CS101 Midterm MCQs 2026

Virtual University of Pakistan

Regional Campus PLHR-49 Allama Iqbal Road, Lahore

CS101 MIDTERM 2026 MCQS FILES

Topic: Introduction to Computer Science

Q1. What is the physical part of a computer system called?

Software Hardware Database Algorithms

Correct option: B (Hardware)

Topic: Search Engines

Q2. Which symbol is used to search on a specific social media platform in Google?

Topic: Roots of Computing

Q3. Which early computing device was created in ancient China and uses beads on rods?

ENIAC Abacus Pascal's Calculator Punch Cards

Correct option: B (Abacus)

Topic: Roots of Computing

Q4. Which machine developed in the 1940s used 20,000 vacuum tubes?

ENIAC Abacus Mark I Gears

Correct option: A (ENIAC)

Topic: Bits

Q5. How many bits make up one byte?

Correct option: B (8)

Q6. Which Boolean operation outputs 1 only when both inputs are 1?

OR XOR AND NOT

Correct option: C (AND) C. D.

C. D.

C. D.

C. D.

C. D.

C. D.

Q7. Which Boolean operation outputs 1 when inputs are different?

AND NOT OR XOR

Correct option: D (XOR)

Topic: Hexadecimal Notation

Q8. In hexadecimal notation, a single symbol represents how many bits?

Correct option: B (4)

Topic: Hexadecimal Notation

Q9. What is the hexadecimal representation of the binary pattern 1010?

A B

Correct option: C (A)

Topic: Storing a Bit

Q10. What type of main memory allows cells to be accessed independently in any order?

Magnetic Tape ROM RAM CD

Correct option: C (RAM)

Topic: Magnetic Systems

Q11. The time required to move the read/write heads from one track to another on a magnetic disk is called:

Rotation Delay Seek Time Access Time Transfer Rate

Correct option: B (Seek Time)

Topic: Magnetic Systems

Q12. The sum of seek time and rotation delay is known as:

Transfer Rate Latency Access Time Execution Time

Correct option: C (Access Time)

Topic: Optical System

Q13. Which of the following uses a blue-violet laser to store up to five times more data than DVDs?

CD Magnetic Disk Blu-ray Disks (BDs) Flash Drive

Correct option: C (Blu-ray Disks (BDs)) C. D.

C. D.

C. D.

C. D.

C. D.

C. D.

C. D.

Topic: Flash Drives

Q14. How are bits stored in flash drive technology?

By burning holes in a disk By aligning magnetic fields By trapping electrons in silicon dioxide chambers By spinning optical plates

Correct option: C (By trapping electrons in silicon dioxide chambers)

Topic: Representing Text

Q15. How many bits are traditionally used for a standard ASCII character?

Correct option: A (7)

Topic: Representing Text

Q16. Which standard uses 21 bits to support characters of multiple international languages?

ASCII Unicode UTF-8 EBCDIC

Correct option: B (Unicode)

Topic: Representing Images

Q17. What is the short form for 'Picture Element'?

Dot Pix Pixel Point

Correct option: C (Pixel)

Topic: Representing Sound

Q18. Which of the following encodes directions for producing music rather than storing the sound itself?

MP3 MIDI WAV FLAC

Correct option: B (MIDI)

Topic: Binary Notation

Q19. What is the decimal equivalent of the binary number 1011?

Correct option: C (11)

Topic: 2's Complement Notation

Q20. In two's complement notation, the leftmost bit is primarily used as the:

Sign bit Exponent bit Mantissa Parity bit

Correct option: A (Sign bit) C. D.

C. D.

C. D.

C. D.

C. D.

C. D.

C. D.