Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 280 · 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 printer is an output device. (a) False (b) True
2. 2.🔍 Which is the odd one out? (a) hard disk (b) memory card (c) pen drive (d) microphone
3. 3.🧰 Is a monitor a storage, input or output device? (a) an output device (b) a storage device (c) an input device
4. 4.😮 You deleted a word by mistake. What brings it back? (a) Cut (b) Save (c) Undo (d) Copy
5. 5.🧰 Is a pen drive a storage, input or output device? (a) an input device (b) an output device (c) a storage device
6. 6.✋ Which can we touch: hardware or software? (a) software (b) hardware
7. 7.True or false: to move a file means to make an exact twin. (a) False (b) True
8. 8.💾 How many bytes are there in 4 KB?
9. 9.Which file ending is a picture? (a) .mkv (b) .png (c) .avi (d) .pdf
10. 10.Which of these is an output device? (a) hard disk (b) scanner (c) keyboard (d) speaker
11. 11.True or false: Ctrl+V is the shortcut to paste. (a) False (b) True
12. 12.📁 What do we call a folder inside another folder? (a) a subfolder (b) a printer (c) a big file (d) an icon
13. 13.💾 Which is bigger: 1 byte or 1 bit? (a) 1 byte (b) 1 bit
14. 14.Which of these is software? (a) a mouse (b) a monitor (c) a printer (d) a web browser
15. 15.💾 How many bits are there in 11 bytes?
16. 16.True or false: storage (like a hard disk) loses data when off. (a) False (b) True
17. 17.📁 Which word means to “get rid of it” (for a file or folder)? (a) open (b) save (c) create (d) delete
18. 18.🧾 Software is a set of ___ for the computer. (a) wires (b) instructions (c) screws (d) buttons
19. 19.💾 How many bytes are there in 2 KB?
20. 20.Which of these is software? (a) a webcam (b) a scanner (c) a mouse (d) a music player app
21. 21.💾 Which is smaller: 1 MB or 1 KB? (a) 1 KB (b) 1 MB
22. 22.📁 Which word means to “change its name” (for a file or folder)? (a) delete (b) open (c) rename (d) save
23. 23.🧩 Is a computer game hardware or software? (a) hardware (b) software
24. 24.✂️ You want to move a sentence to the end. What do you use first? (a) Delete (b) Print (c) Undo (d) Cut
25. 25.⌨️ In a word processor, what does Ctrl+C do? (a) select all (b) redo (c) copy (d) cut
26. 26.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+I (b) Ctrl+U (c) Ctrl+F (d) Ctrl+B
27. 27.💾 How many bytes are there in 3 KB?
28. 28.Which shortcut do we press to print? (a) Ctrl+Y (b) Ctrl+A (c) Ctrl+S (d) Ctrl+P
29. 29.True or false: to rename a file means to give it a new name. (a) True (b) False
30. 30.📂 What holds many files together, like a school bag holds books? (a) a mouse (b) a pixel (c) a speaker (d) a folder
31. 31.🔍 Which is the odd one out? (a) a word processor (b) a scanner (c) a calculator app (d) a computer game
32. 32.True or false: to delete a file means to make a brand-new one. (a) True (b) False
33. 33.🧰 Is a solid-state drive a storage, input or output device? (a) a storage device (b) an input device (c) an output device
34. 34.🧩 Is a printer hardware or software? (a) software (b) hardware
35. 35.💾 How many bits are there in 4 bytes?
36. 36.Which shortcut do we press to save? (a) Ctrl+S (b) Ctrl+C (c) Ctrl+V (d) Ctrl+X
37. 37.Which file ending is a video? (a) .mp3 (b) .mkv (c) .png (d) .txt
38. 38.Which shortcut do we press to select all? (a) Ctrl+S (b) Ctrl+C (c) Ctrl+Z (d) Ctrl+A
39. 39.💡 What is the smallest unit of computer memory? (a) byte (b) KB (c) bit (d) GB
40. 40.💾 Which one holds apps that are open: RAM or storage? (a) storage (b) RAM

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