Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 616 · 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 file ending is a video? (a) .jpg (b) .txt (c) .png (d) .mkv
2. 2.📁 What do we call a folder inside another folder? (a) a printer (b) a subfolder (c) an icon (d) a big file
3. 3.Which of these is an input device? (a) hard disk (b) memory card (c) printer (d) scanner
4. 4.💡 What is the smallest unit of computer memory? (a) byte (b) KB (c) GB (d) bit
5. 5.💾 Which is bigger: 1 TB or 1 GB? (a) 1 TB (b) 1 GB
6. 6.Which shortcut do we press to save? (a) Ctrl+V (b) Ctrl+Z (c) Ctrl+S (d) Ctrl+P
7. 7.⌨️ In a word processor, what does Ctrl+X do? (a) print (b) undo (c) select all (d) cut
8. 8.True or false: a pen drive is an input device. (a) False (b) True
9. 9.True or false: a printer is an output device. (a) False (b) True
10. 10.Which file ending is a picture? (a) .avi (b) .mkv (c) .mp4 (d) .png
11. 11.True or false: a keyboard is a storage device. (a) False (b) True
12. 12.True or false: a pen drive is hardware. (a) False (b) True
13. 13.🧩 Is a pen drive hardware or software? (a) hardware (b) software
14. 14.Which of these is software? (a) an operating system (b) a monitor (c) a webcam (d) a pen drive
15. 15.💾 How many bytes are there in 3 KB?
16. 16.📄 A file name ends in .mp3. What is it most likely? (a) a picture (b) a video (c) a document (d) a sound
17. 17.📷 A camera keeps its photos on a small ___. (a) mouse pad (b) keyboard (c) speaker (d) memory card
18. 18.Which of these is true of storage (like a hard disk)? (a) loses data when off (b) keeps data when off (c) is the working memory (d) is temporary memory
19. 19.📄 A file name ends in .avi. What is it most likely? (a) a picture (b) a sound (c) a document (d) a video
20. 20.🧩 Is a paint program hardware or software? (a) hardware (b) software
21. 21.True or false: a keyboard is hardware. (a) True (b) False
22. 22.⌨️ In a word processor, what does Ctrl+Z do? (a) copy (b) undo (c) redo (d) cut
23. 23.💾 How many GB are there in 2 TB?
24. 24.🔍 Which is the odd one out? (a) a webcam (b) a word processor (c) a monitor (d) a keyboard
25. 25.💾 How many MB are there in 1 GB?
26. 26.True or false: Ctrl+S is the shortcut to redo. (a) False (b) True
27. 27.Which of these is an input device? (a) mouse (b) monitor (c) hard disk (d) memory card
28. 28.Which of these is software? (a) a speaker (b) a word processor (c) a mouse (d) a webcam
29. 29.🔢 A bit can be only 0 or ___. (a) 1 (b) 5 (c) 9 (d) 2
30. 30.💾 Which one holds apps that are open: RAM or storage? (a) RAM (b) storage
31. 31.Which of these is software? (a) a mouse (b) a hard disk (c) a printer (d) a computer game
32. 32.True or false: Ctrl+S is the shortcut to cut. (a) False (b) True
33. 33.💾 How many KB are there in 1 MB?
34. 34.True or false: a keyboard is software. (a) False (b) True
35. 35.💾 Which is smaller: 1 KB or 1 byte? (a) 1 byte (b) 1 KB
36. 36.✋ Which can we touch: hardware or software? (a) software (b) hardware
37. 37.💾 Which one loses data when off: RAM or storage? (a) storage (b) RAM
38. 38.⌨️ In a word processor, what does Ctrl+A do? (a) select all (b) undo (c) paste (d) redo
39. 39.💾 Which is bigger: 1 TB or 1 KB? (a) 1 TB (b) 1 KB
40. 40.🧰 Is a monitor a storage, input or output device? (a) a storage device (b) an input device (c) an output device

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