Introduction to operating systems
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The document discusses operating systems, including their purpose and types. The main purposes of an operating system are to manage memory, files, processor time, input/output, interrupts, errors, and the human/computer interface. The types of operating systems discussed are batch, real-time, single-user, multi-user, multi-tasking, and distributed systems. The document provides learning outcomes and success criteria for understanding operating systems.
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Operating Systems
The document discusses operating systems and their functions. An operating system controls the entire operations of a computer by providing an environment for users to execute programs and acting as an interface between the user and hardware. It has two main objectives - managing hardware and providing an interface. The document then describes different types of operating systems including batch processing, multi-user, single-user, multi-tasking, real-time, multi-processing, and multi-threading operating systems. It concludes by listing some of the main functions of an operating system such as process management, memory management, file management, device management, security management, and providing a user interface.
Lesson 4 Types Of Operating Systems
There are four main types of operating systems:
1. Real-time operating systems control machinery and industrial systems, ensuring precise timing for operations.
2. Single-user, single-task operating systems like Palm OS manage one user doing one thing at a time.
3. Single-user, multitasking systems like Windows and Mac OS allow a single user to run multiple programs simultaneously.
4. Multi-user operating systems such as Unix, VMS, and MVS enable concurrent access by multiple users.
Types of o.s
The document discusses different types of operating systems, including time sharing systems. It describes time sharing systems as allowing multiple users to access a computer simultaneously through time slicing techniques. Each user's process is given a short time slice to run on the CPU before being interrupted so that another process can run, allowing for fast switching between users and higher CPU utilization. The presentation discusses time sharing systems in the context of other operating system types like batch systems, single-user systems, and multi-user systems.
Operating system by ajay yadav shq upr
This document provides an overview of operating systems including their definition, tasks, types, and popular examples. It defines an operating system as an interface between the user and computer hardware that manages files, memory, processes, input/output, and devices. The main tasks of an operating system are described as processor management, memory management, storage management, device management, user interface, security, and performance control. Several types of operating systems are outlined including simple batch systems, multiprocessing batch systems, multiprocessing systems, distributed systems, and real-time systems. Popular examples like Android, Windows, Linux, DOS, iOS, and Blackberry are listed.
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This document provides an introduction to operating systems, including definitions, functions, types, and examples. It defines an operating system as software that manages computer hardware and acts as an interface between the user and computer. Operating systems perform functions like program creation, execution, input/output, error detection, and resource allocation. They can be classified as single-user or multi-user systems. Examples of operating systems discussed include Windows, Linux, Unix, and Mac OS. Key details about Linux and its latest versions are also provided.
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The document discusses the main types of operating systems: serial processing, batch processing, time-sharing, real-time, and multi-user/multi-tasking network operating systems. Serial processing operating systems execute instructions sequentially without user interaction. Batch processing groups similar jobs into batches to be processed when the computer is idle. Time-sharing operating systems allow multiple users or programs to share resources by rapidly switching between tasks. Real-time operating systems are used for systems like robots where response time is critical. Network operating systems manage shared resources, users, security, and applications over a private network.
Types of operating system
The document discusses 5 types of operating systems: simple batch systems, multi-programming systems, real-time systems, multi-processor systems, and distributed systems. Simple batch systems execute jobs in batches when the computer is idle. Multi-programming systems allow for more than one program to reside in memory at a time, improving CPU utilization. Real-time systems ensure processes are completed within a certain time frame and are used in applications like air traffic control. Multi-processor systems use multiple CPUs to improve performance. Distributed systems leverage networked computers to increase computing power and availability.
Os
The document provides an overview of operating systems with the following key points:
1) An operating system acts as an interface between users and hardware, allowing for convenient and efficient usage of resources while providing information protection and parallel processing.
2) Operating systems include components for job scheduling, simultaneous CPU execution and I/O handling, and offline processing to avoid wasted CPU cycles.
3) Other characteristics of operating systems include time sharing, multiprocessing, distributed systems, and supporting real-time applications with rapid response times.
