Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 54 · 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.⌨️ In a word processor, what does Ctrl+V do? (a) redo (b) save (c) paste (d) undo
2. 2.What does it mean to save a file? (a) store your work (b) make an exact twin (c) give it a new name (d) change its name
3. 3.Which file ending is a sound? (a) .jpg (b) .mp3 (c) .avi (d) .mkv
4. 4.💾 Which is smaller: 1 MB or 1 byte? (a) 1 MB (b) 1 byte
5. 5.📁 Which word means to “make a brand-new one” (for a file or folder)? (a) create (b) open (c) rename (d) save
6. 6.✂️ You want to move a sentence to the end. What do you use first? (a) Print (b) Undo (c) Cut (d) Delete
7. 7.True or false: RAM holds apps that are open. (a) False (b) True
8. 8.True or false: a music player app is software. (a) False (b) True
9. 9.Which of these is software? (a) a printer (b) a webcam (c) a music player app (d) a scanner
10. 10.True or false: a mouse is hardware. (a) True (b) False
11. 11.Which of these is hardware? (a) a computer game (b) an operating system (c) a mouse (d) a calculator app
12. 12.💾 Which is smaller: 1 byte or 1 KB? (a) 1 byte (b) 1 KB
13. 13.💾 Which is bigger: 1 byte or 1 GB? (a) 1 byte (b) 1 GB
14. 14.True or false: a printer is hardware. (a) False (b) True
15. 15.True or false: to save a file means to make an exact twin. (a) True (b) False
16. 16.What does it mean to delete a file? (a) see what is inside (b) get rid of it (c) store your work (d) put it in another place
17. 17.True or false: a scanner is an output device. (a) False (b) True
18. 18.Which shortcut do we press to select all? (a) Ctrl+Y (b) Ctrl+A (c) Ctrl+C (d) Ctrl+X
19. 19.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+U (b) Ctrl+I (c) Ctrl+B (d) Ctrl+F
20. 20.✋ Which can we touch: hardware or software? (a) software (b) hardware
21. 21.What does it mean to move a file? (a) get rid of it (b) put it in another place (c) give it a new name (d) make an exact twin
22. 22.💡 What is the smallest unit of computer memory? (a) byte (b) KB (c) bit (d) GB
23. 23.💾 Which is smaller: 1 bit or 1 MB? (a) 1 MB (b) 1 bit
24. 24.💾 Which is bigger: 1 MB or 1 GB? (a) 1 GB (b) 1 MB
25. 25.💾 Which is bigger: 1 GB or 1 MB? (a) 1 MB (b) 1 GB
26. 26.What does it mean to create a file? (a) make a brand-new one (b) make an exact twin (c) store your work (d) see what is inside
27. 27.True or false: Ctrl+C is the shortcut to copy. (a) False (b) True
28. 28.🧾 Software is a set of ___ for the computer. (a) buttons (b) wires (c) screws (d) instructions
29. 29.💾 Which is smaller: 1 TB or 1 GB? (a) 1 TB (b) 1 GB
30. 30.Which shortcut do we press to print? (a) Ctrl+A (b) Ctrl+P (c) Ctrl+C (d) Ctrl+X
31. 31.True or false: to save a file means to keep your work for later. (a) False (b) True
32. 32.True or false: storage (like a hard disk) is the working memory. (a) True (b) False
33. 33.💾 How many bytes are there in 2 KB?
34. 34.📁 What do we call a folder inside another folder? (a) a big file (b) an icon (c) a printer (d) a subfolder
35. 35.Which of these is software? (a) an operating system (b) a webcam (c) a scanner (d) a speaker
36. 36.Which file ending is a sound? (a) .png (b) .wav (c) .mp4 (d) .gif
37. 37.📄 A file name ends in .png. What is it most likely? (a) a picture (b) a sound (c) a document (d) a video
38. 38.📁 Which word means to “keep your work for later” (for a file or folder)? (a) create (b) save (c) copy (d) delete
39. 39.🧩 Is a paint program hardware or software? (a) hardware (b) software
40. 40.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Delete (b) Cut (c) Redo (d) Copy

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