Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 845 · 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) a keyboard (b) a pen drive (c) a web browser (d) a monitor
2. 2.True or false: a music player app is hardware. (a) True (b) False
3. 3.What does it mean to save a file? (a) make a brand-new one (b) keep your work for later (c) give it a new name (d) change its name
4. 4.💾 How many MB are there in 2 GB?
5. 5.🔢 A bit can be only 0 or ___. (a) 2 (b) 1 (c) 9 (d) 5
6. 6.💾 How many GB are there in 1 TB?
7. 7.Which file ending is a video? (a) .mp3 (b) .wav (c) .txt (d) .mkv
8. 8.📄 A file name ends in .pdf. What is it most likely? (a) a sound (b) a picture (c) a document (d) a video
9. 9.💾 Which is smaller: 1 GB or 1 TB? (a) 1 TB (b) 1 GB
10. 10.📄 A file name ends in .png. What is it most likely? (a) a picture (b) a video (c) a document (d) a sound
11. 11.💾 Which is smaller: 1 byte or 1 KB? (a) 1 byte (b) 1 KB
12. 12.⌨️ In a word processor, what does Ctrl+X do? (a) paste (b) redo (c) cut (d) undo
13. 13.💾 Which is smaller: 1 byte or 1 MB? (a) 1 MB (b) 1 byte
14. 14.True or false: Ctrl+X is the shortcut to paste. (a) False (b) True
15. 15.💾 How many MB are there in 3 GB?
16. 16.True or false: a pen drive is an output device. (a) False (b) True
17. 17.True or false: a hard disk is hardware. (a) False (b) True
18. 18.🧰 Is a speaker a storage, input or output device? (a) an input device (b) an output device (c) a storage device
19. 19.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+U (b) Ctrl+I (c) Ctrl+B (d) Ctrl+F
20. 20.✋ Which can we touch: hardware or software? (a) hardware (b) software
21. 21.What does it mean to move a file? (a) store your work (b) make a brand-new one (c) put it in another place (d) make an exact twin
22. 22.💾 Which is bigger: 1 byte or 1 bit? (a) 1 byte (b) 1 bit
23. 23.🔍 Which is the odd one out? (a) mouse (b) scanner (c) microphone (d) pen drive
24. 24.True or false: a keyboard is hardware. (a) True (b) False
25. 25.💾 How many bytes are there in 2 KB?
26. 26.True or false: storage (like a hard disk) keeps photos for years. (a) True (b) False
27. 27.💾 How many bytes are there in 3 KB?
28. 28.📄 A file name ends in .wav. What is it most likely? (a) a picture (b) a sound (c) a video (d) a document
29. 29.True or false: Ctrl+Z is the shortcut to select all. (a) True (b) False
30. 30.⌨️ In a word processor, what does Ctrl+S do? (a) copy (b) undo (c) save (d) paste
31. 31.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the memory card (b) the pen drive (c) RAM (d) the hard disk
32. 32.Which of these is true of RAM? (a) is permanent storage (b) keeps data when off (c) keeps your saved files (d) is the working memory
33. 33.Which file ending is a picture? (a) .txt (b) .mkv (c) .png (d) .mp3
34. 34.💾 Which one loses data when off: RAM or storage? (a) storage (b) RAM
35. 35.True or false: storage (like a hard disk) is temporary memory. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) a typing tutor (b) a printer (c) a web browser (d) a computer game
37. 37.💡 What is the smallest unit of computer memory? (a) KB (b) GB (c) bit (d) byte
38. 38.💾 Which one holds apps that are open: RAM or storage? (a) storage (b) RAM
39. 39.What does it mean to open a file? (a) change its name (b) put it in another place (c) see what is inside (d) make an exact twin
40. 40.Which shortcut do we press to undo? (a) Ctrl+Y (b) Ctrl+X (c) Ctrl+Z (d) Ctrl+V

Free computer lessons, practice and worksheets at talentjr.in/computer-worksheets