Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 91 · 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.⌨️ In a word processor, what does Ctrl+S do? (a) redo (b) cut (c) select all (d) save
2. 2.Which of these is an output device? (a) printer (b) microphone (c) memory card (d) pen drive
3. 3.🧰 Is a printer a storage, input or output device? (a) a storage device (b) an output device (c) an input device
4. 4.🔍 Which is the odd one out? (a) hard disk (b) solid-state drive (c) pen drive (d) microphone
5. 5.💾 Which one is temporary memory: RAM or storage? (a) storage (b) RAM
6. 6.📄 A file name ends in .txt. What is it most likely? (a) a picture (b) a video (c) a document (d) a sound
7. 7.💡 What is the smallest unit of computer memory? (a) KB (b) GB (c) bit (d) byte
8. 8.🔍 Which is the odd one out? (a) a scanner (b) a keyboard (c) a speaker (d) a paint program
9. 9.Which shortcut do we press to undo? (a) Ctrl+S (b) Ctrl+P (c) Ctrl+V (d) Ctrl+Z
10. 10.True or false: Ctrl+P is the shortcut to select all. (a) True (b) False
11. 11.True or false: Ctrl+Z is the shortcut to copy. (a) False (b) True
12. 12.💾 Which is smaller: 1 GB or 1 byte? (a) 1 byte (b) 1 GB
13. 13.💾 Which is bigger: 1 byte or 1 bit? (a) 1 bit (b) 1 byte
14. 14.⌨️ In a word processor, what does Ctrl+C do? (a) print (b) copy (c) paste (d) save
15. 15.Which file ending is a document? (a) .gif (b) .txt (c) .mkv (d) .jpg
16. 16.💾 Which is smaller: 1 bit or 1 byte? (a) 1 byte (b) 1 bit
17. 17.💾 How many KB are there in 4 MB?
18. 18.🧩 Is a monitor hardware or software? (a) software (b) hardware
19. 19.🧩 Is a paint program hardware or software? (a) hardware (b) software
20. 20.🧩 Is a printer hardware or software? (a) software (b) hardware
21. 21.📁 Which word means to “store your work” (for a file or folder)? (a) save (b) copy (c) rename (d) delete
22. 22.True or false: storage (like a hard disk) keeps data when off. (a) True (b) False
23. 23.What does it mean to open a file? (a) throw it away (b) give it a new name (c) make a brand-new one (d) see what is inside
24. 24.Which file ending is a document? (a) .pdf (b) .mp4 (c) .avi (d) .jpg
25. 25.True or false: Ctrl+Y is the shortcut to cut. (a) False (b) True
26. 26.Which of these is an output device? (a) keyboard (b) solid-state drive (c) monitor (d) microphone
27. 27.🔢 A bit can be only 0 or ___. (a) 5 (b) 9 (c) 1 (d) 2
28. 28.👩‍💻 What do we call people who write software? (a) tailors (b) farmers (c) programmers (d) plumbers
29. 29.True or false: a word processor is hardware. (a) True (b) False
30. 30.Which shortcut do we press to copy? (a) Ctrl+C (b) Ctrl+X (c) Ctrl+V (d) Ctrl+A
31. 31.💾 Which is smaller: 1 KB or 1 byte? (a) 1 byte (b) 1 KB
32. 32.True or false: a keyboard is hardware. (a) False (b) True
33. 33.True or false: Ctrl+X is the shortcut to cut. (a) True (b) False
34. 34.📁 Which word means to “change its name” (for a file or folder)? (a) delete (b) rename (c) move (d) copy
35. 35.🧩 Is a speaker hardware or software? (a) hardware (b) software
36. 36.True or false: Ctrl+Y is the shortcut to redo. (a) True (b) False
37. 37.📋 You want the same sentence in two places. What do you use first? (a) Delete (b) Undo (c) Backspace (d) Copy
38. 38.True or false: storage (like a hard disk) keeps your saved files. (a) True (b) False
39. 39.📄 A file name ends in .gif. What is it most likely? (a) a document (b) a sound (c) a video (d) a picture
40. 40.Which of these is an input device? (a) keyboard (b) speaker (c) projector (d) memory card

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