Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 809 · 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.📄 A file name ends in .mp3. What is it most likely? (a) a video (b) a picture (c) a document (d) a sound
2. 2.💾 How many MB are there in 1 GB?
3. 3.📂 What holds many files together, like a school bag holds books? (a) a folder (b) a mouse (c) a pixel (d) a speaker
4. 4.⌨️ In a word processor, what does Ctrl+V do? (a) cut (b) paste (c) select all (d) redo
5. 5.🧩 Is a web browser hardware or software? (a) hardware (b) software
6. 6.True or false: Ctrl+Y is the shortcut to redo. (a) False (b) True
7. 7.🧩 Is a webcam hardware or software? (a) software (b) hardware
8. 8.💾 Which one keeps data when off: RAM or storage? (a) RAM (b) storage
9. 9.😮 You deleted a word by mistake. What brings it back? (a) Copy (b) Cut (c) Undo (d) Save
10. 10.⌨️ In a word processor, what does Ctrl+Z do? (a) cut (b) redo (c) undo (d) select all
11. 11.✋ Which can we touch: hardware or software? (a) hardware (b) software
12. 12.🔍 Which is the odd one out? (a) a speaker (b) a music player app (c) a computer game (d) a calculator app
13. 13.Which of these is true of storage (like a hard disk)? (a) is temporary memory (b) keeps photos for years (c) is the working memory (d) loses data when off
14. 14.🔍 Which is the odd one out? (a) a music player app (b) a mouse (c) a computer game (d) a word processor
15. 15.Which of these is hardware? (a) a word processor (b) a typing tutor (c) a computer game (d) a mouse
16. 16.Which shortcut do we press to undo? (a) Ctrl+Y (b) Ctrl+Z (c) Ctrl+X (d) Ctrl+V
17. 17.💾 How many bytes are there in 3 KB?
18. 18.What does it mean to save a file? (a) throw it away (b) make a brand-new one (c) keep your work for later (d) get rid of it
19. 19.What does it mean to copy a file? (a) store your work (b) put it in another place (c) make a brand-new one (d) make an exact twin
20. 20.⚡ Which is faster for the computer to work with? (a) a printer (b) a pen drive (c) a memory card (d) RAM
21. 21.📋 You want the same sentence in two places. What do you use first? (a) Copy (b) Undo (c) Delete (d) Backspace
22. 22.Which shortcut do we press to cut? (a) Ctrl+A (b) Ctrl+P (c) Ctrl+C (d) Ctrl+X
23. 23.Which of these is hardware? (a) a computer game (b) a pen drive (c) a music player app (d) a web browser
24. 24.💾 Which is bigger: 1 MB or 1 bit? (a) 1 MB (b) 1 bit
25. 25.Which of these is true of storage (like a hard disk)? (a) keeps your saved files (b) is the working memory (c) holds apps that are open (d) is temporary memory
26. 26.True or false: to delete a file means to put it in another place. (a) True (b) False
27. 27.🧾 Software is a set of ___ for the computer. (a) instructions (b) buttons (c) wires (d) screws
28. 28.Which of these is software? (a) a word processor (b) a keyboard (c) a pen drive (d) a speaker
29. 29.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Redo (b) Delete (c) Cut (d) Copy
30. 30.💾 Which is bigger: 1 GB or 1 byte? (a) 1 byte (b) 1 GB
31. 31.Which shortcut do we press to paste? (a) Ctrl+Z (b) Ctrl+S (c) Ctrl+V (d) Ctrl+Y
32. 32.Which file ending is a document? (a) .mkv (b) .avi (c) .jpg (d) .pdf
33. 33.⌨️ In a word processor, what does Ctrl+S do? (a) select all (b) copy (c) save (d) paste
34. 34.🧰 Is a mouse a storage, input or output device? (a) an input device (b) a storage device (c) an output device
35. 35.🔍 Which is the odd one out? (a) memory card (b) microphone (c) solid-state drive (d) hard disk
36. 36.True or false: an operating system is software. (a) False (b) True
37. 37.🧩 Is a typing tutor hardware or software? (a) hardware (b) software
38. 38.💾 Which is bigger: 1 TB or 1 KB? (a) 1 TB (b) 1 KB
39. 39.Which of these is hardware? (a) an operating system (b) a printer (c) a web browser (d) a computer game
40. 40.🧩 Is an operating system hardware or software? (a) software (b) hardware

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