What is convenience in operating system?
1.6 How to make OS development easierOS images should be easy to generate. Ideally, an OS image should simply be an ordinary 32-bit executable file in whatever file format the operating system normally uses. It should be possible to Show Unfortunately, there is a horrendous variety of executable file formats even among free Unix-like PC-based operating systems — generally a different format for each operating system. Most of the relevant free operating systems use some variant of a.out format, but some are moving to ELF. It is highly desirable for boot loaders not to have to be able to interpret all the different types of executable file formats in existence in order to load the OS image — otherwise the boot loader effectively becomes operating system specific again. This specification adopts a compromise solution to this problem. Multiboot-compliant OS images always contain a magic Multiboot header (see OS image format), which allows the boot loader to load the image without having to understand numerous a.out variants or other executable formats. This magic header does not need to be at the very beginning of the executable file, so kernel images can still conform to the local a.out format variant in addition to being Multiboot-compliant. IntroductionAn operating system is a program that manages a computer's hardware. It also provides a basis for application programs and acts as an intermediary between the computer user and the computer hardware. An amazing aspect of operating systems is how they vary in accomplishing these tasks. Mainframe operating systems are designed primarily to optimize utilization of hardware. Personal computer (PC) operating systems support complex games, business applications, and everything in between. Operating systems for mobile computers provide an environment in which a user can easily interface with the computer to execute programs. Thus, some operating systems are designed to be convenient, others to be efficient, and others to be some combination of the two. Before we can explore the details of computer system operation, we need to know something about system structure. We thus discuss the basic functions of system startup, I/O, and storage early in this chapter. We also describe the basic computer architecture that makes it possible to write a functional operating system. Because an operating system is large and complex, it must be created piece by piece. Each of these pieces should be a well-delineated portion of the system, with carefully defined inputs, outputs, and functions. In this chapter, we provide a general overview of the major components of a contemporary computer system ... An operating system acts as a communication bridge (interface) between the user and computer hardware. The purpose of an operating system is to provide a platform on which a user can execute programs in a convenient and efficient manner. An operating
system is a piece of software that manages the allocation of computer hardware. The coordination of the hardware must be appropriate to ensure the correct working of the computer system and to prevent user programs from interfering with the proper working of the system. What is operating system ? The main task an operating system carries out is the allocation of resources and services, such as allocation of: memory, devices, processors and information. The operating system also includes programs to manage these resources, such as a traffic controller, a scheduler, memory management module, I/O programs, and a file system. Important functions of an operating system:
Moreover, operating system also provides certain services to the computer system in one form or the other. The operating system provides certain services to the users which can be listed in the following manner:
All these services are ensured by the operating system for
the convenience of the users to make the programming task easier. All different kinds of operating system more or less provide the same services. Adapted from: What are the 4 types of operating system?Types of Operating System. Batch OS.. Distributed OS.. Multitasking OS.. Network OS.. Real-OS.. Mobile OS.. How does the operating system makes the computer system more convenient to use?An operating system acts as a communication bridge (interface) between the user and computer hardware. The purpose of an operating system is to provide a platform on which a user can execute programs in a convenient and efficient manner.
What are the 5 operating system?For the most part, the IT industry largely focuses on the top five OSs, including Apple macOS, Microsoft Windows, Google's Android OS, Linux Operating System, and Apple iOS.
In what way does the OS support convenient access for a user?The OS ensures that all access to system resources is controlled. The OS ensures that external I/O devices are protected from invalid access attempts. The OS provides authentication features for each user by means of passwords.
|