Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 279 · 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 of these is an output device? (a) pen drive (b) solid-state drive (c) printer (d) keyboard
2. 2.True or false: Ctrl+A is the shortcut to print. (a) False (b) True
3. 3.Which shortcut do we press to cut? (a) Ctrl+C (b) Ctrl+A (c) Ctrl+X (d) Ctrl+S
4. 4.🧩 Is a typing tutor hardware or software? (a) hardware (b) software
5. 5.💾 Which is smaller: 1 TB or 1 byte? (a) 1 byte (b) 1 TB
6. 6.🧩 Is an operating system hardware or software? (a) hardware (b) software
7. 7.📁 What do we call a folder inside another folder? (a) an icon (b) a big file (c) a printer (d) a subfolder
8. 8.📄 A file name ends in .txt. What is it most likely? (a) a sound (b) a video (c) a picture (d) a document
9. 9.⌨️ In a word processor, what does Ctrl+S do? (a) cut (b) save (c) copy (d) redo
10. 10.True or false: Ctrl+C is the shortcut to save. (a) True (b) False
11. 11.True or false: to create a file means to make an exact twin. (a) False (b) True
12. 12.Which of these is an input device? (a) pen drive (b) microphone (c) hard disk (d) speaker
13. 13.💾 Which is smaller: 1 byte or 1 bit? (a) 1 bit (b) 1 byte
14. 14.Which of these is software? (a) a web browser (b) a webcam (c) a hard disk (d) a monitor
15. 15.💾 How many MB are there in 3 GB?
16. 16.Which of these is hardware? (a) a keyboard (b) an operating system (c) a paint program (d) a music player app
17. 17.🔍 Which is the odd one out? (a) a monitor (b) a web browser (c) a keyboard (d) a pen drive
18. 18.🧩 Is a speaker hardware or software? (a) software (b) hardware
19. 19.🔍 Which is the odd one out? (a) a keyboard (b) a monitor (c) a speaker (d) a calculator app
20. 20.🧰 Is a projector a storage, input or output device? (a) an output device (b) a storage device (c) an input device
21. 21.🧩 Is a web browser hardware or software? (a) hardware (b) software
22. 22.💾 How many GB are there in 1 TB?
23. 23.🧾 Software is a set of ___ for the computer. (a) screws (b) instructions (c) wires (d) buttons
24. 24.🧰 Is a mouse a storage, input or output device? (a) an input device (b) a storage device (c) an output device
25. 25.📄 A file name ends in .png. What is it most likely? (a) a picture (b) a document (c) a video (d) a sound
26. 26.🔍 Which is the odd one out? (a) hard disk (b) mouse (c) pen drive (d) solid-state drive
27. 27.Which shortcut do we press to paste? (a) Ctrl+X (b) Ctrl+C (c) Ctrl+S (d) Ctrl+V
28. 28.✋ Which can we touch: hardware or software? (a) software (b) hardware
29. 29.True or false: a memory card is a storage device. (a) False (b) True
30. 30.💡 What is the smallest unit of computer memory? (a) GB (b) byte (c) bit (d) KB
31. 31.Which file ending is a video? (a) .gif (b) .mp4 (c) .pdf (d) .txt
32. 32.🔍 Which is the odd one out? (a) a typing tutor (b) a hard disk (c) a scanner (d) a pen drive
33. 33.📂 What holds many files together, like a school bag holds books? (a) a speaker (b) a pixel (c) a mouse (d) a folder
34. 34.🔍 Which is the odd one out? (a) a pen drive (b) a calculator app (c) a music player app (d) a paint program
35. 35.Which of these is software? (a) a speaker (b) a scanner (c) a calculator app (d) a keyboard
36. 36.True or false: a computer game is hardware. (a) True (b) False
37. 37.Which of these is hardware? (a) a paint program (b) a webcam (c) a word processor (d) a typing tutor
38. 38.⌨️ In a word processor, what does Ctrl+Y do? (a) undo (b) select all (c) cut (d) redo
39. 39.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Copy (b) Redo (c) Cut (d) Delete
40. 40.💾 How many bytes are there in 1 KB?

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