Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 724 · 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.🔍 Which is the odd one out? (a) a pen drive (b) a printer (c) a mouse (d) a computer game
2. 2.✂️ You want to move a sentence to the end. What do you use first? (a) Undo (b) Cut (c) Delete (d) Print
3. 3.🔢 A bit can be only 0 or ___. (a) 1 (b) 5 (c) 2 (d) 9
4. 4.👩‍💻 What do we call people who write software? (a) plumbers (b) programmers (c) tailors (d) farmers
5. 5.💾 Which is smaller: 1 TB or 1 KB? (a) 1 KB (b) 1 TB
6. 6.True or false: Ctrl+X is the shortcut to undo. (a) True (b) False
7. 7.True or false: a microphone is an output device. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) a calculator app (b) a monitor (c) a mouse (d) a pen drive
9. 9.📄 A file name ends in .png. What is it most likely? (a) a picture (b) a sound (c) a document (d) a video
10. 10.True or false: Ctrl+Z is the shortcut to undo. (a) False (b) True
11. 11.💾 Which is bigger: 1 bit or 1 KB? (a) 1 KB (b) 1 bit
12. 12.📁 Which word means to “make an exact twin” (for a file or folder)? (a) save (b) create (c) rename (d) copy
13. 13.Which of these is software? (a) a speaker (b) a mouse (c) a word processor (d) a hard disk
14. 14.What does it mean to rename a file? (a) put it in another place (b) change its name (c) throw it away (d) make an exact twin
15. 15.🔍 Which is the odd one out? (a) a word processor (b) a computer game (c) a calculator app (d) a hard disk
16. 16.🧩 Is a speaker hardware or software? (a) software (b) hardware
17. 17.✋ Which can we touch: hardware or software? (a) hardware (b) software
18. 18.Which file ending is a sound? (a) .mp3 (b) .avi (c) .jpg (d) .png
19. 19.True or false: storage (like a hard disk) keeps photos for years. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) a keyboard (b) a word processor (c) a typing tutor (d) a calculator app
21. 21.True or false: a printer is software. (a) True (b) False
22. 22.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the hard disk (b) RAM (c) the memory card (d) the pen drive
23. 23.🧩 Is a hard disk hardware or software? (a) software (b) hardware
24. 24.⌨️ In a word processor, what does Ctrl+Z do? (a) redo (b) undo (c) cut (d) select all
25. 25.🧩 Is a scanner hardware or software? (a) hardware (b) software
26. 26.True or false: a web browser is hardware. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) scanner (b) microphone (c) memory card (d) keyboard
28. 28.💾 Which is bigger: 1 byte or 1 KB? (a) 1 KB (b) 1 byte
29. 29.😮 You deleted a word by mistake. What brings it back? (a) Undo (b) Cut (c) Save (d) Copy
30. 30.🧩 Is a calculator app hardware or software? (a) software (b) hardware
31. 31.🧩 Is a mouse hardware or software? (a) software (b) hardware
32. 32.Which shortcut do we press to redo? (a) Ctrl+Y (b) Ctrl+Z (c) Ctrl+A (d) Ctrl+V
33. 33.True or false: Ctrl+P is the shortcut to copy. (a) True (b) False
34. 34.True or false: RAM keeps data when off. (a) False (b) True
35. 35.True or false: a music player app is hardware. (a) True (b) False
36. 36.True or false: a projector is an output device. (a) False (b) True
37. 37.💾 Which is bigger: 1 GB or 1 MB? (a) 1 GB (b) 1 MB
38. 38.🔍 Which is the odd one out? (a) a web browser (b) a calculator app (c) a webcam (d) a word processor
39. 39.☁️ Saving files on the internet to use from anywhere is called ___. (a) cloud storage (b) rain storage (c) paper storage (d) box storage
40. 40.True or false: a keyboard is software. (a) False (b) True

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