Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 167 · 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 smaller: 1 TB or 1 MB? (a) 1 TB (b) 1 MB
2. 2.True or false: Ctrl+P is the shortcut to print. (a) True (b) False
3. 3.True or false: Ctrl+Z is the shortcut to undo. (a) False (b) True
4. 4.💾 Which is smaller: 1 bit or 1 KB? (a) 1 KB (b) 1 bit
5. 5.🧩 Is a speaker hardware or software? (a) hardware (b) software
6. 6.True or false: storage (like a hard disk) is the working memory. (a) False (b) True
7. 7.💾 Which is bigger: 1 bit or 1 byte? (a) 1 bit (b) 1 byte
8. 8.⌨️ In a word processor, what does Ctrl+P do? (a) print (b) select all (c) save (d) paste
9. 9.💾 How many bytes are there in 1 KB?
10. 10.💾 Which is smaller: 1 bit or 1 MB? (a) 1 bit (b) 1 MB
11. 11.🔢 A bit can be only 0 or ___. (a) 5 (b) 1 (c) 2 (d) 9
12. 12.True or false: a hard disk is hardware. (a) True (b) False
13. 13.Which shortcut do we press to select all? (a) Ctrl+Y (b) Ctrl+C (c) Ctrl+A (d) Ctrl+S
14. 14.Which of these is software? (a) a hard disk (b) a printer (c) a calculator app (d) a keyboard
15. 15.🧾 Software is a set of ___ for the computer. (a) wires (b) instructions (c) screws (d) buttons
16. 16.🧩 Is a computer game hardware or software? (a) hardware (b) software
17. 17.Which of these is hardware? (a) a word processor (b) a typing tutor (c) a keyboard (d) a paint program
18. 18.Which shortcut do we press to paste? (a) Ctrl+A (b) Ctrl+V (c) Ctrl+Z (d) Ctrl+X
19. 19.💡 What is the smallest unit of computer memory? (a) byte (b) bit (c) KB (d) GB
20. 20.💾 Which is bigger: 1 KB or 1 TB? (a) 1 KB (b) 1 TB
21. 21.True or false: Ctrl+A is the shortcut to paste. (a) False (b) True
22. 22.Which of these is a storage device? (a) mouse (b) pen drive (c) projector (d) scanner
23. 23.📁 Which word means to “see what is inside” (for a file or folder)? (a) save (b) rename (c) delete (d) open
24. 24.⌨️ In a word processor, what does Ctrl+A do? (a) select all (b) cut (c) save (d) paste
25. 25.💾 How many bytes are there in 3 KB?
26. 26.True or false: to delete a file means to throw it away. (a) False (b) True
27. 27.⌨️ In a word processor, what does Ctrl+X do? (a) save (b) select all (c) copy (d) cut
28. 28.Which of these is true of storage (like a hard disk)? (a) keeps photos for years (b) holds apps that are open (c) is the working memory (d) loses data when off
29. 29.💾 Which is bigger: 1 byte or 1 bit? (a) 1 byte (b) 1 bit
30. 30.What does it mean to move a file? (a) make a brand-new one (b) get rid of it (c) put it in another place (d) make an exact twin
31. 31.💾 Which is smaller: 1 MB or 1 bit? (a) 1 MB (b) 1 bit
32. 32.✋ Which can we touch: hardware or software? (a) software (b) hardware
33. 33.What does it mean to delete a file? (a) get rid of it (b) give it a new name (c) put it in another place (d) make a brand-new one
34. 34.📄 A file name ends in .mp3. What is it most likely? (a) a document (b) a video (c) a picture (d) a sound
35. 35.🔍 Which is the odd one out? (a) a calculator app (b) a keyboard (c) a web browser (d) a word processor
36. 36.✂️ You want to move a sentence to the end. What do you use first? (a) Print (b) Cut (c) Undo (d) Delete
37. 37.Which file ending is a document? (a) .gif (b) .txt (c) .mkv (d) .wav
38. 38.Which shortcut do we press to copy? (a) Ctrl+C (b) Ctrl+A (c) Ctrl+X (d) Ctrl+P
39. 39.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Delete (b) Redo (c) Copy (d) Cut
40. 40.🔍 Which is the odd one out? (a) a music player app (b) a mouse (c) a word processor (d) a paint program

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