeps track of time and resources used by various jobs and/or users.
Control over systemperformance -- records delays between request for a service and
from the system.
Interaction with the operators -- The interaction may take place via the console of the
computer in the form of instructions. Operating System acknowledges the same, does the
corresponding action and informs the operation by a display screen.
Error-detecting aids -- Production of dumps, traces, error messages and other
debugging and error-detecting methods.
Coordination between other software and users -- Coordination and assignment of
compilers, interpreters, assemblers and other software to the various users of the
computer systems.
3. Types of Operating System
Operating systems are there from the very first computer generation. Operating systems keep
evolving over the period of time. Following are few of the important types of operating system
which are most commonly used.
Batch operating system
The users of batch operating system do not interact with the computer directly. Each user
prepares his job on an off-line device like punch cards and submits it to the computer operator.
To speed up processing, jobs with similar needs are batched together and run as a group. Thus,
the programmers left their programs with the operator. The operator then sorts programs into
batches with similar requirements.
The problems with Batch Systems are following.
Lack of interaction between the user and job.
CPU is often idle, because the speeds of the mechanical I/O devices is slower than CPU.
Difficult to provide the desired priority.
Time-sharing operating systems
Time sharing is a technique which enables many people, located at various terminals, to use a
particular computer system at the same time. Time-sharing or multitasking is a logical extension
of multiprogramming. Processor's time which is shared among multiple users simultaneously is
termed as time-sharing. The main difference between Multiprogrammed Batch Systems and
Time-Sharing Systems is that in case of Multiprogrammed batch systems, objective is to
maximize processor use, whereas in Time-Sharing Systems objective is to minimize response
time.
Multiple jobs are executed by the CPU by switching between them, but the switches occur so
frequently. Thus, the user can receives an immediate response. For example, in a transaction
processing, processor execute each user program in a short burst or quantum of computation.
That is if n users are present, each user can get time quantum. When the user submits the
command, the response time is in few seconds at most.
Operating system uses CPU scheduling and multiprogramming to provide each user with a small
portion of a time. Computer systems that were designed primarily as batch systems have been
modified to time-sharing systems.
Advantages of Timesharing operating systems are following
Provide advantage of quick response.
Avoids duplication of software.
4. Reduces CPU idle time.
Disadvantages of Timesharing operating systems are following.
Problem of reliability.
Question of security and integrity of user programs and data.
Problem of data communication.
Distributed operating
System(Multiprogramming/Multitasking)
Distributed systems use multiple central processors to serve multiple real time application and
multiple users. Data processing jobs are distributed among the processors accordingly to which
one can perform each job most efficiently.
The processors communicate with one another through various communication lines (such as
high-speed buses or telephone lines). These are referred as loosely coupled systems or distributed
systems. Processors in a distributed system may vary in size and function. These processors are
referred as sites, nodes, computers and so on.
The advantages of distributed systems are following.
With resource sharing facility user at one site may be able to use the resources available
at another.
Speedup the exchange of data with one another via electronic mail.
If one site fails in a distributed system, the remaining sites can potentially continue
operating.
Better service to the customers.
Reduction of the load on the host computer.
Reduction of delays in data processing.
Network operating System
Network Operating System runs on a server and and provides server the capability to manage
data, users, groups, security, applications, and other networking functions. The primary purpose
of the network operating system is to allow shared file and printer access among multiple
computers in a network, typically a local area network (LAN), a private network or to other
networks. Examples of network operating systems are Microsoft Windows Server 2003,
Microsoft Windows Server 2008, UNIX, Linux, Mac OS X, Novell NetWare, and BSD.
The advantages of network operating systems are following.
Centralized servers are highly stable.
Security is server managed.
Upgrades to new technologies and hardwares can be easily integrated into the system.
5. Remote access to servers is possible from different locations and types of systems.
The disadvantages of network operating systems are following.
High cost of buying and running a server.
Dependency on a central location for most operations.
Regular maintenance and updates are required.
Real Time operating System
Real time system is defines as a data processing system in which the time interval required to
process and respond to inputs is so small that it controls the environment. Real time processing is
always on line whereas on line system need not be real time. The time taken by the system to
respond to an input and display of required updated information is termed as response time. So in
this method response time is very less as compared to the online processing.