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The document discusses operating systems and their functions. An operating system controls the entire operations of a computer by providing an environment for users to execute programs and acting as an interface between the user and hardware. It has two main objectives - managing hardware and providing an interface. The document then describes different types of operating systems including batch processing, multi-user, single-user, multi-tasking, real-time, multi-processing, and multi-threading operating systems. It concludes by listing some of the main functions of an operating system such as process management, memory management, file management, device management, security management, and providing a user interface.
Lesson 4 Types Of Operating Systems
There are four main types of operating systems:
1. Real-time operating systems control machinery and industrial systems, ensuring precise timing for operations.
2. Single-user, single-task operating systems like Palm OS manage one user doing one thing at a time.
3. Single-user, multitasking systems like Windows and Mac OS allow a single user to run multiple programs simultaneously.
4. Multi-user operating systems such as Unix, VMS, and MVS enable concurrent access by multiple users.
Types of o.s
The document discusses different types of operating systems, including time sharing systems. It describes time sharing systems as allowing multiple users to access a computer simultaneously through time slicing techniques. Each user's process is given a short time slice to run on the CPU before being interrupted so that another process can run, allowing for fast switching between users and higher CPU utilization. The presentation discusses time sharing systems in the context of other operating system types like batch systems, single-user systems, and multi-user systems.
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This document provides an overview of operating systems including their definition, tasks, types, and popular examples. It defines an operating system as an interface between the user and computer hardware that manages files, memory, processes, input/output, and devices. The main tasks of an operating system are described as processor management, memory management, storage management, device management, user interface, security, and performance control. Several types of operating systems are outlined including simple batch systems, multiprocessing batch systems, multiprocessing systems, distributed systems, and real-time systems. Popular examples like Android, Windows, Linux, DOS, iOS, and Blackberry are listed.
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This document provides an introduction to operating systems, including definitions, functions, types, and examples. It defines an operating system as software that manages computer hardware and acts as an interface between the user and computer. Operating systems perform functions like program creation, execution, input/output, error detection, and resource allocation. They can be classified as single-user or multi-user systems. Examples of operating systems discussed include Windows, Linux, Unix, and Mac OS. Key details about Linux and its latest versions are also provided.
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The document discusses the main types of operating systems: serial processing, batch processing, time-sharing, real-time, and multi-user/multi-tasking network operating systems. Serial processing operating systems execute instructions sequentially without user interaction. Batch processing groups similar jobs into batches to be processed when the computer is idle. Time-sharing operating systems allow multiple users or programs to share resources by rapidly switching between tasks. Real-time operating systems are used for systems like robots where response time is critical. Network operating systems manage shared resources, users, security, and applications over a private network.
Types of operating system
The document discusses 5 types of operating systems: simple batch systems, multi-programming systems, real-time systems, multi-processor systems, and distributed systems. Simple batch systems execute jobs in batches when the computer is idle. Multi-programming systems allow for more than one program to reside in memory at a time, improving CPU utilization. Real-time systems ensure processes are completed within a certain time frame and are used in applications like air traffic control. Multi-processor systems use multiple CPUs to improve performance. Distributed systems leverage networked computers to increase computing power and availability.
Os
The document provides an overview of operating systems with the following key points:
1) An operating system acts as an interface between users and hardware, allowing for convenient and efficient usage of resources while providing information protection and parallel processing.
2) Operating systems include components for job scheduling, simultaneous CPU execution and I/O handling, and offline processing to avoid wasted CPU cycles.
3) Other characteristics of operating systems include time sharing, multiprocessing, distributed systems, and supporting real-time applications with rapid response times.
Types of os
The document discusses different types of operating systems including mainframe systems, desktop systems, multiprocessor systems, distributed systems, clustered systems, real-time systems, and handheld systems. It provides details on the characteristics of each type such as batch processing for mainframe systems, parallel processing for multiprocessor systems, resource sharing for distributed systems, and fixed time constraints for real-time systems. The document also covers operating system concepts such as resource allocation, control programs, and kernels.
