Multiprocessor System Multiprocessor system which provide processing using more than one central processing units (CPU) or cores single computer. Multiple processers commonly share memory, peripheral devices which provide simultaneously processing…

Linux Operating System Linux Operating System is one of standard version of UNIX operating System. It is open source because its source code is freely available and it is free…

Multimedia System Multimedia System - Operating systems manage general data, such as text files, binary files, programs, word processing documents, and spreadsheets. In addition, operating systems can get the task…

OS Protection Principles of Protection The principle of least privilege commands that users, programs and systems be given just an adequate amount of privileges to perform their tasks. This make sure that…

Operating System Security Operating System Security - Security refers to delivering a protection system to computer system resources such as CPU, disk, memory, software programs and most prominently data and…

OS File System OS File System - A file is basically a name of collection of related information that is recorded on secondary storage such as magnetic tapes, magnetic disks…

IO Software IO software is frequently organized in the following layers User Level Libraries: This offers simple interface to the user program to perform input and output. stdiois an example…

Polling VS Interrupts Polling Polling is a method by which a host waits for controller’s response. It is a looping procedure, reading the status-register over and over till the busy…

I/O Hardware IO Hardware - Computers work on many types of devices. General types include storage devices e.g. disks, transmitters network cards, modems and human interface devices e.g. display, keyboard…

Mass Storage System Mass Storage System - This topic is about physical memory which use as secondary memory. Magnetic Disks A magnetic disk is a storage device which uses a…