Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 442 · 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.True or false: to delete a file means to give it a new name. (a) False (b) True
2. 2.📄 What does a word processor help us do? (a) fly a kite (b) water plants (c) cook food (d) type and edit text
3. 3.True or false: a keyboard is hardware. (a) False (b) True
4. 4.Which file ending is a document? (a) .avi (b) .wav (c) .pdf (d) .jpg
5. 5.Which file ending is a picture? (a) .mp3 (b) .txt (c) .png (d) .avi
6. 6.Which shortcut do we press to print? (a) Ctrl+Z (b) Ctrl+Y (c) Ctrl+P (d) Ctrl+A
7. 7.True or false: Ctrl+A is the shortcut to undo. (a) False (b) True
8. 8.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Copy (b) Delete (c) Cut (d) Redo
9. 9.True or false: Ctrl+P is the shortcut to select all. (a) True (b) False
10. 10.💾 Which is smaller: 1 byte or 1 MB? (a) 1 byte (b) 1 MB
11. 11.True or false: Ctrl+Y is the shortcut to redo. (a) True (b) False
12. 12.Which of these is true of storage (like a hard disk)? (a) keeps data when off (b) holds apps that are open (c) loses data when off (d) is temporary memory
13. 13.🧩 Is a calculator app hardware or software? (a) hardware (b) software
14. 14.🧩 Is a typing tutor hardware or software? (a) software (b) hardware
15. 15.😮 You deleted a word by mistake. What brings it back? (a) Save (b) Undo (c) Cut (d) Copy
16. 16.🧩 Is a hard disk hardware or software? (a) hardware (b) software
17. 17.💾 Which is smaller: 1 TB or 1 bit? (a) 1 TB (b) 1 bit
18. 18.True or false: Ctrl+A is the shortcut to paste. (a) False (b) True
19. 19.💾 How many MB are there in 1 GB?
20. 20.🔍 Which is the odd one out? (a) a mouse (b) a calculator app (c) a paint program (d) a music player app
21. 21.💡 What is the smallest unit of computer memory? (a) KB (b) byte (c) bit (d) GB
22. 22.💾 Which is bigger: 1 bit or 1 KB? (a) 1 bit (b) 1 KB
23. 23.Which file ending is a video? (a) .wav (b) .mkv (c) .txt (d) .png
24. 24.🧩 Is a scanner hardware or software? (a) hardware (b) software
25. 25.True or false: to save a file means to change its name. (a) True (b) False
26. 26.True or false: storage (like a hard disk) keeps photos for years. (a) False (b) True
27. 27.True or false: to copy a file means to make an exact twin. (a) False (b) True
28. 28.⌨️ In a word processor, what does Ctrl+X do? (a) paste (b) cut (c) select all (d) copy
29. 29.💾 Which is bigger: 1 GB or 1 bit? (a) 1 GB (b) 1 bit
30. 30.💾 Which is bigger: 1 KB or 1 GB? (a) 1 GB (b) 1 KB
31. 31.📁 Which word means to “make a brand-new one” (for a file or folder)? (a) rename (b) create (c) copy (d) save
32. 32.✂️ You want to move a sentence to the end. What do you use first? (a) Print (b) Cut (c) Undo (d) Delete
33. 33.💾 Which is bigger: 1 MB or 1 KB? (a) 1 MB (b) 1 KB
34. 34.True or false: a hard disk is hardware. (a) True (b) False
35. 35.📄 A file name ends in .mp4. What is it most likely? (a) a sound (b) a picture (c) a document (d) a video
36. 36.📁 Which word means to “change its name” (for a file or folder)? (a) create (b) delete (c) copy (d) rename
37. 37.Which shortcut do we press to undo? (a) Ctrl+V (b) Ctrl+Z (c) Ctrl+S (d) Ctrl+A
38. 38.🔍 Which is the odd one out? (a) keyboard (b) speaker (c) monitor (d) printer
39. 39.Which file ending is a picture? (a) .wav (b) .txt (c) .jpg (d) .pdf
40. 40.👩‍💻 What do we call people who write software? (a) farmers (b) programmers (c) plumbers (d) tailors

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