Real-time systems are used when there are rigid time requirements on the operation of a
processor or the flow of data and real-time systems can be used as a control device in a dedicated
application. Real-time operating system has well-defined, fixed time constraints otherwise
system will fail.For example Scientific experiments, medical imaging systems, industrial control
systems, weapon systems, robots, and home-applicance controllers, Air traffic control system
etc.
There are two types of real-time operating systems.
Hardreal-timesystems
Hard real-time systems guarantee that critical tasks complete on time. In hard real-time systems
secondary storage is limited or missing with data stored in ROM. In these systems virtual
memory is almost never found.
Softreal-timesystems
Soft real time systems are less restrictive. Critical real-time task gets priority over other tasks and
retains the priority until it completes. Soft real-time systems have limited utility than hard real-
time systems. For example, Multimedia, virtual reality, Advanced Scientific Projects like
undersea exploration and planetary rovers etc.
Five Common Operating Systems
The operating system serves as the intermediary between the user and the software on all
computing devices.
6. The operating system is the computer's most important piece of software. It manages the
hardware resources, determines which programs are compatible with the system and executes
those programs when the user decides to run them. Its influence on the nuts and bolts of
computer operation makes it a major determining factor when it comes to the user's experience.
A given operating system has not only its own functionality, but a unique look and feel that
creates a specific environment. Each of the world's major operating systems has its own
passionate following, prompting endless debate on which is superior, and for what. Learning
about them in the face of this shifting competitive landscape requires understanding certain
basics principles.
Ubuntu
Ubuntu is based on a version of the Linux operating system known as Debian GNU/Linux. Its
main benefit is that it's free and open source. This means users can alter the code as they see fit.
Ubuntu also stands out because it's updated once every six months, unlike other open source
programs that have no strict upgrade schedule. Most Ubuntu-compatible software is also free and
available in on-line software "repositories." Users can try Ubuntu on their PC using the
program's "Live CD" mode. This allows you to run the system without actually installing it on
your computer. Because Ubuntu programs are less ubiquitous than those for more well-known
systems, users may need to do some research before finding the software solutions they need.
Android
Android is a "mobile" operating system maintained by the Open Handset Alliance, a group of
companies and organizations that contribute to the system's development under the management
of Google Inc. The system is an "open standard," meaning that an entire community of
developers can alter the software, not just Google. Android comes pre-installed on smartphones
and tablet PCs for which it was designed. As of the date of publication, all four major
smartphone carriers -- Verizon, T-Mobile, Sprint and AT&T -- have Android devices available.
A variety of manufacturers also make Android-compatible devices. One of the main benefits of
the system's open source status is that developers can create different versions of its basic
programs, allowing users greater freedom to customize their mobile devices.
RelatedReading: Common Problems in Management Information Systems
Mac OS X
While a version of Mac OS X comes pre-installed on all Apple Macintosh computers, users must
pay if they wish to use newer versions when they become available. The system is not open
source, so only Apple developers have the ability to legitimately make alterations or
improvements to its code. It differs from other computer operating systems in that it only works
on Apple computers. Its key feature is its usability. The most recent version as of the date of
publication includes a "resume" feature that re-opens applications in the same state they were in
7. when you last closed them. It also includes a "Mission Control" feature, which allows you to see
all of your open files at a glance.
IOS
IOS is Apple's mobile operating system. It runs on the company's iPod, iPhone and iPad devices.
Like Mac OS X, it can only be used on Apple's mobile devices. One advantage of iOS is that
more applications are available for it than for any other mobile operating system. As of summer
2011, it has approximately 400,000 to Android's 300,000. This increases the chances that users
will find the type of app they're looking for. The system's key features include multitasking
support, which allows users to run multiple apps simultaneously, and FaceTime, a video chat
program that comes pre-installed on iOS devices.
Windows
Windows is an operating system owned and operated by Microsoft. It differs from open source
systems in that only Microsoft has the ability to make changes to the code. However, it also
differs from Mac OS X in that it can be installed on a variety of different computers from a host
of competing manufacturers, offering the user more freedom of choice when it comes to
hardware. According to Net Market Share, Windows is the most widely used operating system.
The latest version as of the date of publication includes touchscreen support, which combines the
usability of a touchscreen tablet with the power of a desktop computer. It also features "Play To"
and "Remote Media Streaming," which allow you to play media from your computer on other
devices in its vicinity and to access your media when you're away from your computer.