Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 527 · 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.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Redo (b) Cut (c) Copy (d) Delete
2. 2.Which of these is software? (a) a printer (b) a mouse (c) a music player app (d) a scanner
3. 3.▌ What is the blinking line that shows where you will type? (a) the icon (b) the toolbar (c) the folder (d) the cursor
4. 4.👩‍💻 What do we call people who write software? (a) programmers (b) farmers (c) plumbers (d) tailors
5. 5.Which file ending is a video? (a) .mkv (b) .wav (c) .jpg (d) .txt
6. 6.🔍 Which is the odd one out? (a) a printer (b) an operating system (c) a pen drive (d) a mouse
7. 7.💡 What is the smallest unit of computer memory? (a) byte (b) GB (c) bit (d) KB
8. 8.Which of these is true of RAM? (a) keeps data when off (b) is permanent storage (c) keeps photos for years (d) is temporary memory
9. 9.🔍 Which is the odd one out? (a) a word processor (b) a web browser (c) a webcam (d) a calculator app
10. 10.True or false: Ctrl+S is the shortcut to save. (a) True (b) False
11. 11.💾 Which is smaller: 1 MB or 1 byte? (a) 1 byte (b) 1 MB
12. 12.🔍 Which is the odd one out? (a) a pen drive (b) a webcam (c) a mouse (d) a web browser
13. 13.🔍 Which is the odd one out? (a) speaker (b) scanner (c) keyboard (d) microphone
14. 14.True or false: to save a file means to store your work. (a) True (b) False
15. 15.💾 How many MB are there in 1 GB?
16. 16.True or false: to delete a file means to give it a new name. (a) False (b) True
17. 17.💾 Which is smaller: 1 bit or 1 KB? (a) 1 KB (b) 1 bit
18. 18.⚡ Which is faster for the computer to work with? (a) a printer (b) a memory card (c) RAM (d) a pen drive
19. 19.Which of these is software? (a) a scanner (b) a keyboard (c) a speaker (d) a web browser
20. 20.📄 A file name ends in .mp4. What is it most likely? (a) a sound (b) a document (c) a video (d) a picture
21. 21.💾 How many bytes are there in 4 KB?
22. 22.📄 A file name ends in .mkv. What is it most likely? (a) a picture (b) a sound (c) a document (d) a video
23. 23.Which of these is hardware? (a) a typing tutor (b) a web browser (c) a computer game (d) a webcam
24. 24.💾 Which is smaller: 1 TB or 1 bit? (a) 1 bit (b) 1 TB
25. 25.💾 Which is smaller: 1 bit or 1 TB? (a) 1 bit (b) 1 TB
26. 26.💾 Which is bigger: 1 GB or 1 byte? (a) 1 byte (b) 1 GB
27. 27.Which of these is a storage device? (a) memory card (b) scanner (c) speaker (d) projector
28. 28.🧩 Is a speaker hardware or software? (a) hardware (b) software
29. 29.Which of these is true of storage (like a hard disk)? (a) loses data when off (b) keeps data when off (c) is temporary memory (d) is the working memory
30. 30.🖍️ Before we cut or copy text, we must first ___ it. (a) select (b) save (c) delete (d) print
31. 31.✂️ You want to move a sentence to the end. What do you use first? (a) Delete (b) Undo (c) Cut (d) Print
32. 32.🔍 Which is the odd one out? (a) pen drive (b) scanner (c) hard disk (d) memory card
33. 33.True or false: Ctrl+X is the shortcut to select all. (a) False (b) True
34. 34.True or false: a hard disk is a storage device. (a) False (b) True
35. 35.Which shortcut do we press to copy? (a) Ctrl+Y (b) Ctrl+X (c) Ctrl+C (d) Ctrl+P
36. 36.⌨️ In a word processor, what does Ctrl+Z do? (a) undo (b) copy (c) paste (d) cut
37. 37.True or false: RAM is temporary memory. (a) True (b) False
38. 38.True or false: an operating system is hardware. (a) False (b) True
39. 39.🧩 Is an operating system hardware or software? (a) software (b) hardware
40. 40.💾 How many bits are there in 1 byte?

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