Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 551 · 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 is smaller: 1 bit or 1 MB? (a) 1 bit (b) 1 MB
2. 2.🔍 Which is the odd one out? (a) memory card (b) scanner (c) keyboard (d) microphone
3. 3.True or false: to create a file means to make a brand-new one. (a) True (b) False
4. 4.💡 What is the smallest unit of computer memory? (a) bit (b) GB (c) KB (d) byte
5. 5.💾 Which one is the working memory: RAM or storage? (a) RAM (b) storage
6. 6.📄 A file name ends in .wav. What is it most likely? (a) a video (b) a document (c) a sound (d) a picture
7. 7.True or false: a printer is an output device. (a) False (b) True
8. 8.💾 Which is smaller: 1 KB or 1 GB? (a) 1 KB (b) 1 GB
9. 9.🧾 Software is a set of ___ for the computer. (a) wires (b) screws (c) buttons (d) instructions
10. 10.True or false: storage (like a hard disk) is temporary memory. (a) False (b) True
11. 11.🔢 A bit can be only 0 or ___. (a) 5 (b) 1 (c) 2 (d) 9
12. 12.Which shortcut do we press to redo? (a) Ctrl+P (b) Ctrl+S (c) Ctrl+Y (d) Ctrl+C
13. 13.🧩 Is a scanner hardware or software? (a) software (b) hardware
14. 14.💾 Which is smaller: 1 KB or 1 bit? (a) 1 KB (b) 1 bit
15. 15.Which file ending is a picture? (a) .jpg (b) .pdf (c) .avi (d) .mp3
16. 16.🔍 Which is the odd one out? (a) a calculator app (b) a music player app (c) a monitor (d) a web browser
17. 17.💾 Which is bigger: 1 MB or 1 bit? (a) 1 MB (b) 1 bit
18. 18.Which of these is software? (a) a word processor (b) a pen drive (c) a printer (d) a mouse
19. 19.📄 A file name ends in .mp3. What is it most likely? (a) a picture (b) a sound (c) a video (d) a document
20. 20.True or false: a pen drive is an input device. (a) True (b) False
21. 21.🧩 Is a paint program hardware or software? (a) hardware (b) software
22. 22.What does it mean to open a file? (a) get rid of it (b) give it a new name (c) see what is inside (d) make an exact twin
23. 23.📁 What do we call a folder inside another folder? (a) a printer (b) an icon (c) a subfolder (d) a big file
24. 24.💾 How many GB are there in 2 TB?
25. 25.🔍 Which is the odd one out? (a) a word processor (b) a scanner (c) a typing tutor (d) a computer game
26. 26.💾 How many bits are there in 10 bytes?
27. 27.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the hard disk (b) the memory card (c) the pen drive (d) RAM
28. 28.💾 How many bits are there in 3 bytes?
29. 29.True or false: a printer is software. (a) True (b) False
30. 30.Which of these is software? (a) a speaker (b) a web browser (c) a printer (d) a monitor
31. 31.▌ What is the blinking line that shows where you will type? (a) the icon (b) the cursor (c) the toolbar (d) the folder
32. 32.True or false: Ctrl+V is the shortcut to paste. (a) True (b) False
33. 33.⌨️ In a word processor, what does Ctrl+Z do? (a) redo (b) copy (c) cut (d) undo
34. 34.Which of these is software? (a) a webcam (b) a music player app (c) a monitor (d) a hard disk
35. 35.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Copy (b) Delete (c) Cut (d) Redo
36. 36.💾 Which is smaller: 1 byte or 1 bit? (a) 1 byte (b) 1 bit
37. 37.What does it mean to rename a file? (a) throw it away (b) get rid of it (c) change its name (d) keep your work for later
38. 38.⌨️ In a word processor, what does Ctrl+A do? (a) redo (b) save (c) cut (d) select all
39. 39.🔍 Which is the odd one out? (a) a keyboard (b) a web browser (c) a typing tutor (d) a word processor
40. 40.💾 Which one keeps data when off: RAM or storage? (a) storage (b) RAM

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