Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 214 · 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.💾 How many KB are there in 1 MB?
2. 2.💾 How many bytes are there in 2 KB?
3. 3.🧩 Is a paint program hardware or software? (a) hardware (b) software
4. 4.True or false: Ctrl+X is the shortcut to cut. (a) True (b) False
5. 5.🔢 A bit can be only 0 or ___. (a) 9 (b) 1 (c) 2 (d) 5
6. 6.💡 What is the smallest unit of computer memory? (a) KB (b) GB (c) byte (d) bit
7. 7.☁️ Saving files on the internet to use from anywhere is called ___. (a) cloud storage (b) paper storage (c) rain storage (d) box storage
8. 8.What does it mean to move a file? (a) change its name (b) store your work (c) make a brand-new one (d) put it in another place
9. 9.🧾 Software is a set of ___ for the computer. (a) wires (b) buttons (c) screws (d) instructions
10. 10.📄 A file name ends in .txt. What is it most likely? (a) a video (b) a sound (c) a picture (d) a document
11. 11.📁 Which word means to “get rid of it” (for a file or folder)? (a) rename (b) delete (c) copy (d) open
12. 12.Which file ending is a sound? (a) .wav (b) .mkv (c) .txt (d) .gif
13. 13.💾 How many bits are there in 1 byte?
14. 14.📋 You want the same sentence in two places. What do you use first? (a) Undo (b) Delete (c) Copy (d) Backspace
15. 15.📄 A file name ends in .png. What is it most likely? (a) a document (b) a picture (c) a video (d) a sound
16. 16.💾 Which is bigger: 1 GB or 1 bit? (a) 1 GB (b) 1 bit
17. 17.True or false: to rename a file means to make a brand-new one. (a) False (b) True
18. 18.🖍️ Before we cut or copy text, we must first ___ it. (a) select (b) print (c) save (d) delete
19. 19.Which of these is true of RAM? (a) keeps your saved files (b) keeps photos for years (c) keeps data when off (d) loses data when off
20. 20.True or false: to rename a file means to get rid of it. (a) False (b) True
21. 21.Which of these is a storage device? (a) mouse (b) projector (c) monitor (d) memory card
22. 22.What does it mean to delete a file? (a) give it a new name (b) see what is inside (c) store your work (d) throw it away
23. 23.True or false: to open a file means to see what is inside. (a) False (b) True
24. 24.True or false: a projector is a storage device. (a) True (b) False
25. 25.True or false: a speaker is hardware. (a) False (b) True
26. 26.True or false: storage (like a hard disk) holds apps that are open. (a) False (b) True
27. 27.📄 A file name ends in .gif. What is it most likely? (a) a picture (b) a video (c) a document (d) a sound
28. 28.💾 Which one keeps your saved files: RAM or storage? (a) RAM (b) storage
29. 29.🔍 Which is the odd one out? (a) a word processor (b) a mouse (c) a web browser (d) a typing tutor
30. 30.Which shortcut do we press to redo? (a) Ctrl+A (b) Ctrl+C (c) Ctrl+Y (d) Ctrl+S
31. 31.💾 Which one loses data when off: RAM or storage? (a) storage (b) RAM
32. 32.💾 Which one is the working memory: RAM or storage? (a) RAM (b) storage
33. 33.📁 What do we call a folder inside another folder? (a) an icon (b) a big file (c) a printer (d) a subfolder
34. 34.💾 Which is smaller: 1 KB or 1 TB? (a) 1 TB (b) 1 KB
35. 35.Which of these is hardware? (a) a mouse (b) a paint program (c) a word processor (d) a web browser
36. 36.Which of these is a storage device? (a) projector (b) speaker (c) hard disk (d) keyboard
37. 37.True or false: storage (like a hard disk) keeps photos for years. (a) True (b) False
38. 38.🧩 Is a webcam hardware or software? (a) software (b) hardware
39. 39.✋ Which can we touch: hardware or software? (a) hardware (b) software
40. 40.True or false: Ctrl+Y is the shortcut to redo. (a) False (b) True

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