Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 126 · 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.True or false: a keyboard is an output device. (a) True (b) False
2. 2.📁 Which word means to “change its name” (for a file or folder)? (a) rename (b) open (c) move (d) delete
3. 3.💾 Which is smaller: 1 TB or 1 bit? (a) 1 TB (b) 1 bit
4. 4.✂️ You want to move a sentence to the end. What do you use first? (a) Cut (b) Delete (c) Undo (d) Print
5. 5.🧰 Is a projector a storage, input or output device? (a) an input device (b) an output device (c) a storage device
6. 6.👩‍💻 What do we call people who write software? (a) programmers (b) farmers (c) plumbers (d) tailors
7. 7.🔍 Which is the odd one out? (a) keyboard (b) mouse (c) printer (d) scanner
8. 8.💾 How many KB are there in 3 MB?
9. 9.🧩 Is a printer hardware or software? (a) hardware (b) software
10. 10.True or false: Ctrl+Z is the shortcut to save. (a) True (b) False
11. 11.💾 How many MB are there in 3 GB?
12. 12.💾 Which is bigger: 1 bit or 1 TB? (a) 1 TB (b) 1 bit
13. 13.💾 Which is bigger: 1 TB or 1 KB? (a) 1 KB (b) 1 TB
14. 14.⌨️ In a word processor, what does Ctrl+X do? (a) save (b) paste (c) undo (d) cut
15. 15.🧩 Is a paint program hardware or software? (a) hardware (b) software
16. 16.⌨️ In a word processor, what does Ctrl+C do? (a) paste (b) print (c) cut (d) copy
17. 17.✋ Which can we touch: hardware or software? (a) hardware (b) software
18. 18.True or false: a solid-state drive is a storage device. (a) False (b) True
19. 19.🔢 A bit can be only 0 or ___. (a) 5 (b) 1 (c) 9 (d) 2
20. 20.True or false: storage (like a hard disk) loses data when off. (a) False (b) True
21. 21.💡 What is the smallest unit of computer memory? (a) byte (b) GB (c) bit (d) KB
22. 22.True or false: a hard disk is an output device. (a) True (b) False
23. 23.True or false: to rename a file means to give it a new name. (a) False (b) True
24. 24.🏷️ Every file has a ___ so we can find it. (a) taste (b) name (c) weight (d) smell
25. 25.📄 A file name ends in .mp3. What is it most likely? (a) a video (b) a picture (c) a document (d) a sound
26. 26.True or false: RAM keeps your saved files. (a) False (b) True
27. 27.Which shortcut do we press to cut? (a) Ctrl+V (b) Ctrl+Z (c) Ctrl+X (d) Ctrl+C
28. 28.🔍 Which is the odd one out? (a) a keyboard (b) a calculator app (c) a web browser (d) a music player app
29. 29.⌨️ In a word processor, what does Ctrl+S do? (a) select all (b) cut (c) copy (d) save
30. 30.💾 Which is bigger: 1 KB or 1 TB? (a) 1 KB (b) 1 TB
31. 31.💾 Which is bigger: 1 TB or 1 bit? (a) 1 bit (b) 1 TB
32. 32.True or false: storage (like a hard disk) is temporary memory. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) hard disk (b) monitor (c) pen drive (d) memory card
34. 34.🧩 Is a music player app hardware or software? (a) software (b) hardware
35. 35.🔍 Which is the odd one out? (a) a computer game (b) a monitor (c) a webcam (d) a pen drive
36. 36.⌨️ In a word processor, what does Ctrl+P do? (a) undo (b) print (c) save (d) paste
37. 37.Which shortcut do we press to copy? (a) Ctrl+Z (b) Ctrl+V (c) Ctrl+C (d) Ctrl+A
38. 38.Which file ending is a video? (a) .jpg (b) .pdf (c) .txt (d) .mkv
39. 39.Which file ending is a video? (a) .pdf (b) .mp3 (c) .jpg (d) .mp4
40. 40.💾 Which is bigger: 1 GB or 1 bit? (a) 1 bit (b) 1 GB

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