OPERATING SYSTEMS CONCEPTS
An Operating Systems (OS) is the actual program or software that controlls the allocation and use of computers hardware resources. It helpsthe computer in booting up and recognizes input/output devices. The Operating System keeps all components working i unison and acts as an interface between the user to the computers hardware and software. It takes charge of the activities from booting up to shutting down of the computer.
The BootSstrapping Process
In the Random Access Memory(ROM) a small piece of is stored and it is known as bootstrap program. This program is executed automatically every time the computer is turned on. This program instructs the CPU to load the contend in a particular location of the computer’s secondary storage devices int othe Random Access Memory (RAM). The secondary memory contains the operating systems. After this, the operating system takes over and begins controlling the computer’s activies until shutting down.
Components of an Operating Systems
User Interface. The operating system’s user interface are the things that the user see onscreen and interact with when going instructions and commands. A user communicates to hte machine or computer by typing commands using the keyboard or by issuing commands through the graphical user interface (GUI).
The kernel. The really core or an internal part of an operating systems is known as kernel. It regulatess disk files, program tasks, managing computer’s memory and program execution and processes. It controls computer’s hardware resources interfacing it with software that drives the hardware.
File Management System. It is the operating system’s organizer, and arranging files in a tree – like structure. It keeps records of all files stored in mass storage including where each file is located, which users are allowed to access the different files and wht portions of these devices are available.
Examples of operating systems are Microsoft Windows, MAC OS, Linux, Unix, MS – DOS
Did you enjoy this post? Why not leave a comment below and continue the conversation, or subscribe to my feed and get articles like this delivered automatically to your feed reader.
Comments
No comments yet.
Leave a comment