Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 897 · 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.🔍 Which is the odd one out? (a) microphone (b) keyboard (c) scanner (d) hard disk
2. 2.True or false: Ctrl+C is the shortcut to save. (a) True (b) False
3. 3.✋ Which can we touch: hardware or software? (a) software (b) hardware
4. 4.🧩 Is a scanner hardware or software? (a) hardware (b) software
5. 5.💾 Which one loses data when off: RAM or storage? (a) storage (b) RAM
6. 6.Which of these is an output device? (a) pen drive (b) hard disk (c) speaker (d) memory card
7. 7.🧩 Is a keyboard hardware or software? (a) hardware (b) software
8. 8.True or false: a scanner is an input device. (a) False (b) True
9. 9.True or false: RAM holds apps that are open. (a) True (b) False
10. 10.💾 Which is bigger: 1 byte or 1 TB? (a) 1 TB (b) 1 byte
11. 11.What does it mean to move a file? (a) put it in another place (b) keep your work for later (c) store your work (d) throw it away
12. 12.True or false: Ctrl+Z is the shortcut to undo. (a) True (b) False
13. 13.Which of these is true of storage (like a hard disk)? (a) keeps data when off (b) is the working memory (c) is temporary memory (d) loses data when off
14. 14.💾 Which is bigger: 1 bit or 1 byte? (a) 1 byte (b) 1 bit
15. 15.What does it mean to copy a file? (a) make an exact twin (b) change its name (c) throw it away (d) get rid of it
16. 16.📷 A camera keeps its photos on a small ___. (a) mouse pad (b) keyboard (c) memory card (d) speaker
17. 17.💾 How many MB are there in 3 GB?
18. 18.True or false: storage (like a hard disk) keeps data when off. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) pen drive (b) memory card (c) mouse (d) solid-state drive
20. 20.True or false: a speaker is an output device. (a) False (b) True
21. 21.True or false: storage (like a hard disk) loses data when off. (a) False (b) True
22. 22.True or false: Ctrl+S is the shortcut to select all. (a) False (b) True
23. 23.💾 Which one is permanent storage: RAM or storage? (a) RAM (b) storage
24. 24.Which of these is hardware? (a) a computer game (b) a hard disk (c) an operating system (d) a word processor
25. 25.🧾 Software is a set of ___ for the computer. (a) screws (b) instructions (c) wires (d) buttons
26. 26.🔍 Which is the odd one out? (a) keyboard (b) scanner (c) printer (d) mouse
27. 27.Which of these is true of RAM? (a) loses data when off (b) is permanent storage (c) keeps photos for years (d) keeps data when off
28. 28.Which file ending is a sound? (a) .gif (b) .wav (c) .avi (d) .mp4
29. 29.💾 Which is bigger: 1 GB or 1 byte? (a) 1 GB (b) 1 byte
30. 30.💾 Which is smaller: 1 byte or 1 GB? (a) 1 byte (b) 1 GB
31. 31.Which shortcut do we press to cut? (a) Ctrl+S (b) Ctrl+X (c) Ctrl+P (d) Ctrl+C
32. 32.True or false: Ctrl+P is the shortcut to copy. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) a webcam (b) a speaker (c) a music player app (d) a printer
34. 34.True or false: Ctrl+Z is the shortcut to select all. (a) True (b) False
35. 35.True or false: a music player app is software. (a) True (b) False
36. 36.True or false: a projector is a storage device. (a) True (b) False
37. 37.Which shortcut do we press to paste? (a) Ctrl+Z (b) Ctrl+P (c) Ctrl+C (d) Ctrl+V
38. 38.🧩 Is a monitor hardware or software? (a) hardware (b) software
39. 39.📁 What do we call a folder inside another folder? (a) a printer (b) a subfolder (c) an icon (d) a big file
40. 40.🔢 A bit can be only 0 or ___. (a) 9 (b) 5 (c) 1 (d) 2

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