ITT project ON types of operating system
This document discusses different types of operating systems categorized by their process management. It describes single-user OSs that can handle one user or one application at a time, as well as multi-user OSs that allow multiple simultaneous users. It also covers multitasking OSs that can run multiple applications concurrently by rapidly switching between them, multiprocessing OSs using multiple CPUs, and multithreading OSs where different parts of a program run concurrently. Other types discussed include real-time, embedded, batch processing, and distributed OSs. The document concludes with an overview of process management in operating systems.
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The document defines and describes operating systems. It states that an operating system is an interface between the user and computer that enables programs to run. It performs basic tasks like controlling memory, input/output devices, file management, and prioritizing requests. An operating system has four main layers - hardware, operating system software, system programs, and application programs. It also classifies operating systems as single-user or multi-user and describes their main differences. Key functions of operating systems include program creation/execution, input/output operations, error detection, resource allocation, accounting, and protection.
Computer Operating system
An operating system coordinates activities between computer hardware, provides means for users to communicate with the computer and software, and manages computer resources. There are multi-user operating systems that allow multiple users to access a computer at once and single-user systems that allow one user but multiple programs. Operating systems features include time sharing to allocate portions of time to jobs, multiprocessing to run programs simultaneously, distributed systems to share jobs across networked computers, and real-time systems to perform tasks within time constraints. Common operating systems include Windows, Mac OS, and the goals of operating systems are efficient hardware use and easy resource access.
Operating system
The document discusses operating systems. It defines an operating system as system software that manages computer hardware and resources and provides common services for programs. It then discusses operating system functions like booting the computer, managing devices and resources, providing file management and error handling. It also discusses different types of operating systems like batch systems, time sharing systems, multiprocessor systems, distributed systems, and real-time systems.
Operating system structure
An operating system allows user programs to interact with hardware by using techniques like multiprogramming and multitasking. Multiprogramming allows more than one user to use a computer at a time by having multiple ready-to-run processes from different users. If the current process stalls, the OS allocates CPU time to another process in the queue to maximize CPU utilization. Multitasking means concurrent execution of multiple processes by one user using multiple CPUs, so a user can work on a document and listen to music at the same time. Job scheduling and CPU scheduling determine which processes get allocated CPU time to make the system efficient, fast and fair.
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This document discusses computer operating systems. It defines an operating system as a collection of software that manages computer hardware resources and provides common services for computer programs. It notes that operating systems are necessary because without them, every program would need full hardware specifications and drivers to run correctly. The document then outlines the history of major operating systems from the 1950s to present day, including UNIX, Mac OS, Windows, Linux, Android and iOS. It also discusses the components of an operating system and how they have evolved from early command line interfaces to modern graphical user interfaces.
IB Computer Science Section 6.3 Operating Systems
An operating system handles input/output control, file maintenance, the software/hardware interface, memory allocation, constructs the user interface, controls software execution, and organises security and virtual memory. Operating systems can be single user, multi-user, or multi-processing. Multi-tasking allows one client to run multiple programs at once while multi-threading runs different parts of a single program simultaneously. Utility software performs specific hidden tasks like backups or antivirus protection, unlike applications which users choose for their needs.
Computer system
A computer system consists of hardware, software, and data. It is a collection of related components designed to work together. Hardware refers to the physical parts of the computer like the computer itself and peripherals. Software includes the programs that run the computer like operating systems and applications. Data are unprocessed facts, while information is processed data. Common components of a computer system include input devices, processors, and output devices. Popular software categories are system software that controls the computer and application software for specific tasks. Common platforms are Windows operating systems paired with Intel processors.
Different types of operating systems
This document provides an overview of different types of operating systems, including Windows OS, Mac OS, Linux, DOS, and Unix. It discusses the history and key features of each operating system, as well as their advantages and disadvantages. The document focuses on explaining the user interface, applications, and versions of different operating systems like Windows, highlighting Windows XP, Vista, and 10. It also summarizes the origins and uses of Linux, Mac OS, DOS, and Unix operating systems.
Computer operating system
The document discusses various computer operating systems including their definitions, types, examples, and brief histories. It covers operating systems such as DOS, Windows NT, Windows 9x, Windows XP, Mac OS, and others, providing basic information about each one such as what they are, when they were developed, and their key features and purposes.
