Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 13 · 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.📋 You want the same sentence in two places. What do you use first? (a) Delete (b) Copy (c) Undo (d) Backspace
2. 2.True or false: storage (like a hard disk) holds apps that are open. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) monitor (b) printer (c) projector (d) hard disk
4. 4.🧩 Is a computer game hardware or software? (a) hardware (b) software
5. 5.🧰 Is a monitor a storage, input or output device? (a) a storage device (b) an output device (c) an input device
6. 6.Which of these is hardware? (a) a printer (b) a word processor (c) a computer game (d) a calculator app
7. 7.🔍 Which is the odd one out? (a) a printer (b) a monitor (c) a mouse (d) a paint program
8. 8.💡 What is the smallest unit of computer memory? (a) bit (b) KB (c) byte (d) GB
9. 9.⌨️ In a word processor, what does Ctrl+S do? (a) print (b) paste (c) copy (d) save
10. 10.🧾 Software is a set of ___ for the computer. (a) wires (b) screws (c) buttons (d) instructions
11. 11.🧰 Is a projector a storage, input or output device? (a) an input device (b) a storage device (c) an output device
12. 12.True or false: a projector is a storage device. (a) True (b) False
13. 13.Which shortcut do we press to select all? (a) Ctrl+C (b) Ctrl+V (c) Ctrl+Y (d) Ctrl+A
14. 14.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the hard disk (b) RAM (c) the pen drive (d) the memory card
15. 15.📁 Which word means to “make a brand-new one” (for a file or folder)? (a) save (b) delete (c) create (d) move
16. 16.Which file ending is a sound? (a) .mp4 (b) .mkv (c) .mp3 (d) .txt
17. 17.🔢 A bit can be only 0 or ___. (a) 5 (b) 9 (c) 1 (d) 2
18. 18.Which of these is hardware? (a) a web browser (b) a paint program (c) a webcam (d) a word processor
19. 19.Which shortcut do we press to paste? (a) Ctrl+V (b) Ctrl+A (c) Ctrl+X (d) Ctrl+Y
20. 20.What does it mean to rename a file? (a) keep your work for later (b) make an exact twin (c) give it a new name (d) store your work
21. 21.☁️ Saving files on the internet to use from anywhere is called ___. (a) cloud storage (b) rain storage (c) box storage (d) paper storage
22. 22.💾 Which is bigger: 1 GB or 1 KB? (a) 1 KB (b) 1 GB
23. 23.📄 A file name ends in .png. What is it most likely? (a) a document (b) a video (c) a picture (d) a sound
24. 24.True or false: a calculator app is software. (a) False (b) True
25. 25.Which of these is true of storage (like a hard disk)? (a) keeps your saved files (b) loses data when off (c) is the working memory (d) is temporary memory
26. 26.True or false: to move a file means to throw it away. (a) True (b) False
27. 27.True or false: a hard disk is a storage device. (a) True (b) False
28. 28.True or false: Ctrl+A is the shortcut to print. (a) False (b) True
29. 29.📁 Which word means to “get rid of it” (for a file or folder)? (a) delete (b) save (c) open (d) rename
30. 30.💾 Which one keeps data when off: RAM or storage? (a) RAM (b) storage
31. 31.Which of these is hardware? (a) an operating system (b) a web browser (c) a mouse (d) a word processor
32. 32.What does it mean to copy a file? (a) make an exact twin (b) store your work (c) give it a new name (d) change its name
33. 33.Which file ending is a sound? (a) .png (b) .txt (c) .wav (d) .gif
34. 34.What does it mean to save a file? (a) change its name (b) throw it away (c) store your work (d) see what is inside
35. 35.📁 Which word means to “store your work” (for a file or folder)? (a) create (b) rename (c) save (d) move
36. 36.True or false: storage (like a hard disk) is permanent storage. (a) True (b) False
37. 37.Which of these is an output device? (a) solid-state drive (b) hard disk (c) memory card (d) printer
38. 38.🔍 Which is the odd one out? (a) a typing tutor (b) a computer game (c) a web browser (d) a printer
39. 39.Which of these is hardware? (a) a paint program (b) a web browser (c) a speaker (d) a computer game
40. 40.🔍 Which is the odd one out? (a) a speaker (b) a pen drive (c) a monitor (d) a music player app

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