Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 577 · 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.Which file ending is a picture? (a) .mkv (b) .mp3 (c) .pdf (d) .gif
2. 2.💾 How many bytes are there in 2 KB?
3. 3.True or false: storage (like a hard disk) is temporary memory. (a) False (b) True
4. 4.Which of these is software? (a) a speaker (b) a paint program (c) a webcam (d) a keyboard
5. 5.💾 How many MB are there in 1 GB?
6. 6.✋ Which can we touch: hardware or software? (a) software (b) hardware
7. 7.True or false: Ctrl+C is the shortcut to copy. (a) False (b) True
8. 8.True or false: to save a file means to give it a new name. (a) False (b) True
9. 9.🧩 Is a paint program hardware or software? (a) hardware (b) software
10. 10.✂️ You want to move a sentence to the end. What do you use first? (a) Cut (b) Undo (c) Delete (d) Print
11. 11.Which shortcut do we press to copy? (a) Ctrl+V (b) Ctrl+P (c) Ctrl+A (d) Ctrl+C
12. 12.🧩 Is a speaker hardware or software? (a) software (b) hardware
13. 13.🧩 Is a monitor hardware or software? (a) software (b) hardware
14. 14.💾 Which is bigger: 1 KB or 1 GB? (a) 1 GB (b) 1 KB
15. 15.What does it mean to copy a file? (a) store your work (b) make a brand-new one (c) make an exact twin (d) give it a new name
16. 16.⌨️ In a word processor, what does Ctrl+P do? (a) cut (b) print (c) paste (d) redo
17. 17.Which shortcut do we press to print? (a) Ctrl+P (b) Ctrl+X (c) Ctrl+C (d) Ctrl+A
18. 18.🔍 Which is the odd one out? (a) a web browser (b) a computer game (c) a pen drive (d) an operating system
19. 19.Which of these is hardware? (a) an operating system (b) a mouse (c) a calculator app (d) a web browser
20. 20.💾 How many bits are there in 2 bytes?
21. 21.Which of these is an output device? (a) projector (b) pen drive (c) microphone (d) scanner
22. 22.📁 Which word means to “store your work” (for a file or folder)? (a) create (b) save (c) rename (d) open
23. 23.True or false: a webcam is software. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) monitor (b) scanner (c) printer (d) projector
25. 25.True or false: to save a file means to put it in another place. (a) False (b) True
26. 26.⌨️ In a word processor, what does Ctrl+S do? (a) save (b) undo (c) copy (d) print
27. 27.📁 What do we call a folder inside another folder? (a) a printer (b) a big file (c) a subfolder (d) an icon
28. 28.True or false: a scanner is an output device. (a) False (b) True
29. 29.Which of these is an input device? (a) solid-state drive (b) printer (c) projector (d) scanner
30. 30.True or false: Ctrl+A is the shortcut to redo. (a) True (b) False
31. 31.Which shortcut do we press to select all? (a) Ctrl+C (b) Ctrl+A (c) Ctrl+X (d) Ctrl+P
32. 32.💾 Which is bigger: 1 bit or 1 byte? (a) 1 bit (b) 1 byte
33. 33.Which file ending is a picture? (a) .mkv (b) .png (c) .txt (d) .mp4
34. 34.🔢 A bit can be only 0 or ___. (a) 5 (b) 2 (c) 9 (d) 1
35. 35.💾 How many bits are there in 8 bytes?
36. 36.👩‍💻 What do we call people who write software? (a) farmers (b) tailors (c) programmers (d) plumbers
37. 37.💾 Which is smaller: 1 KB or 1 byte? (a) 1 byte (b) 1 KB
38. 38.⌨️ In a word processor, what does Ctrl+C do? (a) print (b) save (c) copy (d) cut
39. 39.📄 A file name ends in .mkv. What is it most likely? (a) a picture (b) a sound (c) a video (d) a document
40. 40.😮 You deleted a word by mistake. What brings it back? (a) Undo (b) Copy (c) Save (d) Cut

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