Inter process commination
This document discusses inter-process communication (IPC), which allows processes to exchange data and synchronize actions. IPC involves two parts: unicast from one process to another, and multicast from one process to a group. There are two types of IPC - independent processes that are not affected by others, and cooperating processes that can impact one another. IPC enables information sharing, resource sharing, modularity, and helps operating systems communicate via shared memory or message passing.
System call
This document discusses system calls in operating systems. It defines a system call as the way a program requests a service from the operating system kernel. System calls provide an interface between user programs and the OS and allow processes to access resources. The document describes how system calls work by interrupting a process, executing in kernel mode, then returning control to user mode. It also lists reasons why system calls are needed in operating systems, such as for file I/O, process creation, networking, and hardware device access. Finally, it outlines some common types of system calls like process control, file management, and communications.
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Proprietary software is licensed under exclusive legal rights that restrict uses such as modification and redistribution. In contrast, open-source software is available in source code form and permits users to study, change, and distribute the software under an open-source license. Examples of open-source operating systems include Ubuntu and EduBOSS, an adaptation of BOSS GNU/Linux with educational applications for students.
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Computer system
A computer system is a collection of related hardware and software components designed to work together. It includes input devices to enter data, processing components like the microprocessor to transform data into information, and output devices to display processed information. System software like the operating system controls and manages computer resources, while application software performs specific tasks. Common applications include word processors for text editing and electronic spreadsheets for financial modeling.
Operating systems
The operating system is essential software that enables computer programs and hardware to work together. It performs basic tasks like managing memory, input/output devices, and file systems. Common examples are Windows, Linux, and Mac OS. Operating systems can be classified as single-user for standalone systems or multi-user for regulated access by multiple simultaneous users, like Unix systems.
Intro to os
This document is an introduction to operating systems presented by Arzoo Sorout. It defines an operating system as software that manages computer hardware and resources and provides common services for programs. It outlines the objectives, functions, structure, evolution and types of operating systems. Key points covered include how operating systems enable programs to work, act as an interface between hardware and software, and perform tasks like memory management and I/O control. Batch processing, multiprogramming, timesharing and examples of single-user and multi-user operating systems are also summarized.
Os concepts 5 Storage and IO Virtualization
This document discusses storage and I/O virtualization, including characteristics of different storage types and how data moves through storage hierarchies. It describes the I/O subsystem's role in hiding hardware details from users through buffering, caching, and spooling. Protection and security mechanisms like access control lists and privilege escalation are examined. Virtualization allows multiple operating systems to run on a single machine through emulation, virtualization, or a virtual machine manager. Distributed systems connect separate systems over a network, with a network OS facilitating communication to create the illusion of a single system.
Operating System
An operating system manages computer resources and acts as an interface between the user and hardware. It performs basic tasks like managing files, processes, memory and devices. There are different types of operating systems including batch, time-sharing, distributed, network, and real-time operating systems. Batch operating systems group similar jobs into batches while time-sharing systems allocate CPU time to tasks. Distributed systems communicate over a network and network operating systems manage resources and users over a private network. Real-time operating systems are used for applications with strict time constraints like medical or military systems.
Operating systems
This document provides an overview of operating systems, including what they are, what they do, their structure and evolution. It discusses how operating systems have evolved from batch processing systems to today's multi-user, multitasking systems. Key points covered include:
- An operating system acts as an interface between application programs and computer hardware, performing tasks like memory management and I/O control.
- OS structure includes application programs, system programs, the OS software, and hardware layers.
- Early systems evolved from batch processing to support multiprogramming, timesharing, and later personal computing and distributed systems.
- Modern OS types include single-user and multi-user systems to support multiple simultaneous users.
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The document discusses different types of operating systems including mainframe systems, desktop systems, multiprocessor systems, distributed systems, clustered systems, real-time systems, and handheld systems. It provides details on the characteristics of each type such as batch processing for mainframe systems, parallel processing for multiprocessor systems, resource sharing for distributed systems, and fixed time constraints for real-time systems. The document also covers operating system concepts such as resource allocation, control programs, and kernels.
