To understand system calls, first one needs to understand the difference between kernel mode and user mode of a CPU. Every modern operating system supports these two modes. In computing, a system Read more →
Operating System - Basic
6 postsDual-mode operation forms the basis for I/O protection, memory protection and CPU protection. Two modes are provided by the hardware – user and kernel mode. Mode bit is added to computer hardware Read more →
The Operating system (OS) acts as a host for application programs that are run on the machine. Operating system (OS) is a software which acts as an interface between the end user Read more →
An Operating System (OS) is a collection of software that manages computer hardware resources and provides common services for computer programs. Application programs usually require an operating system to function. The fundamental Read more →
A process is a program in execution. Process States in Operating System : Each process goes through different states in its life cycle- New (Create) : Newly Created Process (or) being-created process. Read more →
Operating systems were first developed in the late 1950s to manage tape storage. The present-day popular OS Windows first came to existence in 1985 when a GUI was created and paired with Read more →