Skip to main content

1.Introduction To Operating System

By faizal

1.Introduction To Operating System

A program that acts as an intermediary between a user and the computer hardware

An operating system, or OS, is a software program that enables the computer hardware to communicate and operate with the computer software. Without a computer operating system, a computer would be useless

Operating systems can also be considered to be managers of the resources. An operating system determines which computer resources will be utilized for solving which  problem and the order in which they will be used

Software controlling the overall operation of a multipurpose computer system, including such tasks as memory allocation, input and output distribution, interrupt processing, and job scheduling

1.1 Understand Terms and Concepts of Operating System

  • Batch Systems: No User Interaction 
    Batch System
  • Multi-Programming: Multiple Programs Loaded in Memory 
    Multi-Programming
  • Time-sharing: each process receives slices of CPU time 
    Time Sharing 
  • Interactive systems: provides quick response to user’s actions
    Add caption
  • Multi-user: distinction between users
    Multi User
  • Network OS: users aware of the existence of multiple computers
    Network
  • Distributed OS: looks like a traditional single-processor system
    Distributed
  • Processes, Files, System Calls
    File


Labels:

Comments

  1. Anali20 November 2024 at 21:15

    An Introduction to Operating Systems is essential for understanding how computers manage resources and execute tasks. With PoE Hub, you can explore tools that optimize your operating system's functionality, ensuring a smoother and more efficient experience.

    ReplyDelete

Post a Comment

Popular posts from this blog

3.1.1 Identify Between Resident And Transient Routines

By
Memory Management Memory management is concerned with managing: The computer’s available pool of memory Allocating space to application routines and making sure that they do not interfere with each other. 3.1.1 Identify between resident and transient routines The operating system is a collection of software routines. Resident routines Transient routines Routines that directly support application programs as they run Stored on disk and read into memory only when needed Example: routine that control physical I/O Example: routine that formats disks The operating system occupies low memory beginning with address 0. Key control information comes first followed by the various resident operating system routines. The remaining memory, called the transient area, is where application programs and transient operating system routines are loaded. Resident & transient routines structure
26 comments
Read more

Operating Systems Definition and the Classification of OS

By
             OPERATING SYSTEMS ( OS ) What is an operating system? An operating system (sometimes abbreviated as "OS") is the program that, after being initially loaded into the computer by a boot program, manages all the other programs in a computer. The other programs are called applications or application programs. The application programs make use of the operating system by making requests for services through a defined application program interface (API). In addition, users can interact directly with the operating system through a user interface such as a command language or a graphical user interface (GUI). An operating system performs these services for applications:     In a multitasking operating system where multiple programs can be running at the same time, the operating system determines which applications should run in what order and how much time should be allowed for each application before giving another application a turn.     It manages the sharing of
15 comments
Read more

2.1.4 Distinguish between logical I/O and physical I/O

By faizal
2.1.4 Distinguish between logical I/O and physical I/O logical input relate to hard disk Logical I/O an Physical I/O Physical" I/O is an actual fetch of data from a storage device such as a disk. Logical" I/O is a programmatic request for data satisfied by a memory (block, buffer) access. A logical I/O may cause a physical I/O in the first place, or a logical I/O may retrieve a part of a block (buffer) of data from memory. 2.1.5 Distinguish between directory management and disk space management. Directory management A directory is a hierarchical collection of directories and files.  The only constraint on the number of files that can be contained in a single directory is the physical size of the disk on which the directory is located. Disk management A hard disk is a rigid disk inside a computer that stores and provides relatively quick access to large amounts of data. It is the type of storage most often used with Windows. The system also supp
21 comments
Read more