41. Which computer type is used in banks and airlines?
A) Laptop
B) Mainframe
C) Tablet
D) Smartphone
Answer: B) Mainframe
42. The first step in computer processing is:
A) Output
B) Input
C) Storage
D) Processing
Answer: B) Input
43. The final result produced by a computer is:
A) Data
B) Input
C) Output
D) Storage
Answer: C) Output
44. Which device is used to hear sound from a computer?
A) Speaker
B) Monitor
C) Keyboard
D) Mouse
Answer: A) Speaker
45. Computers operate using:
A) Binary numbers
B) Decimal numbers
C) Roman numbers
D) Fractions
Answer: A) Binary numbers
47. Binary system uses:
A) 0 and 1
B) 1 and 2
C) 0 and 2
D) 1 and 3
Answer: A) 0 and 1
48. Which computer type is used for scientific research?
A) Laptop
B) Supercomputer
C) Tablet
D) Smartphone
Answer: B) Supercomputer
49. Which device is used to control the cursor?
A) Printer
B) Mouse
C) Monitor
D) Scanner
Answer: B) Mouse
50. A computer cannot work without:
A) Hardware and software
B) Monitor
C) Printer
D) Scanner
Answer: A) Hardware and software
50. Computers are known for their:
A) Speed and accuracy
B) Laziness
C) Emotions
D) Creativity
Answer: A) Speed and accuracy