Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 596 · 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 pen drive is a storage device. (a) True (b) False
2. 2.🧩 Is a scanner hardware or software? (a) software (b) hardware
3. 3.💾 How many KB are there in 2 MB?
4. 4.⌨️ In a word processor, what does Ctrl+Y do? (a) select all (b) print (c) undo (d) redo
5. 5.⌨️ In a word processor, what does Ctrl+C do? (a) cut (b) redo (c) copy (d) save
6. 6.True or false: to save a file means to give it a new name. (a) False (b) True
7. 7.👩‍💻 What do we call people who write software? (a) programmers (b) plumbers (c) tailors (d) farmers
8. 8.True or false: Ctrl+Y is the shortcut to redo. (a) False (b) True
9. 9.Which of these is hardware? (a) a computer game (b) a keyboard (c) a word processor (d) a music player app
10. 10.True or false: a printer is hardware. (a) True (b) False
11. 11.Which file ending is a sound? (a) .jpg (b) .png (c) .wav (d) .pdf
12. 12.📄 A file name ends in .pdf. What is it most likely? (a) a sound (b) a picture (c) a document (d) a video
13. 13.💾 How many GB are there in 1 TB?
14. 14.True or false: Ctrl+Z is the shortcut to undo. (a) False (b) True
15. 15.🧩 Is a pen drive hardware or software? (a) software (b) hardware
16. 16.🔍 Which is the odd one out? (a) pen drive (b) scanner (c) hard disk (d) solid-state drive
17. 17.💾 How many bits are there in 6 bytes?
18. 18.🔢 A bit can be only 0 or ___. (a) 9 (b) 1 (c) 2 (d) 5
19. 19.True or false: Ctrl+C is the shortcut to paste. (a) True (b) False
20. 20.💾 How many MB are there in 1 GB?
21. 21.🔍 Which is the odd one out? (a) monitor (b) projector (c) memory card (d) speaker
22. 22.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+I (b) Ctrl+U (c) Ctrl+B (d) Ctrl+F
23. 23.What does it mean to delete a file? (a) put it in another place (b) make an exact twin (c) throw it away (d) see what is inside
24. 24.📋 You want the same sentence in two places. What do you use first? (a) Delete (b) Copy (c) Undo (d) Backspace
25. 25.True or false: a webcam is hardware. (a) True (b) False
26. 26.💾 Which one keeps data when off: RAM or storage? (a) RAM (b) storage
27. 27.💾 Which is smaller: 1 MB or 1 KB? (a) 1 MB (b) 1 KB
28. 28.True or false: a keyboard is hardware. (a) True (b) False
29. 29.True or false: a memory card is a storage device. (a) False (b) True
30. 30.True or false: a hard disk is an input device. (a) True (b) False
31. 31.⌨️ In a word processor, what does Ctrl+X do? (a) cut (b) undo (c) print (d) copy
32. 32.Which of these is true of RAM? (a) keeps your saved files (b) keeps photos for years (c) keeps data when off (d) is the working memory
33. 33.💾 Which one loses data when off: RAM or storage? (a) storage (b) RAM
34. 34.🔍 Which is the odd one out? (a) a word processor (b) a music player app (c) a scanner (d) an operating system
35. 35.🔍 Which is the odd one out? (a) a computer game (b) a word processor (c) a monitor (d) a paint program
36. 36.True or false: to open a file means to make a brand-new one. (a) False (b) True
37. 37.Which of these is true of RAM? (a) keeps data when off (b) keeps photos for years (c) keeps your saved files (d) holds apps that are open
38. 38.⌨️ In a word processor, what does Ctrl+S do? (a) paste (b) cut (c) undo (d) save
39. 39.Which file ending is a picture? (a) .png (b) .pdf (c) .mp3 (d) .mkv
40. 40.💾 How many bytes are there in 4 KB?

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