Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 135 · 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.💾 How many bits are there in 6 bytes?
2. 2.True or false: Ctrl+C is the shortcut to copy. (a) True (b) False
3. 3.💾 Which is smaller: 1 KB or 1 TB? (a) 1 KB (b) 1 TB
4. 4.🔢 A bit can be only 0 or ___. (a) 5 (b) 2 (c) 1 (d) 9
5. 5.💾 Which is smaller: 1 GB or 1 MB? (a) 1 GB (b) 1 MB
6. 6.⌨️ In a word processor, what does Ctrl+C do? (a) cut (b) select all (c) redo (d) copy
7. 7.Which of these is an input device? (a) monitor (b) pen drive (c) printer (d) scanner
8. 8.True or false: to delete a file means to get rid of it. (a) True (b) False
9. 9.👩‍💻 What do we call people who write software? (a) farmers (b) plumbers (c) programmers (d) tailors
10. 10.🧾 Software is a set of ___ for the computer. (a) buttons (b) wires (c) screws (d) instructions
11. 11.True or false: a speaker is hardware. (a) False (b) True
12. 12.🧰 Is a keyboard a storage, input or output device? (a) an output device (b) an input device (c) a storage device
13. 13.Which shortcut do we press to copy? (a) Ctrl+A (b) Ctrl+V (c) Ctrl+S (d) Ctrl+C
14. 14.📂 What holds many files together, like a school bag holds books? (a) a mouse (b) a pixel (c) a folder (d) a speaker
15. 15.True or false: Ctrl+C is the shortcut to paste. (a) True (b) False
16. 16.Which file ending is a sound? (a) .wav (b) .mp4 (c) .png (d) .avi
17. 17.🧩 Is a webcam hardware or software? (a) software (b) hardware
18. 18.True or false: Ctrl+C is the shortcut to save. (a) True (b) False
19. 19.💾 Which one loses data when off: RAM or storage? (a) storage (b) RAM
20. 20.True or false: a music player app is hardware. (a) True (b) False
21. 21.💾 Which is smaller: 1 MB or 1 GB? (a) 1 MB (b) 1 GB
22. 22.True or false: to create a file means to store your work. (a) False (b) True
23. 23.💾 How many KB are there in 3 MB?
24. 24.Which of these is true of storage (like a hard disk)? (a) holds apps that are open (b) keeps data when off (c) loses data when off (d) is the working memory
25. 25.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+F (b) Ctrl+I (c) Ctrl+B (d) Ctrl+U
26. 26.True or false: a speaker is a storage device. (a) True (b) False
27. 27.🔌 The power goes off suddenly. Which loses the unsaved work? (a) RAM (b) the memory card (c) the pen drive (d) the hard disk
28. 28.🔍 Which is the odd one out? (a) microphone (b) memory card (c) keyboard (d) scanner
29. 29.💾 Which is smaller: 1 byte or 1 TB? (a) 1 TB (b) 1 byte
30. 30.📷 A camera keeps its photos on a small ___. (a) mouse pad (b) memory card (c) speaker (d) keyboard
31. 31.💾 Which is bigger: 1 MB or 1 byte? (a) 1 MB (b) 1 byte
32. 32.True or false: a hard disk is software. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) monitor (b) pen drive (c) hard disk (d) memory card
34. 34.True or false: Ctrl+S is the shortcut to save. (a) True (b) False
35. 35.💾 Which is bigger: 1 TB or 1 GB? (a) 1 GB (b) 1 TB
36. 36.💾 Which is bigger: 1 TB or 1 MB? (a) 1 TB (b) 1 MB
37. 37.Which shortcut do we press to paste? (a) Ctrl+Y (b) Ctrl+X (c) Ctrl+V (d) Ctrl+A
38. 38.📄 A file name ends in .pdf. What is it most likely? (a) a picture (b) a video (c) a document (d) a sound
39. 39.Which of these is true of storage (like a hard disk)? (a) is temporary memory (b) loses data when off (c) is the working memory (d) keeps photos for years
40. 40.True or false: Ctrl+Y is the shortcut to cut. (a) False (b) True

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