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۔
کمپیوٹر کی تیز ترین میموری کون سی ہے؟
- Main Memory
- SRAM
- Cache Memory
- DRAM
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
A cache is the smallest and the fastest memory in the computer.
Cache memory is also called CPU memory.
It temporarily stores frequently used data for quick access by the processor.
Last updated 15-feb-2026
کمپیکٹ ڈسک کی گنجائش _____ ہے؟
- 700 MB
- 600 MB
- 650 MB
- None of these
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Explanation
Standard Capacity: 700 MB / 80 minutes.
Alternative Sizes: 650 MB (earlier standard) to 800+ MB (extended).
Data Type: Used for audio (CD-DA), data (CD-ROM), and rewritable (CD-RW) media
Last updated 15-feb-2026
کمپیوٹر کا بنیادی ڈھانچہ کس نے تیار کیا تھا۔
- John Von Neumann
- Blaise Pascal
- Babbage
- None of these
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Explanation
The basic structure of a computer was developed by John von Neumann in 1945.
It is known as the von Neumann architecture or von Neumann model,
He was the Hungarian-American mathematician and physicist
Last updated 15-feb-2026
- 1
- 2
- 3
- 4
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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
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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
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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
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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
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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
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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()
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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