Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 199 · 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 of these is hardware? (a) a web browser (b) a typing tutor (c) a word processor (d) a scanner
2. 2.What does it mean to delete a file? (a) keep your work for later (b) put it in another place (c) store your work (d) get rid of it
3. 3.True or false: a pen drive is software. (a) True (b) False
4. 4.🧩 Is an operating system hardware or software? (a) hardware (b) software
5. 5.Which file ending is a picture? (a) .mp3 (b) .mkv (c) .wav (d) .jpg
6. 6.📄 A file name ends in .txt. What is it most likely? (a) a document (b) a video (c) a picture (d) a sound
7. 7.💾 Which is smaller: 1 bit or 1 MB? (a) 1 bit (b) 1 MB
8. 8.Which shortcut do we press to paste? (a) Ctrl+A (b) Ctrl+V (c) Ctrl+S (d) Ctrl+Z
9. 9.💾 How many bits are there in 10 bytes?
10. 10.💾 How many GB are there in 1 TB?
11. 11.💾 How many bits are there in 11 bytes?
12. 12.True or false: to delete a file means to get rid of it. (a) True (b) False
13. 13.True or false: a printer is an output device. (a) False (b) True
14. 14.✋ Which can we touch: hardware or software? (a) software (b) hardware
15. 15.Which of these is hardware? (a) a calculator app (b) a typing tutor (c) an operating system (d) a monitor
16. 16.🔢 A bit can be only 0 or ___. (a) 9 (b) 5 (c) 1 (d) 2
17. 17.📷 A camera keeps its photos on a small ___. (a) memory card (b) speaker (c) mouse pad (d) keyboard
18. 18.📄 A file name ends in .mp3. What is it most likely? (a) a sound (b) a picture (c) a video (d) a document
19. 19.True or false: to rename a file means to keep your work for later. (a) True (b) False
20. 20.Which shortcut do we press to select all? (a) Ctrl+X (b) Ctrl+V (c) Ctrl+A (d) Ctrl+C
21. 21.Which of these is software? (a) a speaker (b) a mouse (c) a pen drive (d) a paint program
22. 22.Which of these is true of storage (like a hard disk)? (a) keeps data when off (b) holds apps that are open (c) is the working memory (d) loses data when off
23. 23.💾 Which one keeps photos for years: RAM or storage? (a) RAM (b) storage
24. 24.⚡ Which is faster for the computer to work with? (a) a memory card (b) a pen drive (c) RAM (d) a printer
25. 25.True or false: a memory card is a storage device. (a) False (b) True
26. 26.🧩 Is a webcam hardware or software? (a) hardware (b) software
27. 27.📄 A file name ends in .pdf. What is it most likely? (a) a picture (b) a video (c) a document (d) a sound
28. 28.True or false: Ctrl+P is the shortcut to redo. (a) False (b) True
29. 29.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Cut (b) Delete (c) Redo (d) Copy
30. 30.💾 Which is bigger: 1 MB or 1 KB? (a) 1 KB (b) 1 MB
31. 31.💡 What is the smallest unit of computer memory? (a) GB (b) byte (c) KB (d) bit
32. 32.Which file ending is a picture? (a) .txt (b) .gif (c) .mkv (d) .mp4
33. 33.💾 Which one is permanent storage: RAM or storage? (a) RAM (b) storage
34. 34.Which of these is hardware? (a) a webcam (b) a web browser (c) a calculator app (d) a paint program
35. 35.🔍 Which is the odd one out? (a) a calculator app (b) a word processor (c) a music player app (d) a printer
36. 36.🧩 Is a keyboard hardware or software? (a) hardware (b) software
37. 37.🔌 The power goes off suddenly. Which loses the unsaved work? (a) RAM (b) the memory card (c) the hard disk (d) the pen drive
38. 38.💾 Which is bigger: 1 TB or 1 KB? (a) 1 KB (b) 1 TB
39. 39.🔍 Which is the odd one out? (a) hard disk (b) memory card (c) solid-state drive (d) keyboard
40. 40.🧩 Is a monitor hardware or software? (a) hardware (b) software

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