Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 388 · 40 questions

Remember (Find the topic, use the idea): Read the question and find its topic: hardware or software, units, memory, files, or editing text. Use that lesson’s idea — can you touch it, multiply to change units, RAM forgets, which file action, which shortcut. For unit sums, write the rule first (1 byte = 8 bits, 1 KB = 1024 bytes) and then multiply.

1. 1.🧩 Is a music player app hardware or software? (a) hardware (b) software
2. 2.💾 Which one is permanent storage: RAM or storage? (a) RAM (b) storage
3. 3.Which shortcut do we press to redo? (a) Ctrl+A (b) Ctrl+X (c) Ctrl+P (d) Ctrl+Y
4. 4.💾 Which is smaller: 1 GB or 1 TB? (a) 1 GB (b) 1 TB
5. 5.Which shortcut do we press to undo? (a) Ctrl+P (b) Ctrl+X (c) Ctrl+Z (d) Ctrl+Y
6. 6.💾 How many KB are there in 3 MB?
7. 7.📄 A file name ends in .mkv. What is it most likely? (a) a picture (b) a video (c) a document (d) a sound
8. 8.🔍 Which is the odd one out? (a) pen drive (b) hard disk (c) microphone (d) solid-state drive
9. 9.⚡ Which is faster for the computer to work with? (a) a pen drive (b) a printer (c) RAM (d) a memory card
10. 10.True or false: a projector is an output device. (a) True (b) False
11. 11.📁 Which word means to “see what is inside” (for a file or folder)? (a) save (b) delete (c) move (d) open
12. 12.True or false: to move a file means to put it in another place. (a) False (b) True
13. 13.🧾 Software is a set of ___ for the computer. (a) screws (b) buttons (c) instructions (d) wires
14. 14.True or false: RAM holds apps that are open. (a) True (b) False
15. 15.💾 How many MB are there in 3 GB?
16. 16.⌨️ In a word processor, what does Ctrl+A do? (a) save (b) select all (c) redo (d) copy
17. 17.🧩 Is a speaker hardware or software? (a) software (b) hardware
18. 18.True or false: to save a file means to store your work. (a) True (b) False
19. 19.🧩 Is a hard disk hardware or software? (a) software (b) hardware
20. 20.🔢 A bit can be only 0 or ___. (a) 5 (b) 9 (c) 2 (d) 1
21. 21.💡 What is the smallest unit of computer memory? (a) KB (b) byte (c) GB (d) bit
22. 22.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the memory card (b) the pen drive (c) the hard disk (d) RAM
23. 23.🔍 Which is the odd one out? (a) speaker (b) printer (c) hard disk (d) projector
24. 24.⌨️ In a word processor, what does Ctrl+V do? (a) undo (b) redo (c) paste (d) print
25. 25.True or false: to open a file means to change its name. (a) True (b) False
26. 26.True or false: Ctrl+Y is the shortcut to redo. (a) True (b) False
27. 27.📄 What does a word processor help us do? (a) water plants (b) fly a kite (c) type and edit text (d) cook food
28. 28.💾 Which one keeps data when off: RAM or storage? (a) RAM (b) storage
29. 29.🧰 Is a projector a storage, input or output device? (a) a storage device (b) an input device (c) an output device
30. 30.💾 Which is bigger: 1 GB or 1 bit? (a) 1 GB (b) 1 bit
31. 31.⌨️ In a word processor, what does Ctrl+X do? (a) copy (b) print (c) select all (d) cut
32. 32.Which of these is hardware? (a) a hard disk (b) a web browser (c) an operating system (d) a typing tutor
33. 33.Which of these is software? (a) a printer (b) a word processor (c) a monitor (d) a hard disk
34. 34.🔍 Which is the odd one out? (a) a keyboard (b) a computer game (c) a mouse (d) a hard disk
35. 35.🔍 Which is the odd one out? (a) a web browser (b) a hard disk (c) a calculator app (d) an operating system
36. 36.🔍 Which is the odd one out? (a) a web browser (b) a scanner (c) a pen drive (d) a mouse
37. 37.Which of these is software? (a) a keyboard (b) a webcam (c) a typing tutor (d) a scanner
38. 38.Which of these is a storage device? (a) projector (b) speaker (c) memory card (d) scanner
39. 39.💾 Which is smaller: 1 bit or 1 byte? (a) 1 byte (b) 1 bit
40. 40.True or false: Ctrl+S is the shortcut to redo. (a) True (b) False

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