Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 277 · 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 one loses data when off: RAM or storage? (a) storage (b) RAM
2. 2.Which of these is software? (a) a printer (b) a hard disk (c) a speaker (d) a word processor
3. 3.What does it mean to move a file? (a) make an exact twin (b) give it a new name (c) put it in another place (d) get rid of it
4. 4.💾 Which is bigger: 1 KB or 1 GB? (a) 1 KB (b) 1 GB
5. 5.🧩 Is a web browser hardware or software? (a) software (b) hardware
6. 6.💾 How many bits are there in 4 bytes?
7. 7.True or false: a mouse is hardware. (a) True (b) False
8. 8.📁 Which word means to “keep your work for later” (for a file or folder)? (a) create (b) move (c) copy (d) save
9. 9.💾 Which is smaller: 1 GB or 1 MB? (a) 1 GB (b) 1 MB
10. 10.📂 What holds many files together, like a school bag holds books? (a) a mouse (b) a folder (c) a speaker (d) a pixel
11. 11.True or false: to save a file means to store your work. (a) True (b) False
12. 12.🔢 A bit can be only 0 or ___. (a) 2 (b) 1 (c) 5 (d) 9
13. 13.⌨️ In a word processor, what does Ctrl+Y do? (a) save (b) cut (c) undo (d) redo
14. 14.⌨️ In a word processor, what does Ctrl+S do? (a) copy (b) select all (c) undo (d) save
15. 15.📋 You want the same sentence in two places. What do you use first? (a) Undo (b) Copy (c) Delete (d) Backspace
16. 16.🧰 Is a microphone a storage, input or output device? (a) an input device (b) an output device (c) a storage device
17. 17.⌨️ In a word processor, what does Ctrl+C do? (a) copy (b) redo (c) cut (d) save
18. 18.Which of these is software? (a) a keyboard (b) a pen drive (c) a monitor (d) a music player app
19. 19.True or false: a hard disk is an input device. (a) False (b) True
20. 20.💾 Which is bigger: 1 GB or 1 bit? (a) 1 bit (b) 1 GB
21. 21.🔍 Which is the odd one out? (a) a calculator app (b) a music player app (c) an operating system (d) a webcam
22. 22.💾 How many bytes are there in 4 KB?
23. 23.📄 A file name ends in .gif. What is it most likely? (a) a video (b) a picture (c) a document (d) a sound
24. 24.What does it mean to save a file? (a) keep your work for later (b) throw it away (c) see what is inside (d) make an exact twin
25. 25.🧩 Is a scanner hardware or software? (a) hardware (b) software
26. 26.Which file ending is a sound? (a) .mp3 (b) .gif (c) .jpg (d) .pdf
27. 27.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Redo (b) Copy (c) Cut (d) Delete
28. 28.Which of these is software? (a) a keyboard (b) a mouse (c) a speaker (d) a web browser
29. 29.🧩 Is a webcam hardware or software? (a) hardware (b) software
30. 30.💾 Which is bigger: 1 byte or 1 TB? (a) 1 byte (b) 1 TB
31. 31.True or false: to open a file means to see what is inside. (a) True (b) False
32. 32.Which shortcut do we press to select all? (a) Ctrl+X (b) Ctrl+V (c) Ctrl+Y (d) Ctrl+A
33. 33.✋ Which can we touch: hardware or software? (a) hardware (b) software
34. 34.Which of these is hardware? (a) a calculator app (b) a computer game (c) a paint program (d) a printer
35. 35.True or false: an operating system is hardware. (a) False (b) True
36. 36.📁 What do we call a folder inside another folder? (a) a printer (b) a subfolder (c) a big file (d) an icon
37. 37.True or false: Ctrl+Z is the shortcut to undo. (a) False (b) True
38. 38.Which file ending is a video? (a) .png (b) .gif (c) .txt (d) .mkv
39. 39.💾 How many MB are there in 2 GB?
40. 40.Which shortcut do we press to redo? (a) Ctrl+V (b) Ctrl+Z (c) Ctrl+P (d) Ctrl+Y

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