Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 267 · 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 camera keeps its photos on a small ___. (a) mouse pad (b) memory card (c) speaker (d) keyboard
2. 2.Which of these is true of RAM? (a) keeps your saved files (b) keeps photos for years (c) keeps data when off (d) is temporary memory
3. 3.Which file ending is a sound? (a) .txt (b) .mkv (c) .wav (d) .avi
4. 4.✋ Which can we touch: hardware or software? (a) software (b) hardware
5. 5.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Delete (b) Cut (c) Copy (d) Redo
6. 6.📄 A file name ends in .jpg. What is it most likely? (a) a sound (b) a video (c) a document (d) a picture
7. 7.💾 How many bytes are there in 4 KB?
8. 8.True or false: Ctrl+Z is the shortcut to undo. (a) False (b) True
9. 9.True or false: to copy a file means to see what is inside. (a) True (b) False
10. 10.What does it mean to save a file? (a) make an exact twin (b) get rid of it (c) see what is inside (d) keep your work for later
11. 11.⌨️ In a word processor, what does Ctrl+S do? (a) save (b) copy (c) cut (d) redo
12. 12.🧩 Is a webcam hardware or software? (a) software (b) hardware
13. 13.🧩 Is a music player app hardware or software? (a) software (b) hardware
14. 14.Which shortcut do we press to save? (a) Ctrl+A (b) Ctrl+C (c) Ctrl+S (d) Ctrl+Y
15. 15.✂️ You want to move a sentence to the end. What do you use first? (a) Undo (b) Cut (c) Delete (d) Print
16. 16.Which file ending is a video? (a) .pdf (b) .mp3 (c) .mp4 (d) .png
17. 17.True or false: RAM is permanent storage. (a) False (b) True
18. 18.💾 Which is bigger: 1 MB or 1 byte? (a) 1 MB (b) 1 byte
19. 19.💾 Which is smaller: 1 GB or 1 TB? (a) 1 TB (b) 1 GB
20. 20.📋 You want the same sentence in two places. What do you use first? (a) Undo (b) Delete (c) Copy (d) Backspace
21. 21.Which of these is true of RAM? (a) holds apps that are open (b) is permanent storage (c) keeps your saved files (d) keeps photos for years
22. 22.True or false: to create a file means to put it in another place. (a) False (b) True
23. 23.True or false: a music player app is hardware. (a) True (b) False
24. 24.📁 What do we call a folder inside another folder? (a) a subfolder (b) a big file (c) a printer (d) an icon
25. 25.Which shortcut do we press to copy? (a) Ctrl+C (b) Ctrl+Z (c) Ctrl+A (d) Ctrl+X
26. 26.💾 Which is bigger: 1 KB or 1 bit? (a) 1 KB (b) 1 bit
27. 27.True or false: to open a file means to see what is inside. (a) False (b) True
28. 28.🔢 A bit can be only 0 or ___. (a) 2 (b) 9 (c) 5 (d) 1
29. 29.🔍 Which is the odd one out? (a) a calculator app (b) a scanner (c) a mouse (d) a webcam
30. 30.True or false: to copy a file means to give it a new name. (a) False (b) True
31. 31.💾 Which is bigger: 1 bit or 1 GB? (a) 1 bit (b) 1 GB
32. 32.🧾 Software is a set of ___ for the computer. (a) buttons (b) instructions (c) screws (d) wires
33. 33.🔍 Which is the odd one out? (a) projector (b) printer (c) monitor (d) scanner
34. 34.💾 Which is bigger: 1 bit or 1 byte? (a) 1 bit (b) 1 byte
35. 35.True or false: Ctrl+S is the shortcut to save. (a) False (b) True
36. 36.True or false: RAM loses data when off. (a) False (b) True
37. 37.💾 Which is smaller: 1 byte or 1 GB? (a) 1 GB (b) 1 byte
38. 38.💾 Which is smaller: 1 MB or 1 bit? (a) 1 MB (b) 1 bit
39. 39.True or false: storage (like a hard disk) holds apps that are open. (a) False (b) True
40. 40.What does it mean to open a file? (a) put it in another place (b) see what is inside (c) make a brand-new one (d) make an exact twin

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