Operating System - Study Mode

[#21] Which of the following does not support more than one program at a time?
Correct Answer

(A) DOS

Explanation

Solution: 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.

[#22] Which of the following is not an operating system?
Correct Answer

(D) Oracle
(G) Pascal
(L) Notepad

Explanation

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

[#23] Linux is a(n) ....... operating system
Correct Answer

(A) Open source

Explanation

Solution: 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.

[#24] Which operating system can you give smallest file name?
Correct Answer

(B) Dos

Explanation

Solution: 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).

[#25] Which one is not operating system?
Correct Answer

(A) P11

Explanation

Solution: 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.