Computer Science - IT MCQs
Topic Notes: Computer Science - IT
<p>MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.</p>
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
51
Even when multiple applications are open simultaneously, how many programs are considered to be in the active state at any given moment?
Answer:
one
In modern operating systems, while many programs can be open in the background, only one program is considered 'active' or 'in focus' at any specific time. The active program is the one currently receiving input from the user's keyboard or mouse.
52
Which type of memory provides the fastest access time?
Answer:
Cache
Cache memory is a small, high-speed type of volatile computer memory that provides high-speed data access to the processor.
53
In the Windows operating system, where are the current date and time typically displayed?
Answer:
Task bar (system tray)
In the Windows desktop environment, the taskbar is located at the bottom of the screen by default.
54
In the context of operating systems, what is another term for a process?
Answer:
program
In computing, a process is essentially an instance of a computer program that is being executed by one or many threads.
55
How is the MS-DOS operating system classified in terms of its user interface and task management capabilities?
Answer:
command-driven interface, single-tasking operating system
MS-DOS (Microsoft Disk Operating System) is a command-line interface operating system. It requires users to type text commands to interact with the system.
56
Which version of the Microsoft Windows operating system notably omitted the traditional Start button?
Answer:
Windows 8
Windows 8 was released with a significant interface change that replaced the traditional Start menu and Start button with a full-screen Start screen.
57
What is the full form of the acronym NOS in a computing context?
Answer:
Network Operating system
A Network Operating System (NOS) is a specialized operating system designed to support workstations, personal computers, and older terminals that are connected on a local area network (LAN).
58
The modern macOS operating system is built upon which underlying operating system architecture?
Answer:
Unix
Apple's macOS is a proprietary operating system that is based on the Darwin core, which is a Unix-based system.
59
Which operating system is known for utilizing a layered architectural structure?
Answer:
UNIX
The UNIX operating system is famously designed using a layered approach.
60
Which keyboard shortcut opens the Task Manager directly in Windows 10?
Answer:
Ctrl + Shift + Esc
The Ctrl + Shift + Esc keyboard shortcut is the fastest way to open the Task Manager in Windows 10.