Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 19 · 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: a music player app is software. (a) True (b) False
2. 2.💾 How many KB are there in 2 MB?
3. 3.True or false: to delete a file means to make an exact twin. (a) False (b) True
4. 4.💾 Which is smaller: 1 GB or 1 bit? (a) 1 bit (b) 1 GB
5. 5.🔍 Which is the odd one out? (a) a paint program (b) a monitor (c) a webcam (d) a scanner
6. 6.💾 Which is bigger: 1 TB or 1 byte? (a) 1 byte (b) 1 TB
7. 7.📄 A file name ends in .mp4. What is it most likely? (a) a picture (b) a video (c) a document (d) a sound
8. 8.Which shortcut do we press to print? (a) Ctrl+P (b) Ctrl+X (c) Ctrl+A (d) Ctrl+V
9. 9.Which shortcut do we press to redo? (a) Ctrl+Y (b) Ctrl+P (c) Ctrl+Z (d) Ctrl+S
10. 10.📷 A camera keeps its photos on a small ___. (a) mouse pad (b) speaker (c) keyboard (d) memory card
11. 11.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Cut (b) Copy (c) Delete (d) Redo
12. 12.📄 A file name ends in .pdf. What is it most likely? (a) a document (b) a sound (c) a picture (d) a video
13. 13.🔢 A bit can be only 0 or ___. (a) 5 (b) 9 (c) 2 (d) 1
14. 14.🔍 Which is the odd one out? (a) memory card (b) speaker (c) printer (d) projector
15. 15.🔍 Which is the odd one out? (a) monitor (b) pen drive (c) memory card (d) solid-state drive
16. 16.Which of these is true of storage (like a hard disk)? (a) is temporary memory (b) loses data when off (c) is the working memory (d) is permanent storage
17. 17.Which of these is hardware? (a) a paint program (b) a mouse (c) a calculator app (d) a word processor
18. 18.💾 How many bytes are there in 2 KB?
19. 19.💾 How many bytes are there in 4 KB?
20. 20.💾 Which is smaller: 1 bit or 1 byte? (a) 1 bit (b) 1 byte
21. 21.💾 Which is smaller: 1 GB or 1 byte? (a) 1 byte (b) 1 GB
22. 22.💾 Which one is the working memory: RAM or storage? (a) storage (b) RAM
23. 23.📄 A file name ends in .mkv. What is it most likely? (a) a document (b) a picture (c) a video (d) a sound
24. 24.Which of these is hardware? (a) a paint program (b) a calculator app (c) a music player app (d) a webcam
25. 25.Which shortcut do we press to copy? (a) Ctrl+Y (b) Ctrl+V (c) Ctrl+X (d) Ctrl+C
26. 26.💡 What is the smallest unit of computer memory? (a) byte (b) bit (c) KB (d) GB
27. 27.🧰 Is a hard disk a storage, input or output device? (a) an input device (b) an output device (c) a storage device
28. 28.Which file ending is a video? (a) .mp4 (b) .mp3 (c) .txt (d) .png
29. 29.Which of these is software? (a) a keyboard (b) a word processor (c) a monitor (d) a printer
30. 30.💾 Which one keeps photos for years: RAM or storage? (a) storage (b) RAM
31. 31.💾 Which is bigger: 1 byte or 1 GB? (a) 1 GB (b) 1 byte
32. 32.True or false: an operating system is hardware. (a) False (b) True
33. 33.⌨️ In a word processor, what does Ctrl+X do? (a) save (b) redo (c) paste (d) cut
34. 34.💾 Which is bigger: 1 bit or 1 KB? (a) 1 bit (b) 1 KB
35. 35.⌨️ In a word processor, what does Ctrl+V do? (a) save (b) select all (c) redo (d) paste
36. 36.✋ Which can we touch: hardware or software? (a) software (b) hardware
37. 37.📋 You want the same sentence in two places. What do you use first? (a) Delete (b) Undo (c) Backspace (d) Copy
38. 38.📁 Which word means to “change its name” (for a file or folder)? (a) copy (b) rename (c) delete (d) save
39. 39.⌨️ In a word processor, what does Ctrl+S do? (a) redo (b) save (c) select all (d) paste
40. 40.📁 Which word means to “give it a new name” (for a file or folder)? (a) save (b) rename (c) create (d) move

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