Operating systems

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  Answer: Following are the difference between Multiprogramming vs Multi-tasking :-

  1. Multiple programming -

  Within the current state of art, many of the application operations that you want to perform will not be possible. The system's job now is to manage all systems efficiently and effectively.

  The best part of the OS are the many programs.

  In computer systems, many systems wait for execution, that is, they wait for the CPU to allow it to restart. These processes are called processes. The current storage is too small to access these systems or services. In other words, these systems are stored in an area called a work pool. This service column contains all processes waiting for main memory and CPU release.

  From these functions, wait for the CPU to select a function, bring it from the task group to the memory head, and begin executing it. Processor runs until an external object stops it or switches to I / O work.

  The main goals of many of the programs are:

  1. Highest CPU usage.

  2. Effective safety function.

  Multi-set system operation -

  • In multi-use systems, when the work reaches I / O, the operating system interrupts the task, selects another task from the task group (waiting in line), gives the CPU this new job, then starts. While this new CPU-related function works, the previous function is still in the I / O function. Now say that the second function will go to the I / O function, the CPU selects the third function and then begins to perform it. When the I / O function ends and returns to CPU performance, the CPU allows it.
  • This way, the system wastes no CPU time waiting for the I / O function to complete.
  • Hence, CPU is active as long as there is a system to achieve the ultimate goal of most programs. In this way, multiple programs and one configuration can be executed by running multiple programs, one part of a program simultaneously, part of another program, and part of another program. Therefore, the CPU will not work.

  2. Multitasking

  As the name implies, multitasking refers to performing multiple tasks (i.e. processes, programs, threads, etc.). With that in modern operating systems, we can play MP3 music, edit files. document in Microsoft Word, and search Google Chrome immediately, which is done by extension.

  Anything is a logical extension of many programs. A very different way to differentiate multiple jobs is to put a lot of work into the idea of ​​changing the environment in which multiple jobs work at allotted hours as well as the idea of ​​changing the situation.

  There are two main types of systems:

  1. Too much for one user

  2. Do a lot with a lot of people

  Multi -function system -

  • In the time-allocation section, each system to perform the work is assigned a specific time frame. Suppose there are 4 systems P1, P2, P3, and P4 4 ready to kill. Therefore, each of them allocates a small amount of time to apply, for example, a 5 ns (5 ns) period. When the process begins to take effect (e.g. P2), it is performed over a long period of time (5 ns). After 5 nanoseconds, the CPU (e.g. P3) starts performing the next step at the specified time.
  • As a result, the CPU works to divide its time between them and process them accordingly. Once the numerical value for one step has passed, the other process begins.
  • Here, too, conversion changes are normal but done quickly so that the user can connect to each program separately as it runs. In this way, the user has the feeling that many tasks / activities are being done at one time. But in reality, only one task / task is performed at a time and place. With multitasking, the distribution time is better because each running system consumes CPU time.

  Answer: Following are the difference between Application program vs system programs

  Application Program:

  These programs do something for the users. Even in application applications including email, web browser, game software, reader, photo software, media player, etc.

  All of these programs provide applications to end users so they are known as application programs. For example: Your web browser is used to find information when running a game-playing program.

  The application and communication system for a specific program is known as an API (Application Programming Interface).

  • The application software helps in performing a specific series of custom magic.
  • The program is developed in advanced languages ​​such as Java, C ++, .net and VB.
  • The software application works at the request of the user.
  • The application program is user specific and is not necessary to operate the system as a whole.
  • Software applications have a specific purpose.

  System programming

  The operating system is used to configure the operating system. While the programming system provides the software for the user to use, the software provides the software that is used by the other systems, such as SaaS applications, computer science applications, etc.

  • Software systems designed to manage data. It is used as a platform for creating programs.
  • System software development in a low language (church language).
  • The system software starts to work as soon as the system is turned on and stops when the system is turned off.
  • The system cannot be started without a software system
  • System software is provided for this main purpose.

  Answer: Following are the difference between system programs vs kernel

  System Program

  It is a system program that provides an interface between the user and the computer. When the computer starts up, the system program is the first to load.

  1. System software is a system program.
  2. The operating system offers a black and white user interface and hardware.
  3. It also offers protection and security.
  4. Each system must be running the system software.
  5. The system software type includes single-user and multi-user operating system, multiprocessor operating system, true operating system, and distributed operating system.
  6. It is the first program that loads when you start your computer.

  kernel

  The kernel is the main component of the operating system. It is also a system program. It is part of the operating system which covers user commands in the language of machines.

  1. kernel is a system program that is part of the operating system.
  2. The kernel provides a black light hardware and application interface.
  3. Its main objectives are memory management, disk management, process management and project management.
  4. Every operating system needs a kernel to function.
  5. The nucleus type contains monochromatic systems and micro-systems.
  6. It is the first program that is loaded when the operating system is loaded.

  Answer: Following are the difference between API vs ABI

  API:

  API is the abbreviation for Application Programming Interface, a software server that allows two applications to talk to each other. Whenever you use apps like Facebook, send instant messages, or view the weather on your phone, you are using an API.

  ABI:

  A dual interface application (ABI) describes a low-level interface between two applications or an application and an operating system. ABI covers data type, size, arrangement, numbering, system numbering, and how applications should compose an operating system.

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