"THE HOLY QURAN AND STATISTICS"

Surah Al-Jinn (72:28):
وَأَحْصَىٰ كُلَّ شَيْءٍ عَدَدًا
"And He has enumerated everything in numbers." (Allah perfectly counts and knows the exact measure of all creations).

(F.Sc. Part – 2, Chapter 17: Computers)

Q1. Which is odd one out?

A. Charles Babbage

B. United Kingdom

C. Analytical Engine

D. Correlation ✓ Correct Answer

Explanation: Charles Babbage, United Kingdom, and the Analytical Engine are all linked to the invention of the computer; correlation is a statistical term unrelated to that history.

Q2. The first computer was designed by?

A. Pearson

B. Charles Babbage ✓ Correct Answer

C. Marshal

D. Gauss

Explanation: Charles Babbage is credited with designing the first mechanical computer, the Analytical Engine.

Q3. It has features of both analog and digital computers?

A. Hybrid ✓ Correct Answer

B. Wending watch

C. Digital computers

D. None

Explanation: A hybrid computer combines features of both analog and digital computers.

Q4. Modem is an example of?

A. Hybrid device ✓ Correct Answer

B. Digital device

C. Analog device

D. None

Explanation: A modem converts digital signals to analog and back again, making it a hybrid device.

Q5. Which is an analog computer?

A. Dial clock

B. Thermometer

C. Weighing machine

D. All ✓ Correct Answer

Explanation: Dial clocks, thermometers, and weighing machines all measure continuously varying physical quantities, making them analog computers/devices.

Q6. All the computer's sources are managed from the:

A. AU

B. C.U ✓ Correct Answer

C. OS

D. ALU

Explanation: The Control Unit (C.U) manages and coordinates all the resources and operations of a computer.

Q7. The logical bus of computer is:

A. AU

B. C.U

C. OS

D. ALU ✓ Correct Answer

Explanation: The Arithmetic Logic Unit (ALU) is responsible for logical operations within the computer.

Q8. ALU stands for:

A. Arithmetic logical unit ✓ Correct Answer

B. All logical unit

C. Alone logical unit

D. None

Explanation: ALU stands for Arithmetic Logic Unit, which performs arithmetic and logical operations.

Q9. CPU stands for:

A. Central plain unit

B. Central programming unit

C. Central processing unit ✓ Correct Answer

D. None

Explanation: CPU stands for Central Processing Unit, the main processing component of a computer.

Q10. Which is not an input device?

A. Key board

B. Mouse

C. Monitor ✓ Correct Answer

D. Joystick

Explanation: A monitor is an output device used to display information, not to input it.

Q11. Which is not an output device?

A. Plotter

B. Printer

C. Monitor

D. Light pen ✓ Correct Answer

Explanation: A light pen is used to point at or interact with the screen, making it an input device, not an output device.

Q12. Key board, mouse, scanner are:

A. Input devices ✓ Correct Answer

B. Output devices

C. Memory storages

D. None

Explanation: Keyboard, mouse, and scanner are all used to enter data into a computer, so they are input devices.

Q13. Track ball is?

A. Input device

B. Output devices

C. Pointing devices

D. a and c ✓ Correct Answer

Explanation: A trackball is used to input data by pointing and selecting, so it is both an input device and a pointing device.

Q14. Touch ball is?

A. Input devices

B. Pointing devices

C. Out put device

D. a and c ✓ Correct Answer

Explanation: Like a trackball, a touch ball is used for pointing and input, making it both an input device and a pointing device.

Q15. Light pen is:

A. Input devices

B. Pointing devices

C. Out put device

D. a and c ✓ Correct Answer

Explanation: A light pen is used to point at and interact with the screen, making it both an input device and a pointing device.

Q16. RAM stands for?

A. Random access memory ✓ Correct Answer

B. Real access memory

C. Read access memory

D. None

Explanation: RAM stands for Random Access Memory, the computer's temporary working memory.

Q17. RAM is:

A. Permanent storage memory

B. Primary storage memory

C. Main memory

D. b and d ✓ Correct Answer

Explanation: RAM is a primary storage memory and is also considered the main memory of a computer — both (b) and (d) apply.

Q18. Which memory can't be changed?

A. RAM

B. ROM ✓ Correct Answer

C. DISK

D. None

Explanation: ROM (Read Only Memory) stores fixed data that cannot normally be altered.

Q19. Which is not a secondary storage?

A. RAM ✓ Correct Answer

B. Diskettes

C. Magnetic tape

D. None

Explanation: RAM is primary (main) memory, not secondary storage, unlike diskettes and magnetic tape.

Q20. Which is permanent memory storage?

A. CD-disk ✓ Correct Answer

B. Real access memory

C. Read access memory

D. None

Explanation: A CD-disk stores data permanently, unlike RAM which loses data when power is off.

Q21. 1 MB equals:

A. 1048576 ✓ Correct Answer

B. 2048576

C. 3048576

D. 4048576

Explanation: 1 MB = 1024 × 1024 bytes = 1,048,576 bytes.

Q22. Set of electronic instructions is called:

A. Hardware

B. Software ✓ Correct Answer

C. Output device

D. None

Explanation: A set of electronic instructions that tells the computer what to do is called software.

Q23. A high speed memory that is built into the processor is called:

A. RAM

B. ROM

C. Cache ✓ Correct Answer

D. All

Explanation: Cache memory is a small, high-speed memory built directly into the processor to speed up data access.

Q24. Arithmetic operations are carried out by:

A. ALU ✓ Correct Answer

B. CU

C. DOS

D. ROM

Explanation: The Arithmetic Logic Unit (ALU) performs all arithmetic operations in a computer.

Q25. Which is a low level language?

A. FORTRAN

B. BASIC

C. COBOL

D. Assembly ✓ Correct Answer

Explanation: Assembly language is a low-level language, closely tied to machine code, unlike FORTRAN, BASIC, and COBOL which are high-level languages.

Q26. Which is a high level language?

A. FORTRAN

B. BASIC

C. COBOL

D. All ✓ Correct Answer

Explanation: FORTRAN, BASIC, and COBOL are all examples of high-level programming languages.