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This document discusses different types of operating systems categorized by their process management. It describes single-user OSs that can handle one user or one application at a time, as well as multi-user OSs that allow multiple simultaneous users. It also covers multitasking OSs that can run multiple applications concurrently by rapidly switching between them, multiprocessing OSs using multiple CPUs, and multithreading OSs where different parts of a program run concurrently. Other types discussed include real-time, embedded, batch processing, and distributed OSs. The document concludes with an overview of process management in operating systems.
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The document defines and describes operating systems. It states that an operating system is an interface between the user and computer that enables programs to run. It performs basic tasks like controlling memory, input/output devices, file management, and prioritizing requests. An operating system has four main layers - hardware, operating system software, system programs, and application programs. It also classifies operating systems as single-user or multi-user and describes their main differences. Key functions of operating systems include program creation/execution, input/output operations, error detection, resource allocation, accounting, and protection.
Computer Operating system
An operating system coordinates activities between computer hardware, provides means for users to communicate with the computer and software, and manages computer resources. There are multi-user operating systems that allow multiple users to access a computer at once and single-user systems that allow one user but multiple programs. Operating systems features include time sharing to allocate portions of time to jobs, multiprocessing to run programs simultaneously, distributed systems to share jobs across networked computers, and real-time systems to perform tasks within time constraints. Common operating systems include Windows, Mac OS, and the goals of operating systems are efficient hardware use and easy resource access.
Operating system
The document discusses operating systems. It defines an operating system as system software that manages computer hardware and resources and provides common services for programs. It then discusses operating system functions like booting the computer, managing devices and resources, providing file management and error handling. It also discusses different types of operating systems like batch systems, time sharing systems, multiprocessor systems, distributed systems, and real-time systems.
Operating system structure
An operating system allows user programs to interact with hardware by using techniques like multiprogramming and multitasking. Multiprogramming allows more than one user to use a computer at a time by having multiple ready-to-run processes from different users. If the current process stalls, the OS allocates CPU time to another process in the queue to maximize CPU utilization. Multitasking means concurrent execution of multiple processes by one user using multiple CPUs, so a user can work on a document and listen to music at the same time. Job scheduling and CPU scheduling determine which processes get allocated CPU time to make the system efficient, fast and fair.
Operating systems Basics
This document discusses computer operating systems. It defines an operating system as a collection of software that manages computer hardware resources and provides common services for computer programs. It notes that operating systems are necessary because without them, every program would need full hardware specifications and drivers to run correctly. The document then outlines the history of major operating systems from the 1950s to present day, including UNIX, Mac OS, Windows, Linux, Android and iOS. It also discusses the components of an operating system and how they have evolved from early command line interfaces to modern graphical user interfaces.
IB Computer Science Section 6.3 Operating Systems
An operating system handles input/output control, file maintenance, the software/hardware interface, memory allocation, constructs the user interface, controls software execution, and organises security and virtual memory. Operating systems can be single user, multi-user, or multi-processing. Multi-tasking allows one client to run multiple programs at once while multi-threading runs different parts of a single program simultaneously. Utility software performs specific hidden tasks like backups or antivirus protection, unlike applications which users choose for their needs.
Computer system
A computer system consists of hardware, software, and data. It is a collection of related components designed to work together. Hardware refers to the physical parts of the computer like the computer itself and peripherals. Software includes the programs that run the computer like operating systems and applications. Data are unprocessed facts, while information is processed data. Common components of a computer system include input devices, processors, and output devices. Popular software categories are system software that controls the computer and application software for specific tasks. Common platforms are Windows operating systems paired with Intel processors.
Different types of operating systems
This document provides an overview of different types of operating systems, including Windows OS, Mac OS, Linux, DOS, and Unix. It discusses the history and key features of each operating system, as well as their advantages and disadvantages. The document focuses on explaining the user interface, applications, and versions of different operating systems like Windows, highlighting Windows XP, Vista, and 10. It also summarizes the origins and uses of Linux, Mac OS, DOS, and Unix operating systems.
