Information Technology (IT) MCQs - Computer Practice | PakExamPoint
Practise Information Technology (IT) MCQs in Computer. Attempt multiple-choice questions, check answers and revise related subtopics.
Information Technology (IT) MCQs and revision practice
Study Information Technology (IT) through multiple-choice questions in Computer. This subtopic contains 2241 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.
Use these Information Technology (IT) MCQs to identify the facts, rules or methods you need to revise. Where an explanation is available, work through it and write down why your chosen option was correct or incorrect. Revisit difficult questions after reviewing your notes, then use exam mode for timed practice.
Explanation Mac OS is an operating system developed and marketed by Apple Inc. since 2001 . It is the primary operating system for Apple's Mac computers. NA22-9-2023
A. Method of using hard disk space to provide extra memory
B. A permanent memory in the hard disk
C. A temporary memory in the hard disk
D. Bad sector on hard disk
Check answer and explanation
Answer: A temporary memory in the hard disk
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
مندرجہ ذیل میں سے ببل سورٹ الگورتھم کے اوسط کیس ٹائم کمپلیکسٹی کیا ہے؟
A. O(n²)
B. O²(n)
C. O(n)
D. None of these
Check answer and explanation
Answer: O(n²)
Explanation Bubble Sort repeatedly compares and swaps adjacent elements until the array is sorted. Average case involves roughly n(n-1)/2 comparisons, which gives O(n²) time complexity . Best case: O(n) if the array is already sorted (with optimized check). Worst case: O(n²) when the array is reverse sorted. Last verified on 24-03-2026
Explanation USB 3.0 is a high-speed connection standard that can transfer data at speeds of up to 5 Gbps ( gigabits per second ), making it ideal for high data transfer.
کمپیوٹر کو بوٹ کرنے کے لئے کس قسم کی میموری کا استعمال کیا جاتا ہے؟
A. RAM
B. ROM
C. Hard Disk
D. None of these
Check answer and explanation
Answer: ROM
Explanation ROM (Read-Only Memory) contains the firmware or BIOS needed to boot the computer. It is non-volatile , meaning it retains data even when the power is off.
Explanation John Vincent Atanasoff invented the first digital computer in 1930 . The inventor of the first Digital Computer belonged to the country: USA John Vincent Atanasoff died in 1995 . Digital computer: The Digital Computer operates on a Binary system The computer that processes both analog and digital signals is called a hybrid computer. ND7-5-2023
Explanation Load balancing distributes incoming data across multiple systems to reduce overload. Throttling limits the rate of incoming requests to keep the system stable. These methods help prevent crashes while keeping services running .
اگر کمپیوٹرز کو ان کے سائز کے مطابق تقسیم کیا جائے تو کون سا آپشن درست ہے؟
A. Analog, Digital, Hybrid
B. Mainframe, Mini frame, Supercomputer, Microcomputer
C. None of these
D. General purpose, Special purpose
Check answer and explanation
Answer: Mainframe, Mini frame, Supercomputer, Microcomputer
Explanation Computers can be classified by size and capacity . Size-based classification includes micro, mini, mainframe, and supercomputers . These differ in speed, storage, and processing power. Last verified on 11-04-2026
کسی دستاویز میں متن کی لکیروں کے درمیان عمودی جگہ کی مقدار کو ___________ کہا جاتا ہے؟
A. Single space
B. Line spacing
C. Vertical spacing
D. Double-space
Check answer and explanation
Answer: Line spacing
Explanation Line spacing determines the amount of vertical space between lines of text in a paragraph. By default, lines are single-spaced, meaning that the spacing accommodates the largest font in that line, plus a small amount of extra space.
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