This page lists all 82 published Computer Science MCQs on Operating Systems, newest first, out of 1,397 in Computer Science. Each has the answer highlighted and an explanation reviewed by a validator before publishing.
Other Computer Science topics with their own pages: Networking and Internet, Memory and Storage, Computer Hardware and Devices, History and Generations of Computers, Programming Languages.
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Operating Systems
When did Microsoft release the first version of Windows?
Correct answer: A
Microsoft released the first version of Windows, Windows 1.0, in 1985. Therefore, option A is correct.
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Operating Systems
The _________ displays the name of every computer user on the computer.
Correct answer: B
The welcome screen in most operating systems displays the names of all user accounts on the computer, allowing users to select their profile to log in. This matches option B, making it the correct answer.
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Operating Systems
Which of the following Windows versions was not officially released?
Correct answer: A
Windows 9 was never officially released by Microsoft; they skipped directly from Windows 8 to Windows 10. Windows 8, 10, and 11 were all officially released versions.
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Operating Systems
The time and date are displayed on which bar in a computer's interface?
Correct answer: A
The time and date are typically displayed on the Task Bar in a computer's interface, usually at the bottom right corner of the screen in Windows operating systems.
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Operating Systems
Which of the following is a single-user operating system? Linux Windows 7 MS-DOS Windows NT
Correct answer: C
MS-DOS is a single-user operating system designed for one user at a time, whereas Linux, Windows 7, and Windows NT support multiple users and multitasking.
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Operating Systems
The process of starting an operating system when the user turns on a computer is known as ____:
Correct answer: A
The process of starting an operating system when the user turns on a computer is called booting. It involves loading the OS into the computer's memory to make it operational.
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Operating Systems
In 1981, IBM introduced PC-DOS, developed by Microsoft, later known as ____.
Correct answer: A
PC-DOS, introduced by IBM in 1981 and developed by Microsoft, was later known as MS-DOS. It was the operating system for IBM PCs before Windows became dominant.
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Operating Systems
"Add or Remove Programs" is a(an) ____:
Correct answer: C
"Add or Remove Programs" is a utility program in Windows that allows users to install, uninstall, or change software applications, making it a utility program rather than productivity software, file manager, or device driver.
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Operating Systems
The Shut down option is available on which of the following?
Correct answer: A
The Shut down option is available on the Start menu in Windows operating systems, allowing users to power off the computer. It is not found on the Task bar, Status bar, or Title bar.
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Operating Systems
In the Windows Operating System, ____ is known as a File Manager.
Correct answer: A
Windows Explorer is the file management utility in the Windows Operating System used to browse, open, and manage files and folders. MS Word and MS Excel are applications for document and spreadsheet editing, while My Documents is a folder, not a file manager.
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Operating Systems
The first operating system, developed in 1956 by General Motors for the IBM 701, was a ____.
Correct answer: B
The first operating system developed in 1956 by General Motors for the IBM 701 was a batch processing operating system, designed to automate the sequential execution of jobs without manual intervention. This predates real-time, multi-user, and GUI-based OS developments.
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Operating Systems
In Microsoft Windows 7, which of the following is not a gadget?
Correct answer: A
In Windows 7, gadgets are small applications like Weather, Date and Time, and News that appear on the desktop. The Recycle Bin is a system folder icon, not a gadget, so it is correctly identified as not being a gadget.
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Operating Systems
The primary purpose of an operating system is:
Correct answer: A
The primary purpose of an operating system is to manage computer hardware efficiently, enabling other software and users to utilize the hardware effectively. While making computers easier to use is a benefit, the core function is hardware management.
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Operating Systems
The Windows version that introduced the Start Menu and true multitasking in 1995 was ____.
Correct answer: C
Windows 95, released in 1995, was the first Windows version to introduce the Start Menu and true multitasking capabilities, making it a significant milestone in the Windows operating system evolution.
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Operating Systems
From 1941 to 1956, early computers had ____.
Correct answer: B
Early computers from 1941 to 1956 did not have operating systems as we understand them today. They were operated manually or with simple control programs, so 'No Operating System' is correct. Batch OS, UNIX-like OS, and MS-DOS were developed later.
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Operating Systems
Which Windows version was released immediately after Windows 98?
Correct answer: D
Windows ME (Millennium Edition) was released after Windows 98. Windows 98 was released in 1998, Windows ME was released in 2000, and Windows XP followed in 2001. Windows Vista and Windows 7 were released much later, in 2007 and 2009 respectively. Therefore, the Windows version released immediately after Windows 98 was Windows ME, not Windows XP.
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Operating Systems
Which one is an Operating System?
Correct answer: B
Windows 2000 is an operating system developed by Microsoft, whereas Harvard Graphics is a presentation software, MS-Office is an office suite, and C++ is a programming language.
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Operating Systems
Who created UNIX in 1969 at Bell Labs?
Correct answer: B
Ken Thompson and Dennis Ritchie created UNIX in 1969 at Bell Labs, making option B correct. The other options list individuals associated with other technologies or operating systems.
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Operating Systems
Microsoft released Windows NT, with improved kernel and stability, in ____.
Correct answer: B
Microsoft released Windows NT 3.1, the first version of the Windows NT line with an improved kernel and enhanced stability, in 1993. This marked a significant advancement over previous Windows versions.
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Operating Systems
Windows 8 (2012) introduced a controversial change. What was it?
Correct answer: B
Windows 8 introduced a controversial change by removing the traditional Start button from the taskbar, which confused many users accustomed to previous Windows versions. This change was widely discussed and criticized, making it a notable feature of Windows 8.
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Operating Systems
Windows Vista (2006) introduced a new interface, but what drawback made it unpopular?
Correct answer: B
Windows Vista introduced the Aero interface which required significantly more hardware resources, making it unpopular on older or less powerful computers.
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Operating Systems
In which type of operating system are the time intervals to process and respond to inputs very small?
Correct answer: C
Real-time operating systems are designed to process and respond to inputs within very small, predictable time intervals, ensuring timely and deterministic responses critical for real-time applications.
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Operating Systems
Which Windows version, launched in 2001, became one of the most popular for stability and usability?
Correct answer: C
Windows XP, launched in 2001, became widely popular due to its improved stability and user-friendly interface compared to previous versions, making it one of the most successful Windows releases.
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Operating Systems
In which Windows version was the option 'My Computer' introduced?
Correct answer: C
The 'My Computer' option was introduced in Windows 95 as a central place to access drives, files, and system settings, replacing earlier methods used in previous Windows versions.
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Operating Systems
The Windows version that improved internet integration in 1998 was ____.
Correct answer: C
Windows 98, released in 1998, significantly improved internet integration compared to its predecessors by including Internet Explorer tightly integrated into the operating system and better support for internet technologies.
