Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 382 · 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 file name ends in .jpg. What is it most likely? (a) a picture (b) a sound (c) a video (d) a document
2. 2.True or false: to copy a file means to keep your work for later. (a) False (b) True
3. 3.⌨️ In a word processor, what does Ctrl+Z do? (a) cut (b) redo (c) undo (d) copy
4. 4.💾 How many MB are there in 1 GB?
5. 5.🔍 Which is the odd one out? (a) a paint program (b) a web browser (c) a computer game (d) a webcam
6. 6.Which of these is hardware? (a) a printer (b) an operating system (c) a web browser (d) a paint program
7. 7.🔍 Which is the odd one out? (a) microphone (b) keyboard (c) scanner (d) speaker
8. 8.🧩 Is a mouse hardware or software? (a) hardware (b) software
9. 9.⌨️ In a word processor, what does Ctrl+Y do? (a) print (b) paste (c) undo (d) redo
10. 10.⌨️ In a word processor, what does Ctrl+C do? (a) select all (b) cut (c) copy (d) save
11. 11.True or false: Ctrl+X is the shortcut to print. (a) False (b) True
12. 12.💾 Which is bigger: 1 KB or 1 bit? (a) 1 bit (b) 1 KB
13. 13.True or false: Ctrl+V is the shortcut to paste. (a) False (b) True
14. 14.Which of these is hardware? (a) a computer game (b) a music player app (c) a webcam (d) a word processor
15. 15.Which of these is true of RAM? (a) keeps your saved files (b) is permanent storage (c) keeps data when off (d) is temporary memory
16. 16.True or false: a computer game is software. (a) False (b) True
17. 17.Which file ending is a document? (a) .gif (b) .mp3 (c) .mkv (d) .txt
18. 18.🔍 Which is the odd one out? (a) a paint program (b) a computer game (c) a printer (d) a music player app
19. 19.💾 Which is bigger: 1 byte or 1 GB? (a) 1 GB (b) 1 byte
20. 20.Which of these is hardware? (a) an operating system (b) a word processor (c) a music player app (d) a mouse
21. 21.Which of these is an input device? (a) projector (b) solid-state drive (c) printer (d) keyboard
22. 22.💾 How many GB are there in 2 TB?
23. 23.💾 Which one keeps photos for years: RAM or storage? (a) RAM (b) storage
24. 24.💾 How many bytes are there in 2 KB?
25. 25.💾 How many GB are there in 1 TB?
26. 26.True or false: Ctrl+X is the shortcut to redo. (a) True (b) False
27. 27.📁 What do we call a folder inside another folder? (a) an icon (b) a subfolder (c) a big file (d) a printer
28. 28.True or false: Ctrl+Y is the shortcut to redo. (a) True (b) False
29. 29.Which of these is an output device? (a) printer (b) pen drive (c) scanner (d) mouse
30. 30.🔢 A bit can be only 0 or ___. (a) 9 (b) 1 (c) 5 (d) 2
31. 31.True or false: a computer game is hardware. (a) False (b) True
32. 32.⌨️ In a word processor, what does Ctrl+V do? (a) paste (b) copy (c) print (d) cut
33. 33.True or false: a mouse is software. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) a word processor (b) a speaker (c) a printer (d) a hard disk
35. 35.Which file ending is a picture? (a) .wav (b) .png (c) .txt (d) .mkv
36. 36.💾 How many bits are there in 6 bytes?
37. 37.📁 Which word means to “keep your work for later” (for a file or folder)? (a) delete (b) rename (c) save (d) move
38. 38.📂 What holds many files together, like a school bag holds books? (a) a pixel (b) a mouse (c) a folder (d) a speaker
39. 39.True or false: to copy a file means to make an exact twin. (a) False (b) True
40. 40.Which of these is a storage device? (a) projector (b) memory card (c) microphone (d) keyboard

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