Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 740 · 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 bigger: 1 bit or 1 byte? (a) 1 byte (b) 1 bit
2. 2.Which of these is a storage device? (a) speaker (b) hard disk (c) mouse (d) microphone
3. 3.True or false: storage (like a hard disk) keeps photos for years. (a) False (b) True
4. 4.🔍 Which is the odd one out? (a) a calculator app (b) a word processor (c) a typing tutor (d) a mouse
5. 5.Which shortcut do we press to redo? (a) Ctrl+C (b) Ctrl+Y (c) Ctrl+S (d) Ctrl+V
6. 6.📁 Which word means to “keep your work for later” (for a file or folder)? (a) save (b) move (c) create (d) delete
7. 7.Which of these is a storage device? (a) projector (b) mouse (c) printer (d) solid-state drive
8. 8.Which shortcut do we press to save? (a) Ctrl+Y (b) Ctrl+P (c) Ctrl+S (d) Ctrl+A
9. 9.💾 Which is smaller: 1 bit or 1 MB? (a) 1 bit (b) 1 MB
10. 10.💾 How many MB are there in 1 GB?
11. 11.True or false: to delete a file means to get rid of it. (a) False (b) True
12. 12.🔢 A bit can be only 0 or ___. (a) 1 (b) 2 (c) 5 (d) 9
13. 13.True or false: a mouse is hardware. (a) True (b) False
14. 14.Which file ending is a video? (a) .mp4 (b) .gif (c) .mp3 (d) .pdf
15. 15.Which of these is software? (a) a speaker (b) a monitor (c) a keyboard (d) a computer game
16. 16.Which file ending is a picture? (a) .pdf (b) .png (c) .mp4 (d) .txt
17. 17.🔍 Which is the odd one out? (a) a mouse (b) a printer (c) a hard disk (d) a word processor
18. 18.📄 A file name ends in .gif. What is it most likely? (a) a picture (b) a sound (c) a video (d) a document
19. 19.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the pen drive (b) the hard disk (c) the memory card (d) RAM
20. 20.What does it mean to delete a file? (a) throw it away (b) make an exact twin (c) make a brand-new one (d) put it in another place
21. 21.True or false: storage (like a hard disk) is temporary memory. (a) True (b) False
22. 22.💡 What is the smallest unit of computer memory? (a) GB (b) KB (c) byte (d) bit
23. 23.💾 Which is bigger: 1 bit or 1 MB? (a) 1 bit (b) 1 MB
24. 24.True or false: a typing tutor is hardware. (a) False (b) True
25. 25.🧩 Is a scanner hardware or software? (a) software (b) hardware
26. 26.📁 Which word means to “change its name” (for a file or folder)? (a) copy (b) save (c) rename (d) delete
27. 27.🧾 Software is a set of ___ for the computer. (a) instructions (b) buttons (c) screws (d) wires
28. 28.✂️ You want to move a sentence to the end. What do you use first? (a) Print (b) Delete (c) Undo (d) Cut
29. 29.⌨️ In a word processor, what does Ctrl+Z do? (a) cut (b) select all (c) undo (d) paste
30. 30.True or false: to rename a file means to change its name. (a) True (b) False
31. 31.🧩 Is a mouse hardware or software? (a) hardware (b) software
32. 32.▌ What is the blinking line that shows where you will type? (a) the folder (b) the cursor (c) the toolbar (d) the icon
33. 33.Which file ending is a video? (a) .avi (b) .wav (c) .mp3 (d) .txt
34. 34.True or false: a memory card is an input device. (a) True (b) False
35. 35.True or false: Ctrl+S is the shortcut to undo. (a) False (b) True
36. 36.Which of these is true of RAM? (a) keeps photos for years (b) is permanent storage (c) keeps your saved files (d) is temporary memory
37. 37.🔍 Which is the odd one out? (a) pen drive (b) memory card (c) hard disk (d) microphone
38. 38.💾 Which is bigger: 1 KB or 1 MB? (a) 1 KB (b) 1 MB
39. 39.True or false: Ctrl+S is the shortcut to save. (a) True (b) False
40. 40.True or false: a paint program is hardware. (a) False (b) True

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