Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 467 · 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.💾 How many MB are there in 3 GB?
2. 2.🔍 Which is the odd one out? (a) a calculator app (b) a paint program (c) a typing tutor (d) a webcam
3. 3.📄 A file name ends in .gif. What is it most likely? (a) a sound (b) a picture (c) a video (d) a document
4. 4.💾 Which is bigger: 1 KB or 1 MB? (a) 1 KB (b) 1 MB
5. 5.📂 What holds many files together, like a school bag holds books? (a) a folder (b) a pixel (c) a speaker (d) a mouse
6. 6.Which of these is true of RAM? (a) keeps data when off (b) is the working memory (c) is permanent storage (d) keeps photos for years
7. 7.🔍 Which is the odd one out? (a) microphone (b) printer (c) projector (d) monitor
8. 8.Which file ending is a picture? (a) .mp4 (b) .mp3 (c) .avi (d) .png
9. 9.🧩 Is a typing tutor hardware or software? (a) hardware (b) software
10. 10.Which of these is true of storage (like a hard disk)? (a) is the working memory (b) keeps data when off (c) is temporary memory (d) holds apps that are open
11. 11.💾 Which is bigger: 1 byte or 1 TB? (a) 1 TB (b) 1 byte
12. 12.💾 Which is smaller: 1 TB or 1 byte? (a) 1 TB (b) 1 byte
13. 13.True or false: Ctrl+P is the shortcut to copy. (a) True (b) False
14. 14.Which of these is hardware? (a) a paint program (b) a web browser (c) a printer (d) a computer game
15. 15.⌨️ In a word processor, what does Ctrl+S do? (a) save (b) cut (c) select all (d) copy
16. 16.📋 You want the same sentence in two places. What do you use first? (a) Copy (b) Backspace (c) Undo (d) Delete
17. 17.⌨️ In a word processor, what does Ctrl+V do? (a) undo (b) select all (c) redo (d) paste
18. 18.Which of these is true of storage (like a hard disk)? (a) is temporary memory (b) holds apps that are open (c) loses data when off (d) is permanent storage
19. 19.🧰 Is a memory card a storage, input or output device? (a) a storage device (b) an input device (c) an output device
20. 20.🔍 Which is the odd one out? (a) keyboard (b) solid-state drive (c) memory card (d) pen drive
21. 21.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Cut (b) Redo (c) Delete (d) Copy
22. 22.True or false: a memory card is a storage device. (a) False (b) True
23. 23.💾 Which is smaller: 1 KB or 1 bit? (a) 1 bit (b) 1 KB
24. 24.🧾 Software is a set of ___ for the computer. (a) wires (b) screws (c) buttons (d) instructions
25. 25.Which file ending is a video? (a) .jpg (b) .mp3 (c) .txt (d) .mp4
26. 26.💾 Which is bigger: 1 TB or 1 byte? (a) 1 TB (b) 1 byte
27. 27.Which of these is a storage device? (a) keyboard (b) scanner (c) memory card (d) mouse
28. 28.✋ Which can we touch: hardware or software? (a) software (b) hardware
29. 29.🔍 Which is the odd one out? (a) a paint program (b) a web browser (c) a word processor (d) a mouse
30. 30.⌨️ In a word processor, what does Ctrl+P do? (a) copy (b) print (c) cut (d) select all
31. 31.True or false: storage (like a hard disk) is temporary memory. (a) False (b) True
32. 32.🔢 A bit can be only 0 or ___. (a) 5 (b) 1 (c) 2 (d) 9
33. 33.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the pen drive (b) RAM (c) the memory card (d) the hard disk
34. 34.💾 Which is bigger: 1 GB or 1 bit? (a) 1 GB (b) 1 bit
35. 35.True or false: storage (like a hard disk) loses data when off. (a) False (b) True
36. 36.True or false: to rename a file means to put it in another place. (a) True (b) False
37. 37.What does it mean to rename a file? (a) make a brand-new one (b) change its name (c) see what is inside (d) make an exact twin
38. 38.🔍 Which is the odd one out? (a) a printer (b) a paint program (c) a calculator app (d) a web browser
39. 39.🧩 Is a mouse hardware or software? (a) hardware (b) software
40. 40.True or false: a printer is hardware. (a) True (b) False

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