Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 488 · 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 keeps photos for years: RAM or storage? (a) storage (b) RAM
2. 2.💡 What is the smallest unit of computer memory? (a) byte (b) bit (c) KB (d) GB
3. 3.💾 Which one loses data when off: RAM or storage? (a) RAM (b) storage
4. 4.📄 A file name ends in .mkv. What is it most likely? (a) a picture (b) a sound (c) a document (d) a video
5. 5.True or false: Ctrl+Z is the shortcut to paste. (a) True (b) False
6. 6.🔌 The power goes off suddenly. Which loses the unsaved work? (a) the pen drive (b) RAM (c) the memory card (d) the hard disk
7. 7.💾 How many MB are there in 3 GB?
8. 8.True or false: a keyboard is an input device. (a) False (b) True
9. 9.Which file ending is a video? (a) .pdf (b) .jpg (c) .avi (d) .mp3
10. 10.Which of these is true of storage (like a hard disk)? (a) keeps data when off (b) is the working memory (c) holds apps that are open (d) loses data when off
11. 11.🧩 Is a paint program hardware or software? (a) hardware (b) software
12. 12.🔍 Which is the odd one out? (a) a pen drive (b) a keyboard (c) a typing tutor (d) a monitor
13. 13.💾 Which one keeps your saved files: RAM or storage? (a) storage (b) RAM
14. 14.💾 Which is bigger: 1 TB or 1 MB? (a) 1 MB (b) 1 TB
15. 15.🔢 A bit can be only 0 or ___. (a) 2 (b) 9 (c) 1 (d) 5
16. 16.Which shortcut do we press to save? (a) Ctrl+X (b) Ctrl+S (c) Ctrl+Y (d) Ctrl+V
17. 17.Which of these is software? (a) a scanner (b) a music player app (c) a hard disk (d) a printer
18. 18.🔍 Which is the odd one out? (a) solid-state drive (b) pen drive (c) hard disk (d) keyboard
19. 19.🏷️ Every file has a ___ so we can find it. (a) taste (b) weight (c) smell (d) name
20. 20.Which shortcut do we press to select all? (a) Ctrl+A (b) Ctrl+Z (c) Ctrl+V (d) Ctrl+X
21. 21.💾 Which is bigger: 1 MB or 1 KB? (a) 1 KB (b) 1 MB
22. 22.🧩 Is a webcam hardware or software? (a) software (b) hardware
23. 23.📄 A file name ends in .wav. What is it most likely? (a) a video (b) a sound (c) a document (d) a picture
24. 24.💾 How many GB are there in 1 TB?
25. 25.Which of these is software? (a) a webcam (b) a computer game (c) a monitor (d) a keyboard
26. 26.Which of these is hardware? (a) a music player app (b) a typing tutor (c) a scanner (d) a word processor
27. 27.Which shortcut do we press to cut? (a) Ctrl+A (b) Ctrl+X (c) Ctrl+V (d) Ctrl+Z
28. 28.💾 Which is smaller: 1 GB or 1 TB? (a) 1 GB (b) 1 TB
29. 29.True or false: a microphone is an output device. (a) False (b) True
30. 30.👩‍💻 What do we call people who write software? (a) farmers (b) programmers (c) plumbers (d) tailors
31. 31.📷 A camera keeps its photos on a small ___. (a) mouse pad (b) memory card (c) keyboard (d) speaker
32. 32.True or false: a web browser is hardware. (a) False (b) True
33. 33.📁 Which word means to “get rid of it” (for a file or folder)? (a) move (b) create (c) open (d) delete
34. 34.Which file ending is a sound? (a) .txt (b) .mkv (c) .wav (d) .gif
35. 35.🧩 Is a printer hardware or software? (a) hardware (b) software
36. 36.True or false: Ctrl+P is the shortcut to print. (a) False (b) True
37. 37.Which of these is an output device? (a) scanner (b) printer (c) solid-state drive (d) hard disk
38. 38.🧩 Is a hard disk hardware or software? (a) hardware (b) software
39. 39.⌨️ In a word processor, what does Ctrl+V do? (a) paste (b) undo (c) print (d) select all
40. 40.True or false: to move a file means to see what is inside. (a) True (b) False

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