Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 519 · 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 the odd one out? (a) a calculator app (b) a word processor (c) a pen drive (d) a paint program
2. 2.Which of these is hardware? (a) a typing tutor (b) an operating system (c) a calculator app (d) a pen drive
3. 3.💾 How many bits are there in 3 bytes?
4. 4.✋ Which can we touch: hardware or software? (a) hardware (b) software
5. 5.🧰 Is a hard disk a storage, input or output device? (a) an output device (b) a storage device (c) an input device
6. 6.Which of these is software? (a) a hard disk (b) a calculator app (c) a webcam (d) a printer
7. 7.👩‍💻 What do we call people who write software? (a) plumbers (b) tailors (c) programmers (d) farmers
8. 8.Which file ending is a document? (a) .png (b) .wav (c) .txt (d) .jpg
9. 9.True or false: Ctrl+P is the shortcut to copy. (a) False (b) True
10. 10.📄 A file name ends in .pdf. What is it most likely? (a) a sound (b) a picture (c) a document (d) a video
11. 11.🔍 Which is the odd one out? (a) keyboard (b) scanner (c) printer (d) mouse
12. 12.📄 A file name ends in .mkv. What is it most likely? (a) a sound (b) a document (c) a video (d) a picture
13. 13.🧩 Is a paint program hardware or software? (a) software (b) hardware
14. 14.💡 What is the smallest unit of computer memory? (a) bit (b) GB (c) byte (d) KB
15. 15.Which shortcut do we press to cut? (a) Ctrl+V (b) Ctrl+X (c) Ctrl+A (d) Ctrl+Z
16. 16.💾 How many MB are there in 1 GB?
17. 17.💾 Which is smaller: 1 byte or 1 TB? (a) 1 TB (b) 1 byte
18. 18.What does it mean to open a file? (a) see what is inside (b) make a brand-new one (c) throw it away (d) get rid of it
19. 19.📷 A camera keeps its photos on a small ___. (a) mouse pad (b) keyboard (c) speaker (d) memory card
20. 20.True or false: storage (like a hard disk) loses data when off. (a) True (b) False
21. 21.Which of these is hardware? (a) an operating system (b) a music player app (c) a monitor (d) a paint program
22. 22.🔍 Which is the odd one out? (a) scanner (b) printer (c) speaker (d) monitor
23. 23.Which of these is true of storage (like a hard disk)? (a) is temporary memory (b) keeps data when off (c) loses data when off (d) is the working memory
24. 24.True or false: Ctrl+Y is the shortcut to redo. (a) True (b) False
25. 25.🧩 Is a music player app hardware or software? (a) software (b) hardware
26. 26.📄 A file name ends in .avi. What is it most likely? (a) a sound (b) a picture (c) a document (d) a video
27. 27.Which file ending is a picture? (a) .mkv (b) .mp3 (c) .jpg (d) .wav
28. 28.Which of these is a storage device? (a) printer (b) projector (c) memory card (d) scanner
29. 29.True or false: to create a file means to make a brand-new one. (a) True (b) False
30. 30.💾 How many MB are there in 3 GB?
31. 31.True or false: a keyboard is hardware. (a) False (b) True
32. 32.True or false: Ctrl+X is the shortcut to print. (a) True (b) False
33. 33.⌨️ In a word processor, what does Ctrl+X do? (a) cut (b) print (c) undo (d) save
34. 34.⌨️ In a word processor, what does Ctrl+Z do? (a) undo (b) save (c) redo (d) copy
35. 35.😮 You deleted a word by mistake. What brings it back? (a) Undo (b) Save (c) Copy (d) Cut
36. 36.🔢 A bit can be only 0 or ___. (a) 2 (b) 9 (c) 5 (d) 1
37. 37.🔍 Which is the odd one out? (a) speaker (b) memory card (c) monitor (d) printer
38. 38.True or false: to rename a file means to give it a new name. (a) True (b) False
39. 39.⌨️ In a word processor, what does Ctrl+V do? (a) copy (b) cut (c) print (d) paste
40. 40.⌨️ In a word processor, what does Ctrl+C do? (a) cut (b) select all (c) undo (d) copy

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