PPSC COMPUTER OPERATOR PAST PAPER 14-02-2026
پیپر میں جانے سے
پہلے یہ سوالات و سلیبس ایک بار ضرور پڑھ کر جائیں
PPSC 25
years Past Papers Click here
چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
- 1
- 2
- 3
- 4
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
MS Access has primary one key (or a single composite key) per table.
This key must be a unique, non-null field or a combination of fields
That identifies each record, acting as the primary identifier for database relationships.
Last updated 15-feb-2026
تعطل کی بازیابی کے لئے مندرجہ ذیل میں سے کون سی تکنیک آسانی سے سی پی یو کے بارے میں ہے؟
- Starvation
- Resource Description
- Process Termination
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Regarding deadlock recovery techniques, is Process Termination.
It is considered an "easy" technique regarding CPU management
Because it uses simple logic to break a deadlock cycle:
اینڈرائیڈ سسٹم کس نے بنایا؟
- Microsoft
- Google
- Iphone
- Nonen of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Google established (acquired and further developed) the Android system.
NOTE
Original Development: Android Inc. was founded in 2003 by Andy Rubin, Rich Miner, Nick Sears, and Chris White.
Acquisition: Google acquired Android Inc. in 2005.
Release: The first commercial Android device was released in 2008
Last updated 15-feb-2026
- A temporary memory in the hard disk
- A permanent memory in the hard disk
- Method of using hard disk space to provide extra memory
- Bad sector on hard disk
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Virtual memory is a memory management technique
Used by operating systems (OS)
That extends a computer’s physical RAM by temporarily transferring data to disk storage.
Last updated 15-feb-2026
فون نیومین آرکیٹیکچر میں کون سا شامل نہیں ہے؟
- Control Unit
- Arithmetic Logic Unit (ALU)
- Memory Unit
- Separate Instruction and Data Memory
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Separate instruction and data memory is a feature of Harvard architecture, not Von Neumann.
The Von Neumann architecture includes:
In Von Neumann architecture, data and instructions share the same memory.
Last updated 15-feb-2026
آپریٹنگ سسٹم کا وہ حصہ جو ہارڈویئر وسائل کو منظم کرتا ہے، کیا کہلاتا ہے؟
- Compiler
- Kernel
- Browser
- Application Software
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
The Kernel (operating system) is the core part of an operating system.
It manages:
-
CPU (processor)
-
Memory (RAM)
-
Input/Output devices
-
Hardware resources
The kernel acts as a bridge between hardware and software.
Last updated 15-feb-2026
یونکس میں کون سا سسٹم کال نیا پروسیس بناتا ہے؟
- exec()
- fork()
- wait()
- exit()
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
The fork (system call) system call is used in Unix to create a new process.
-
It creates a child process that is an exact copy of the parent process.
-
After fork(), both parent and child processes run independently.
Last updated 15-feb-2026
ونڈوز ۱۰ میں بیک اپ اور ریسٹور میں کون سا درست آپشن ہے؟
- Disk Cleanup
- File History
- Task Manager
- Device Manager
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
In Windows 10, File History is a built-in backup feature.
It allows users to:
-
Automatically back up personal files
-
Restore previous versions of files
-
Recover deleted documents
It is available under Backup Settings in Windows 10
Last updated 15-feb-2026
چیک پوائنٹس کیا ہوتے ہیں؟
- Security passwords
- Backup copies of software
- Saved states of a system for recovery
- Antivirus programs
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
A checkpoint is a saved state of a system, database, or process.
-
In databases, it saves the current state so recovery can start from that point.
-
In operating systems, it helps restore the system after failure.
It improves reliability and recovery speed.
Last updated 15-feb-2026
فائلز کو کس چیز سے پہچانا جاتا ہے؟
- Size
- Name
- Extension
- Date
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Files are recognized by their file extension, which appears after the dot (.) in a filename.
For example:
The extension tells the operating system which program should open the file.
Last updated 15-feb-2026
