Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 593 · 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.🧰 Is a projector a storage, input or output device? (a) a storage device (b) an input device (c) an output device
2. 2.True or false: storage (like a hard disk) is the working memory. (a) False (b) True
3. 3.Which of these is software? (a) a hard disk (b) a pen drive (c) a paint program (d) a monitor
4. 4.True or false: Ctrl+A is the shortcut to cut. (a) False (b) True
5. 5.Which shortcut do we press to cut? (a) Ctrl+C (b) Ctrl+P (c) Ctrl+X (d) Ctrl+Z
6. 6.🔍 Which is the odd one out? (a) a web browser (b) a keyboard (c) a mouse (d) a speaker
7. 7.Which file ending is a video? (a) .pdf (b) .mkv (c) .wav (d) .gif
8. 8.💾 How many MB are there in 3 GB?
9. 9.💾 Which is bigger: 1 byte or 1 GB? (a) 1 byte (b) 1 GB
10. 10.🏷️ Every file has a ___ so we can find it. (a) weight (b) taste (c) smell (d) name
11. 11.🔍 Which is the odd one out? (a) a keyboard (b) a scanner (c) a typing tutor (d) a mouse
12. 12.😮 You deleted a word by mistake. What brings it back? (a) Save (b) Cut (c) Undo (d) Copy
13. 13.💾 Which is bigger: 1 KB or 1 byte? (a) 1 KB (b) 1 byte
14. 14.💾 Which one keeps data when off: RAM or storage? (a) storage (b) RAM
15. 15.💾 Which is bigger: 1 KB or 1 MB? (a) 1 MB (b) 1 KB
16. 16.What does it mean to save a file? (a) put it in another place (b) throw it away (c) get rid of it (d) keep your work for later
17. 17.🔍 Which is the odd one out? (a) a pen drive (b) a computer game (c) a word processor (d) a calculator app
18. 18.✋ Which can we touch: hardware or software? (a) software (b) hardware
19. 19.💾 How many bits are there in 8 bytes?
20. 20.🧩 Is a music player app hardware or software? (a) hardware (b) software
21. 21.⌨️ In a word processor, what does Ctrl+S do? (a) copy (b) redo (c) cut (d) save
22. 22.True or false: Ctrl+Y is the shortcut to redo. (a) True (b) False
23. 23.💾 How many bits are there in 9 bytes?
24. 24.💾 Which is smaller: 1 KB or 1 bit? (a) 1 bit (b) 1 KB
25. 25.True or false: to create a file means to make a brand-new one. (a) True (b) False
26. 26.⌨️ In a word processor, what does Ctrl+P do? (a) paste (b) save (c) print (d) copy
27. 27.🧩 Is a paint program hardware or software? (a) software (b) hardware
28. 28.Which of these is a storage device? (a) scanner (b) pen drive (c) monitor (d) projector
29. 29.True or false: storage (like a hard disk) is temporary memory. (a) True (b) False
30. 30.⌨️ In a word processor, what does Ctrl+Z do? (a) save (b) print (c) select all (d) undo
31. 31.📁 Which word means to “make an exact twin” (for a file or folder)? (a) delete (b) open (c) create (d) copy
32. 32.👩‍💻 What do we call people who write software? (a) tailors (b) farmers (c) programmers (d) plumbers
33. 33.🔍 Which is the odd one out? (a) a computer game (b) a webcam (c) a music player app (d) a calculator app
34. 34.💾 Which is bigger: 1 byte or 1 bit? (a) 1 bit (b) 1 byte
35. 35.🧩 Is a printer hardware or software? (a) software (b) hardware
36. 36.🔢 A bit can be only 0 or ___. (a) 2 (b) 5 (c) 1 (d) 9
37. 37.Which file ending is a video? (a) .mp4 (b) .txt (c) .mp3 (d) .png
38. 38.🧾 Software is a set of ___ for the computer. (a) wires (b) buttons (c) screws (d) instructions
39. 39.🔍 Which is the odd one out? (a) pen drive (b) monitor (c) memory card (d) hard disk
40. 40.📄 A file name ends in .mp3. What is it most likely? (a) a picture (b) a video (c) a document (d) a sound

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