Computer operating system
The document discusses various computer operating systems including their definitions, types, examples, and brief histories. It covers operating systems such as DOS, Windows NT, Windows 9x, Windows XP, Mac OS, and others, providing basic information about each one such as what they are, when they were developed, and their key features and purposes.
Inter process commination
This document discusses inter-process communication (IPC), which allows processes to exchange data and synchronize actions. IPC involves two parts: unicast from one process to another, and multicast from one process to a group. There are two types of IPC - independent processes that are not affected by others, and cooperating processes that can impact one another. IPC enables information sharing, resource sharing, modularity, and helps operating systems communicate via shared memory or message passing.
System call
This document discusses system calls in operating systems. It defines a system call as the way a program requests a service from the operating system kernel. System calls provide an interface between user programs and the OS and allow processes to access resources. The document describes how system calls work by interrupting a process, executing in kernel mode, then returning control to user mode. It also lists reasons why system calls are needed in operating systems, such as for file I/O, process creation, networking, and hardware device access. Finally, it outlines some common types of system calls like process control, file management, and communications.
Os1
Proprietary software is licensed under exclusive legal rights that restrict uses such as modification and redistribution. In contrast, open-source software is available in source code form and permits users to study, change, and distribute the software under an open-source license. Examples of open-source operating systems include Ubuntu and EduBOSS, an adaptation of BOSS GNU/Linux with educational applications for students.
Operating system basics
The document provides an overview of operating system basics, including what an operating system is, examples of common operating systems, their key characteristics and capabilities. It discusses how operating systems work, manage hardware/software resources, and provide services to computer programs. Specific operating systems covered include Windows, Mac OS X, Linux, and mobile operating systems like iOS and Android. [/SUMMARY]
Computer system
A computer system is a collection of related hardware and software components designed to work together. It includes input devices to enter data, processing components like the microprocessor to transform data into information, and output devices to display processed information. System software like the operating system controls and manages computer resources, while application software performs specific tasks. Common applications include word processors for text editing and electronic spreadsheets for financial modeling.
Operating systems
The operating system is essential software that enables computer programs and hardware to work together. It performs basic tasks like managing memory, input/output devices, and file systems. Common examples are Windows, Linux, and Mac OS. Operating systems can be classified as single-user for standalone systems or multi-user for regulated access by multiple simultaneous users, like Unix systems.
Intro to os
This document is an introduction to operating systems presented by Arzoo Sorout. It defines an operating system as software that manages computer hardware and resources and provides common services for programs. It outlines the objectives, functions, structure, evolution and types of operating systems. Key points covered include how operating systems enable programs to work, act as an interface between hardware and software, and perform tasks like memory management and I/O control. Batch processing, multiprogramming, timesharing and examples of single-user and multi-user operating systems are also summarized.
Os concepts 5 Storage and IO Virtualization
This document discusses storage and I/O virtualization, including characteristics of different storage types and how data moves through storage hierarchies. It describes the I/O subsystem's role in hiding hardware details from users through buffering, caching, and spooling. Protection and security mechanisms like access control lists and privilege escalation are examined. Virtualization allows multiple operating systems to run on a single machine through emulation, virtualization, or a virtual machine manager. Distributed systems connect separate systems over a network, with a network OS facilitating communication to create the illusion of a single system.
Operating System
An operating system manages computer resources and acts as an interface between the user and hardware. It performs basic tasks like managing files, processes, memory and devices. There are different types of operating systems including batch, time-sharing, distributed, network, and real-time operating systems. Batch operating systems group similar jobs into batches while time-sharing systems allocate CPU time to tasks. Distributed systems communicate over a network and network operating systems manage resources and users over a private network. Real-time operating systems are used for applications with strict time constraints like medical or military systems.
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This document provides an overview of operating systems, including what they are, what they do, their structure and evolution. It discusses how operating systems have evolved from batch processing systems to today's multi-user, multitasking systems. Key points covered include:
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- Early systems evolved from batch processing to support multiprogramming, timesharing, and later personal computing and distributed systems.
