Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 568 · 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 bytes are there in 2 KB?
2. 2.💾 How many bits are there in 8 bytes?
3. 3.⌨️ In a word processor, what does Ctrl+A do? (a) paste (b) select all (c) undo (d) save
4. 4.Which shortcut do we press to save? (a) Ctrl+V (b) Ctrl+C (c) Ctrl+A (d) Ctrl+S
5. 5.📁 What do we call a folder inside another folder? (a) a subfolder (b) a big file (c) an icon (d) a printer
6. 6.Which shortcut do we press to paste? (a) Ctrl+Z (b) Ctrl+C (c) Ctrl+A (d) Ctrl+V
7. 7.💾 Which is smaller: 1 TB or 1 bit? (a) 1 bit (b) 1 TB
8. 8.True or false: RAM loses data when off. (a) False (b) True
9. 9.💾 Which is bigger: 1 GB or 1 byte? (a) 1 GB (b) 1 byte
10. 10.Which of these is software? (a) a calculator app (b) a keyboard (c) a webcam (d) a scanner
11. 11.True or false: RAM keeps data when off. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) monitor (b) scanner (c) microphone (d) mouse
13. 13.💾 Which is bigger: 1 byte or 1 bit? (a) 1 byte (b) 1 bit
14. 14.⌨️ In a word processor, what does Ctrl+Z do? (a) save (b) undo (c) cut (d) copy
15. 15.Which shortcut do we press to select all? (a) Ctrl+Z (b) Ctrl+P (c) Ctrl+V (d) Ctrl+A
16. 16.🧾 Software is a set of ___ for the computer. (a) buttons (b) screws (c) wires (d) instructions
17. 17.🔍 Which is the odd one out? (a) a mouse (b) a printer (c) a speaker (d) a computer game
18. 18.🧩 Is a computer game hardware or software? (a) software (b) hardware
19. 19.💾 Which is smaller: 1 byte or 1 TB? (a) 1 TB (b) 1 byte
20. 20.Which of these is true of RAM? (a) keeps data when off (b) is permanent storage (c) keeps your saved files (d) loses data when off
21. 21.💾 How many bytes are there in 3 KB?
22. 22.Which of these is true of storage (like a hard disk)? (a) is the working memory (b) loses data when off (c) is temporary memory (d) keeps photos for years
23. 23.⌨️ In a word processor, what does Ctrl+C do? (a) undo (b) copy (c) paste (d) select all
24. 24.😮 You deleted a word by mistake. What brings it back? (a) Save (b) Undo (c) Copy (d) Cut
25. 25.💾 Which is smaller: 1 bit or 1 KB? (a) 1 bit (b) 1 KB
26. 26.📁 Which word means to “see what is inside” (for a file or folder)? (a) open (b) copy (c) move (d) create
27. 27.📷 A camera keeps its photos on a small ___. (a) keyboard (b) mouse pad (c) speaker (d) memory card
28. 28.📄 A file name ends in .mp3. What is it most likely? (a) a video (b) a sound (c) a picture (d) a document
29. 29.What does it mean to move a file? (a) put it in another place (b) make an exact twin (c) make a brand-new one (d) change its name
30. 30.💾 Which is smaller: 1 byte or 1 KB? (a) 1 byte (b) 1 KB
31. 31.⌨️ In a word processor, what does Ctrl+P do? (a) print (b) copy (c) undo (d) select all
32. 32.True or false: a printer is software. (a) True (b) False
33. 33.💾 Which is bigger: 1 GB or 1 MB? (a) 1 GB (b) 1 MB
34. 34.True or false: Ctrl+Y is the shortcut to redo. (a) True (b) False
35. 35.🔢 A bit can be only 0 or ___. (a) 1 (b) 9 (c) 5 (d) 2
36. 36.🔍 Which is the odd one out? (a) a webcam (b) a mouse (c) a calculator app (d) a keyboard
37. 37.Which of these is hardware? (a) a webcam (b) a paint program (c) a music player app (d) a computer game
38. 38.True or false: RAM is the working memory. (a) True (b) False
39. 39.True or false: Ctrl+C is the shortcut to copy. (a) False (b) True
40. 40.📄 A file name ends in .mp4. What is it most likely? (a) a video (b) a sound (c) a picture (d) a document

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