[SOLVED] HOW TO START APACHE SERVER? APACHE2.SERVICE FAILED WITH RESULT ‘EXIT-CODE’.
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To identify the processes in the operating system each process is assigned a process identification number(PID). As Operating System supports multiprogramming, it needs to keep track of all processes. Process Control Block is used to track the process execution status.
Open Source refers to any program whose source code is made available for use or modification as users other developers see fit. Usually, this kind of operating system is developed as a public collaboration and made freely available to everyone. Most of the open-source operating system was released under a license where the copyright holder allows others to study, change as well as distribute software to other people
The operating system(OS) is the collection of software that directs a computer’s operations, controlling and scheduling the execution of other programs, and managing storage, input/output,and communication resources.Basically, the operating system is an interface between the user and machine. It helps user to communicate with machines. Below are the list of widely used variations of the operating system…
Most of the operation can be done in two ways i.e. via user interface and via the command line interface (CLI). This turotial of creating new user in CentOS will be donw via the command line terminal. Tutorial covers topics such as creation of user, adding a password, deleting user ans listing the user information.