Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 76 · 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.🖍️ Before we cut or copy text, we must first ___ it. (a) save (b) select (c) delete (d) print
2. 2.💾 Which is smaller: 1 GB or 1 bit? (a) 1 GB (b) 1 bit
3. 3.📂 What holds many files together, like a school bag holds books? (a) a folder (b) a pixel (c) a mouse (d) a speaker
4. 4.💡 What is the smallest unit of computer memory? (a) KB (b) bit (c) byte (d) GB
5. 5.📄 A file name ends in .pdf. What is it most likely? (a) a sound (b) a document (c) a video (d) a picture
6. 6.True or false: Ctrl+Y is the shortcut to save. (a) True (b) False
7. 7.What does it mean to copy a file? (a) give it a new name (b) get rid of it (c) make an exact twin (d) throw it away
8. 8.😮 You deleted a word by mistake. What brings it back? (a) Copy (b) Save (c) Undo (d) Cut
9. 9.💾 How many GB are there in 1 TB?
10. 10.True or false: storage (like a hard disk) loses data when off. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) scanner (b) mouse (c) microphone (d) memory card
12. 12.⌨️ In a word processor, what does Ctrl+Z do? (a) select all (b) redo (c) undo (d) cut
13. 13.🔍 Which is the odd one out? (a) scanner (b) microphone (c) mouse (d) monitor
14. 14.What does it mean to save a file? (a) throw it away (b) give it a new name (c) make an exact twin (d) store your work
15. 15.Which of these is hardware? (a) a typing tutor (b) a computer game (c) a scanner (d) an operating system
16. 16.💾 Which is bigger: 1 TB or 1 KB? (a) 1 KB (b) 1 TB
17. 17.True or false: to open a file means to get rid of it. (a) False (b) True
18. 18.💾 Which is smaller: 1 byte or 1 GB? (a) 1 GB (b) 1 byte
19. 19.Which shortcut do we press to paste? (a) Ctrl+S (b) Ctrl+A (c) Ctrl+V (d) Ctrl+X
20. 20.🔢 A bit can be only 0 or ___. (a) 5 (b) 2 (c) 9 (d) 1
21. 21.Which of these is true of RAM? (a) loses data when off (b) is permanent storage (c) keeps data when off (d) keeps your saved files
22. 22.True or false: RAM keeps photos for years. (a) False (b) True
23. 23.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Delete (b) Copy (c) Redo (d) Cut
24. 24.💾 Which is bigger: 1 byte or 1 KB? (a) 1 KB (b) 1 byte
25. 25.Which file ending is a video? (a) .png (b) .txt (c) .jpg (d) .mkv
26. 26.True or false: Ctrl+Z is the shortcut to undo. (a) True (b) False
27. 27.Which of these is hardware? (a) a web browser (b) a webcam (c) a calculator app (d) a computer game
28. 28.Which file ending is a document? (a) .gif (b) .wav (c) .mkv (d) .pdf
29. 29.💾 Which is smaller: 1 TB or 1 bit? (a) 1 TB (b) 1 bit
30. 30.True or false: Ctrl+P is the shortcut to copy. (a) True (b) False
31. 31.🧰 Is a memory card a storage, input or output device? (a) an input device (b) a storage device (c) an output device
32. 32.Which of these is true of RAM? (a) is permanent storage (b) keeps your saved files (c) keeps data when off (d) is the working memory
33. 33.⌨️ In a word processor, what does Ctrl+S do? (a) save (b) paste (c) redo (d) print
34. 34.💾 Which is bigger: 1 KB or 1 byte? (a) 1 KB (b) 1 byte
35. 35.📁 Which word means to “make an exact twin” (for a file or folder)? (a) move (b) save (c) open (d) copy
36. 36.🧩 Is a mouse hardware or software? (a) hardware (b) software
37. 37.True or false: a music player app is software. (a) True (b) False
38. 38.💾 Which is bigger: 1 GB or 1 byte? (a) 1 GB (b) 1 byte
39. 39.Which of these is an output device? (a) memory card (b) hard disk (c) mouse (d) printer
40. 40.🧰 Is a scanner a storage, input or output device? (a) an output device (b) an input device (c) a storage device

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