Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 101 · 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 speaker is an input device. (a) False (b) True
2. 2.What does it mean to rename a file? (a) store your work (b) make a brand-new one (c) put it in another place (d) give it a new name
3. 3.🧾 Software is a set of ___ for the computer. (a) wires (b) buttons (c) screws (d) instructions
4. 4.Which of these is software? (a) a keyboard (b) a paint program (c) a webcam (d) a monitor
5. 5.True or false: RAM keeps photos for years. (a) True (b) False
6. 6.💾 Which is bigger: 1 KB or 1 MB? (a) 1 MB (b) 1 KB
7. 7.🖍️ Before we cut or copy text, we must first ___ it. (a) save (b) select (c) delete (d) print
8. 8.🔍 Which is the odd one out? (a) a scanner (b) a keyboard (c) a computer game (d) a hard disk
9. 9.🧩 Is a keyboard hardware or software? (a) hardware (b) software
10. 10.💾 Which is bigger: 1 bit or 1 MB? (a) 1 bit (b) 1 MB
11. 11.🔍 Which is the odd one out? (a) speaker (b) projector (c) scanner (d) monitor
12. 12.Which of these is hardware? (a) a word processor (b) a paint program (c) a webcam (d) a computer game
13. 13.True or false: a music player app is software. (a) False (b) True
14. 14.Which of these is hardware? (a) a web browser (b) a computer game (c) a paint program (d) a keyboard
15. 15.📷 A camera keeps its photos on a small ___. (a) speaker (b) keyboard (c) mouse pad (d) memory card
16. 16.🏷️ Every file has a ___ so we can find it. (a) name (b) weight (c) smell (d) taste
17. 17.📁 What do we call a folder inside another folder? (a) a big file (b) an icon (c) a subfolder (d) a printer
18. 18.💾 How many KB are there in 1 MB?
19. 19.🔍 Which is the odd one out? (a) keyboard (b) microphone (c) scanner (d) speaker
20. 20.💾 Which is smaller: 1 bit or 1 TB? (a) 1 TB (b) 1 bit
21. 21.True or false: a typing tutor is software. (a) False (b) True
22. 22.Which shortcut do we press to cut? (a) Ctrl+C (b) Ctrl+X (c) Ctrl+A (d) Ctrl+P
23. 23.😮 You deleted a word by mistake. What brings it back? (a) Save (b) Cut (c) Undo (d) Copy
24. 24.Which shortcut do we press to select all? (a) Ctrl+A (b) Ctrl+X (c) Ctrl+P (d) Ctrl+V
25. 25.Which shortcut do we press to copy? (a) Ctrl+C (b) Ctrl+V (c) Ctrl+X (d) Ctrl+S
26. 26.🔍 Which is the odd one out? (a) scanner (b) microphone (c) mouse (d) pen drive
27. 27.True or false: an operating system is hardware. (a) False (b) True
28. 28.🧩 Is a typing tutor hardware or software? (a) hardware (b) software
29. 29.True or false: Ctrl+Y is the shortcut to redo. (a) True (b) False
30. 30.What does it mean to create a file? (a) make a brand-new one (b) make an exact twin (c) throw it away (d) give it a new name
31. 31.Which of these is a storage device? (a) keyboard (b) printer (c) memory card (d) microphone
32. 32.True or false: Ctrl+X is the shortcut to cut. (a) True (b) False
33. 33.⌨️ In a word processor, what does Ctrl+Z do? (a) print (b) redo (c) undo (d) save
34. 34.💾 Which is smaller: 1 GB or 1 TB? (a) 1 GB (b) 1 TB
35. 35.🔍 Which is the odd one out? (a) an operating system (b) a calculator app (c) a scanner (d) a web browser
36. 36.⌨️ In a word processor, what does Ctrl+X do? (a) redo (b) paste (c) save (d) cut
37. 37.True or false: RAM is the working memory. (a) True (b) False
38. 38.🧩 Is a music player app hardware or software? (a) software (b) hardware
39. 39.💾 How many bytes are there in 1 KB?
40. 40.📁 Which word means to “store your work” (for a file or folder)? (a) save (b) open (c) delete (d) rename

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