Q21. Which of the following performs arithmetic and logical operations?
(A) Control Department
(B) Arithmetic Logical Unit
(C) I/O unit
(D) Register
(B) Arithmetic Logical Unit
Q22. What is the meaning of data processing?
(A) To do calculation work
(B) Collection of data
(C) Working system of computer
(D) Preparing information for commercial use
(D) Preparing information for commercial use
Q23. What is the full form of BIOS?
(A) Basic Integrated Operating System
(B) Basic Input Output System
(C) Binary Input Output System
(D) Business Information Operating System
(B) Basic Input Output System
Q24. Who developed the basic structure of computers?
(A) John Mauchly
(B) Jacquard
(C) Charles Babbage
(D) Blaise Pascal
(C) Charles Babbage
Q25. Whose speed is higher between human mind and computer?
(A) Computer
(B) Human mind
(C) Equal in both
(D) None of these
(B) Human mind
Q26. Which part of the computer is used for calculation and comparison?
(A) Arithmetic Logic Unit (ALU)
(B) Control Unit (CPU)
(C) Random Access Memory (RAM)
(D) Hard Disk Drive (HDD)
(A) Arithmetic Logic Unit (ALU)
Q27. Which of the following is a storage device?
(A) Hard disk
(B) USB disk
(C) Floppy disk
(D) All of the above
(D) All of the above
Q28. What is the meaning of software in the context of computers?
(A) Hardware
(B) Computer program
(C) Printer
(D) Monitor
(B) Computer program
Q29. Which is the largest software company in India?
(A) Infosys
(B) Tata Consultancy Services (TCS)
(C) Wipro
(D) Tata
(B) Tata Consultancy Services (TCS)
Q30. Who started punch cards?
(A) Jacquard
(B) Powers
(C) Pascal
(D) Herman Hollerith
(D) Herman Hollerith