Operating System mcq questions With Answer | OS Question | Computer Fundamental

DOS is a family of disk operating systems. DOS primarily consists of MS-DOS and a rebranded. Only one program at a time can use them and DOS itself has no functionality to allow more than one program to execute at a time.

Oracle database (Oracle DB) is a relational database management system (RDBMS) from the Oracle Corporation.

Linux is a family of free and open-source software operating systems built around the Linux kernel. Typically, Linux is packaged in a form known as a Linux distribution for both desktop and server use.

DOS (Disk Operating System) is an operating system that runs from a hard disk drive. The term can also refer to a particular family of disk operating systems, most commonly MS-DOS (Microsoft Disk Operating System).

An operating system (OS) is system software that manages computer hardware, software resources, and provides common services for computer programs. Early computers were built to perform a series of single tasks, like a calculator. Basic operating system features were developed in the 1950s, such as resident monitor functions that could automatically run different programs in succession to speed up processing.

DOS is not a multitasking operating system. DOS did however provide a Terminate and Stay Resident (TSR) function which allowed programs to remain resident in memory.

Sleep mode, sometimes called standby or suspend mode, is a power-sparing state that a computer can enter when not in use. The computer's state is maintained in RAM (random access memory). A computer usually wakes from sleep mode through touching a key, clicking the mouse or pressing the power button.

Welcome screen displays the name of every computer user on the computer display screen (Computer Monitor).

The category of software most appropriate for controlling the design and layout of complex document like newsletters and brochure is Word processing.

Virus scanning is not a system tool as tools such as disk defragmenter, backup, et cetera assist in system maintenance. It does basic maintenance to keep system running smoothly.