Computer Studies

Includes fundamentals of computers, hardware and software, operating systems, MS Office, internet, networking, and basic IT concepts for recruitment exams.

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1
Which of the following is NOT a responsibility of process management?
Medium 1 Mark
File permissions relate to file management.
A Scheduling processes for execution
B Managing communication between processes
C Controlling access permissions for files
D Allocating CPU time to processes
2
Which state comes after the 'Ready' state in a process lifecycle?
Medium 1 Mark
A 'Ready' process is waiting for the CPU to pick it up.
A New
B Waiting
C Running
D Terminated
3
Which CPU scheduling algorithm assigns the CPU to the process that arrives first?
Medium 1 Mark
The name itself describes the rule.
A Round Robin
B Shortest Job First (SJF)
C Priority Scheduling
D First Come First Serve (FCFS)
4
In which process state is a process waiting for an I/O event to complete?
Medium 1 Mark
When a process needs input from the keyboard or disk, it cannot run.
A New
B Ready
C Running
D Waiting
5
What is 'Paging' in memory management?
Medium 1 Mark
Pages are equal-sized blocks — like pages in a book.
A Dividing memory into logical sections based on program structure
B Dividing memory into fixed-size blocks
C Releasing memory after a program finishes
D Assigning memory to programs when needed
6
Which OS security feature converts data into an unreadable format to protect it?
Medium 1 Mark
En-crypt = to put into a code/secret format.
A File Permissions
B User Authentication
C Encryption
D Access Control
7
Which type of OS groups similar jobs and processes them without user interaction?
Medium 1 Mark
Batch = group — jobs are processed in groups.
A Real-Time Operating System
B Time-Sharing Operating System
C Batch Operating System
D Multiprocessing Operating System
8
Which OS type is used in air traffic control systems and medical equipment?
Medium 1 Mark
Real-time = immediate response required — used in critical systems.
A Batch Operating System
B Time-Sharing Operating System
C Multiprocessing Operating System
D Real-Time Operating System (RTOS)
9
Which OS type allows multiple users to share a computer simultaneously by rapidly switching the CPU?
Medium 1 Mark
Time-sharing = sharing CPU time among multiple users.
A Batch Operating System
B Time-Sharing Operating System
C Real-Time Operating System
D Multiprocessing Operating System
10
Which of the following is an example of a Time-Sharing Operating System?
Medium 1 Mark
Unix is one of the oldest multi-user OS examples.
A Early IBM Mainframe
B Unix
C Android
D MS-DOS
11
Which type of OS uses multiple CPUs to perform tasks simultaneously?
Medium 1 Mark
Multi-processing = multiple processors working at the same time.
A Batch Operating System
B Time-Sharing Operating System
C Multiprocessing Operating System
D Real-Time Operating System
12
Which of the following best describes the primary function of an Operating System?
Medium 1 Mark
The OS manages everything — memory, processes, files, and devices.
A To create documents and spreadsheets
B To manage hardware and software resources and provide services to programs
C To design web pages and applications
D To provide antivirus protection only
13
Which CPU scheduling algorithm gives each process an equal share of CPU time in turns?
Medium 1 Mark
Think of a round table — each person gets a turn.
A First Come First Serve (FCFS)
B Shortest Job First (SJF)
C Round Robin
D Priority Scheduling
14
What does the OS prevent when managing memory for multiple programs?
Medium 1 Mark
Each program should stay within its own memory boundaries.
A Programs from executing too fast
B Programs from accessing each other's memory
C Programs from using the GUI
D Programs from reading files
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