Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 83 · 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: Ctrl+V is the shortcut to paste. (a) True (b) False
2. 2.💡 What is the smallest unit of computer memory? (a) KB (b) bit (c) GB (d) byte
3. 3.🔢 A bit can be only 0 or ___. (a) 2 (b) 5 (c) 9 (d) 1
4. 4.Which file ending is a document? (a) .jpg (b) .pdf (c) .mkv (d) .gif
5. 5.What does it mean to move a file? (a) give it a new name (b) keep your work for later (c) get rid of it (d) put it in another place
6. 6.True or false: a printer is an output device. (a) False (b) True
7. 7.Which shortcut do we press to redo? (a) Ctrl+C (b) Ctrl+Y (c) Ctrl+A (d) Ctrl+V
8. 8.📁 What do we call a folder inside another folder? (a) a big file (b) an icon (c) a subfolder (d) a printer
9. 9.True or false: storage (like a hard disk) keeps photos for years. (a) True (b) False
10. 10.Which of these is true of storage (like a hard disk)? (a) is temporary memory (b) loses data when off (c) keeps your saved files (d) holds apps that are open
11. 11.📄 A file name ends in .wav. What is it most likely? (a) a video (b) a sound (c) a document (d) a picture
12. 12.True or false: Ctrl+S is the shortcut to paste. (a) False (b) True
13. 13.Which of these is a storage device? (a) solid-state drive (b) speaker (c) printer (d) microphone
14. 14.True or false: Ctrl+P is the shortcut to print. (a) False (b) True
15. 15.📄 A file name ends in .mp3. What is it most likely? (a) a picture (b) a document (c) a video (d) a sound
16. 16.🧩 Is a webcam hardware or software? (a) software (b) hardware
17. 17.🧩 Is a music player app hardware or software? (a) hardware (b) software
18. 18.True or false: storage (like a hard disk) holds apps that are open. (a) True (b) False
19. 19.💾 Which one is temporary memory: RAM or storage? (a) storage (b) RAM
20. 20.💾 How many MB are there in 3 GB?
21. 21.💾 How many MB are there in 2 GB?
22. 22.💾 Which is bigger: 1 byte or 1 GB? (a) 1 GB (b) 1 byte
23. 23.True or false: a mouse is an input device. (a) True (b) False
24. 24.Which shortcut do we press to save? (a) Ctrl+P (b) Ctrl+Z (c) Ctrl+C (d) Ctrl+S
25. 25.💾 How many bytes are there in 4 KB?
26. 26.True or false: to open a file means to change its name. (a) True (b) False
27. 27.📋 You want the same sentence in two places. What do you use first? (a) Backspace (b) Undo (c) Copy (d) Delete
28. 28.🧾 Software is a set of ___ for the computer. (a) wires (b) buttons (c) screws (d) instructions
29. 29.⌨️ In a word processor, what does Ctrl+Z do? (a) undo (b) save (c) redo (d) cut
30. 30.🧩 Is a computer game hardware or software? (a) software (b) hardware
31. 31.Which of these is true of RAM? (a) loses data when off (b) keeps your saved files (c) keeps data when off (d) keeps photos for years
32. 32.True or false: Ctrl+S is the shortcut to save. (a) True (b) False
33. 33.True or false: a word processor is software. (a) False (b) True
34. 34.Which file ending is a picture? (a) .mp4 (b) .avi (c) .wav (d) .jpg
35. 35.🧩 Is a monitor hardware or software? (a) hardware (b) software
36. 36.True or false: Ctrl+V is the shortcut to cut. (a) True (b) False
37. 37.🧩 Is an operating system hardware or software? (a) software (b) hardware
38. 38.💾 Which is bigger: 1 byte or 1 TB? (a) 1 byte (b) 1 TB
39. 39.📄 A file name ends in .txt. What is it most likely? (a) a document (b) a picture (c) a sound (d) a video
40. 40.⌨️ In a word processor, what does Ctrl+Y do? (a) undo (b) redo (c) copy (d) cut

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