Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 409 · 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.🔢 A bit can be only 0 or ___. (a) 1 (b) 9 (c) 2 (d) 5
2. 2.Which of these is an input device? (a) pen drive (b) speaker (c) keyboard (d) projector
3. 3.💾 How many GB are there in 2 TB?
4. 4.Which shortcut do we press to cut? (a) Ctrl+X (b) Ctrl+C (c) Ctrl+S (d) Ctrl+Z
5. 5.💾 Which is bigger: 1 byte or 1 KB? (a) 1 byte (b) 1 KB
6. 6.True or false: a pen drive is a storage device. (a) True (b) False
7. 7.📁 Which word means to “get rid of it” (for a file or folder)? (a) rename (b) copy (c) move (d) delete
8. 8.True or false: to copy a file means to store your work. (a) False (b) True
9. 9.Which file ending is a video? (a) .pdf (b) .mp4 (c) .jpg (d) .gif
10. 10.💾 Which is bigger: 1 KB or 1 TB? (a) 1 TB (b) 1 KB
11. 11.✋ Which can we touch: hardware or software? (a) software (b) hardware
12. 12.True or false: to rename a file means to make an exact twin. (a) False (b) True
13. 13.True or false: Ctrl+S is the shortcut to copy. (a) False (b) True
14. 14.💾 Which is smaller: 1 bit or 1 TB? (a) 1 bit (b) 1 TB
15. 15.Which file ending is a picture? (a) .png (b) .pdf (c) .txt (d) .mkv
16. 16.🔍 Which is the odd one out? (a) a monitor (b) a speaker (c) a webcam (d) a web browser
17. 17.🔍 Which is the odd one out? (a) hard disk (b) memory card (c) monitor (d) solid-state drive
18. 18.What does it mean to copy a file? (a) see what is inside (b) change its name (c) keep your work for later (d) make an exact twin
19. 19.📄 A file name ends in .gif. What is it most likely? (a) a document (b) a picture (c) a sound (d) a video
20. 20.Which of these is software? (a) a mouse (b) a keyboard (c) a scanner (d) an operating system
21. 21.True or false: a speaker is hardware. (a) True (b) False
22. 22.💾 How many MB are there in 1 GB?
23. 23.Which of these is true of RAM? (a) is permanent storage (b) keeps your saved files (c) loses data when off (d) keeps data when off
24. 24.What does it mean to rename a file? (a) make a brand-new one (b) store your work (c) change its name (d) put it in another place
25. 25.True or false: a scanner is an output device. (a) False (b) True
26. 26.⌨️ In a word processor, what does Ctrl+P do? (a) select all (b) cut (c) print (d) copy
27. 27.💾 How many bytes are there in 4 KB?
28. 28.⌨️ In a word processor, what does Ctrl+Y do? (a) redo (b) undo (c) print (d) paste
29. 29.True or false: a mouse is software. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) a speaker (b) a printer (c) a keyboard (d) a typing tutor
31. 31.💡 What is the smallest unit of computer memory? (a) KB (b) byte (c) GB (d) bit
32. 32.📄 A file name ends in .png. What is it most likely? (a) a sound (b) a video (c) a document (d) a picture
33. 33.💾 How many bytes are there in 2 KB?
34. 34.🧩 Is a music player app hardware or software? (a) hardware (b) software
35. 35.📂 What holds many files together, like a school bag holds books? (a) a folder (b) a mouse (c) a pixel (d) a speaker
36. 36.⌨️ In a word processor, what does Ctrl+A do? (a) paste (b) save (c) undo (d) select all
37. 37.🔍 Which is the odd one out? (a) a paint program (b) a mouse (c) a web browser (d) a word processor
38. 38.📁 Which word means to “throw it away” (for a file or folder)? (a) move (b) delete (c) create (d) open
39. 39.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the memory card (b) RAM (c) the pen drive (d) the hard disk
40. 40.📁 Which word means to “make a brand-new one” (for a file or folder)? (a) create (b) save (c) open (d) move

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