Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 363 · 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.🧩 Is a scanner hardware or software? (a) software (b) hardware
2. 2.True or false: Ctrl+V is the shortcut to copy. (a) False (b) True
3. 3.True or false: a speaker is hardware. (a) True (b) False
4. 4.📄 A file name ends in .png. What is it most likely? (a) a sound (b) a document (c) a picture (d) a video
5. 5.💡 What is the smallest unit of computer memory? (a) bit (b) KB (c) byte (d) GB
6. 6.📄 A file name ends in .gif. What is it most likely? (a) a document (b) a sound (c) a video (d) a picture
7. 7.💾 How many MB are there in 1 GB?
8. 8.Which file ending is a picture? (a) .mp3 (b) .wav (c) .mp4 (d) .gif
9. 9.🔍 Which is the odd one out? (a) printer (b) keyboard (c) monitor (d) speaker
10. 10.True or false: a microphone is a storage device. (a) False (b) True
11. 11.💾 Which is bigger: 1 MB or 1 bit? (a) 1 MB (b) 1 bit
12. 12.🧩 Is a hard disk hardware or software? (a) software (b) hardware
13. 13.💾 How many GB are there in 1 TB?
14. 14.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Copy (b) Redo (c) Delete (d) Cut
15. 15.Which file ending is a picture? (a) .mp3 (b) .jpg (c) .mkv (d) .mp4
16. 16.Which shortcut do we press to save? (a) Ctrl+C (b) Ctrl+A (c) Ctrl+Y (d) Ctrl+S
17. 17.📁 Which word means to “see what is inside” (for a file or folder)? (a) save (b) delete (c) open (d) create
18. 18.⌨️ In a word processor, what does Ctrl+A do? (a) redo (b) select all (c) cut (d) print
19. 19.What does it mean to move a file? (a) keep your work for later (b) make a brand-new one (c) put it in another place (d) see what is inside
20. 20.True or false: a monitor is a storage device. (a) False (b) True
21. 21.💾 Which is bigger: 1 MB or 1 GB? (a) 1 GB (b) 1 MB
22. 22.💾 Which is smaller: 1 TB or 1 GB? (a) 1 TB (b) 1 GB
23. 23.🧰 Is a keyboard a storage, input or output device? (a) an output device (b) an input device (c) a storage device
24. 24.☁️ Saving files on the internet to use from anywhere is called ___. (a) box storage (b) cloud storage (c) paper storage (d) rain storage
25. 25.True or false: a solid-state drive is an output device. (a) False (b) True
26. 26.Which of these is software? (a) a mouse (b) a keyboard (c) a word processor (d) a hard disk
27. 27.True or false: Ctrl+V is the shortcut to redo. (a) False (b) True
28. 28.📄 A file name ends in .mp3. What is it most likely? (a) a picture (b) a document (c) a video (d) a sound
29. 29.⌨️ In a word processor, what does Ctrl+P do? (a) print (b) paste (c) copy (d) redo
30. 30.True or false: Ctrl+Y is the shortcut to redo. (a) True (b) False
31. 31.💾 How many MB are there in 2 GB?
32. 32.🔍 Which is the odd one out? (a) a music player app (b) a hard disk (c) a printer (d) a scanner
33. 33.💾 Which is bigger: 1 byte or 1 bit? (a) 1 bit (b) 1 byte
34. 34.Which of these is software? (a) a printer (b) a computer game (c) a speaker (d) a scanner
35. 35.Which file ending is a sound? (a) .mp4 (b) .pdf (c) .mp3 (d) .txt
36. 36.✋ Which can we touch: hardware or software? (a) hardware (b) software
37. 37.📂 What holds many files together, like a school bag holds books? (a) a mouse (b) a pixel (c) a speaker (d) a folder
38. 38.👩‍💻 What do we call people who write software? (a) tailors (b) farmers (c) plumbers (d) programmers
39. 39.💾 How many bits are there in 3 bytes?
40. 40.Which of these is true of RAM? (a) is temporary memory (b) is permanent storage (c) keeps photos for years (d) keeps your saved files

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