Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 861 · 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 web browser (b) a computer game (c) a printer (d) a music player app
2. 2.Which file ending is a video? (a) .png (b) .wav (c) .mp4 (d) .pdf
3. 3.⌨️ In a word processor, what does Ctrl+Z do? (a) redo (b) paste (c) copy (d) undo
4. 4.True or false: a typing tutor is hardware. (a) True (b) False
5. 5.📄 A file name ends in .png. What is it most likely? (a) a document (b) a picture (c) a video (d) a sound
6. 6.💡 What is the smallest unit of computer memory? (a) KB (b) GB (c) bit (d) byte
7. 7.Which of these is true of RAM? (a) loses data when off (b) is permanent storage (c) keeps data when off (d) keeps your saved files
8. 8.🧩 Is a monitor hardware or software? (a) hardware (b) software
9. 9.💾 Which one keeps your saved files: RAM or storage? (a) RAM (b) storage
10. 10.True or false: Ctrl+Z is the shortcut to undo. (a) False (b) True
11. 11.📄 A file name ends in .mkv. What is it most likely? (a) a video (b) a sound (c) a picture (d) a document
12. 12.✂️ You want to move a sentence to the end. What do you use first? (a) Delete (b) Print (c) Undo (d) Cut
13. 13.⌨️ In a word processor, what does Ctrl+V do? (a) copy (b) paste (c) save (d) cut
14. 14.🔢 A bit can be only 0 or ___. (a) 1 (b) 2 (c) 5 (d) 9
15. 15.🔍 Which is the odd one out? (a) speaker (b) hard disk (c) projector (d) monitor
16. 16.True or false: a keyboard is hardware. (a) False (b) True
17. 17.🧰 Is a solid-state drive a storage, input or output device? (a) a storage device (b) an output device (c) an input device
18. 18.True or false: Ctrl+V is the shortcut to redo. (a) True (b) False
19. 19.💾 Which is smaller: 1 bit or 1 GB? (a) 1 GB (b) 1 bit
20. 20.Which shortcut do we press to cut? (a) Ctrl+Z (b) Ctrl+X (c) Ctrl+A (d) Ctrl+S
21. 21.⌨️ In a word processor, what does Ctrl+P do? (a) undo (b) save (c) paste (d) print
22. 22.🔍 Which is the odd one out? (a) keyboard (b) microphone (c) pen drive (d) mouse
23. 23.💾 Which one is permanent storage: RAM or storage? (a) RAM (b) storage
24. 24.🧩 Is a music player app hardware or software? (a) hardware (b) software
25. 25.📁 Which word means to “store your work” (for a file or folder)? (a) copy (b) save (c) create (d) move
26. 26.📁 What do we call a folder inside another folder? (a) a subfolder (b) a big file (c) a printer (d) an icon
27. 27.Which of these is software? (a) a keyboard (b) a mouse (c) a webcam (d) a paint program
28. 28.Which file ending is a sound? (a) .avi (b) .pdf (c) .mp3 (d) .mkv
29. 29.Which file ending is a sound? (a) .png (b) .mp4 (c) .avi (d) .wav
30. 30.✋ Which can we touch: hardware or software? (a) software (b) hardware
31. 31.What does it mean to rename a file? (a) put it in another place (b) give it a new name (c) get rid of it (d) make an exact twin
32. 32.👩‍💻 What do we call people who write software? (a) programmers (b) farmers (c) tailors (d) plumbers
33. 33.🧰 Is a pen drive a storage, input or output device? (a) a storage device (b) an output device (c) an input device
34. 34.Which shortcut do we press to save? (a) Ctrl+S (b) Ctrl+A (c) Ctrl+Z (d) Ctrl+Y
35. 35.🔍 Which is the odd one out? (a) memory card (b) speaker (c) projector (d) monitor
36. 36.Which of these is software? (a) a speaker (b) a keyboard (c) a printer (d) a web browser
37. 37.⚡ Which is faster for the computer to work with? (a) RAM (b) a memory card (c) a printer (d) a pen drive
38. 38.Which of these is an input device? (a) solid-state drive (b) projector (c) printer (d) mouse
39. 39.🧩 Is a calculator app hardware or software? (a) software (b) hardware
40. 40.Which shortcut do we press to undo? (a) Ctrl+Z (b) Ctrl+V (c) Ctrl+X (d) Ctrl+A

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