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This document provides an overview of operating systems including definitions, functions, types, popular operating systems, and top five operating systems. It defines an operating system as an interface between the user and computer hardware that controls execution of programs. It describes functions such as memory management, processor management, and file management. It discusses types including batch, multiprogramming, time-sharing, distributed, real-time, and network operating systems. The top five computer operating systems are identified as Windows, Mac OS, Chrome OS, Android, and the top five smartphone operating systems as Android, iOS, Windows Mobile, Blackberry OS, and Firefox OS.
Introduction to Operating System
The operating system is software that enables all programs to run by organizing and controlling the hardware resources and providing interfaces. It manages processes, memory, storage devices, and input/output. Operating systems have evolved from simple batch processing systems to today's multiprogramming, time-sharing, and distributed systems that allow many processes to run concurrently while sharing resources. The operating system acts as an interface between programs, hardware, and users.
Introduction of os and types
The document provides an overview of operating systems, including what they are, their main objectives and advantages. It discusses the history and evolution of OS, from early systems in the 1950s used for tape storage, to modern operating systems with graphical user interfaces. It also covers different types of OS like batch processing systems, time-sharing systems, personal computer systems, parallel and real-time systems. Key aspects of OS like kernels, memory management and different system architectures are summarized as well.
Introduction to Operating System
It includes:
Introduction to Operating System
>> Operating System Functions
>> History and Goals of Operating System
>> Evolution of Operating System
Operating System
The document provides an overview of operating systems including:
- An introduction to operating systems and their key functions like enabling programs to run and acting as an intermediary between users and hardware.
- A brief history of operating systems from early batch systems in the 1950s to modern graphical user interface operating systems like Windows.
- Descriptions of different types of operating systems including batch, multi-programming, multi-tasking, network, distributed, and real-time operating systems.
- Discussions of popular operating systems like Windows, Mac OS, Android, iOS, and Linux.
- Features and limitations of operating systems.
Operating System Overview.pdf
The document provides an introduction to operating systems, including definitions, goals, and components. It discusses how operating systems manage computer hardware, execute user programs, and make systems convenient and efficient. It describes how operating systems act as an intermediary between users and hardware. It also summarizes the evolution of operating systems from early batch systems to modern time-sharing and networked systems. Key aspects covered include process management, memory management, multiprocessing, real-time systems, personal computers, and the role of the operating system in enabling interaction between programs and hardware.
Lecture 4.pptx
The document discusses operating systems, defining them as software that manages computer hardware resources and enables communication between hardware and software. It describes the main components and functions of operating systems, including managing processors, memory, devices, user interfaces, and more. The key components are the shell, which handles user interactions, and the kernel, which manages communication with hardware. Examples of different types of operating systems discussed are standalone systems like Windows, MacOS, and Linux, server systems, embedded systems, and mobile operating systems.
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Introduction to operating systems
- 1. Introduction to Operating Systems 3.1.2 q r s
- 2. Operating Systems • How many can you name?
- 3. Learning Outcomes • Describe the purpose of operating systems; • Describe the characteristics of different types of operating systems and their uses: batch, real-time, single-user, multi-user, multi-tasking and distributed systems; • Describe a range of applications requiring batch processing, and applications in which a rapid response is required;
- 4. Purpose of an OS The operating system (OS) for a standalone computer will be much simpler than that of a supercomputer which is controlling hundreds of networked terminals and executing many different kinds of job simultaneously. Nevertheless, all operating systems perform the same basic functions. These include: • Memory management; • File management (sometimes known as backing-store management); • Allocation of processor time; • Input and output management. An operating system also manages: • Interrupts; • Errors; • The human/computer interface.
- 5. Different Types of OS These are the different types of OS • batch • real-time • single-user • multi-user • multi-tasking • distributed systems You will need to find out a bit of information about these OS. But first, what is a batch operating system?
- 6. Success Criteria • What is the purpose of an operating system? – Mention at least 5 different function • Describe the different OS • Find an example of each type.