The computer's master control program. When a computer is turned on, a small "boot program" loads the operating system. Although additional system modules may be loaded as needed, the main part ...

Windows and OS X require different system calls. Your example C program uses printf, which sends characters to stdout—an OS specific resource that will display the characters on a user interface ...

An operating system is a collection (or suite) of programs that manages and controls the computer. Operating systems have many functions: A user interface is a program, or suite of programs that ...

System calls are “gates” into the kernel implemented with software interrupts. Software interrupts are interrupts produced by a program and processed in kernel mode by the operating system. The ...

After introducing interrupts and the foreground/background architecture, I am finally ready to tackle the concept of a Real-Time Operating System (RTOS).In this first lesson on RTOS (commonly ...

To some, an operating system is a burden or waste of resources, like those working on embedded systems and other low-power applications. To others it’s necessary, abstracting away hardware so… ...

By Lara Farrar, CNN No doubt, it is difficult to design operating systems for computers that simultaneously run numerous applications, while managing interactions between multiple types of ...

The operating system was created by Finnish programmer Linus Torvalds in 1991. Nowadays, programmers from all over the world collaborate on its open source code and submit tweaks to the central ...