Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 307 · 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.🔢 A bit can be only 0 or ___. (a) 2 (b) 5 (c) 1 (d) 9
2. 2.True or false: a mouse is software. (a) True (b) False
3. 3.📄 A file name ends in .mp3. What is it most likely? (a) a document (b) a video (c) a picture (d) a sound
4. 4.Which of these is an output device? (a) memory card (b) scanner (c) monitor (d) hard disk
5. 5.💾 Which one keeps your saved files: RAM or storage? (a) RAM (b) storage
6. 6.💾 How many bytes are there in 2 KB?
7. 7.💾 How many GB are there in 2 TB?
8. 8.🧰 Is a mouse a storage, input or output device? (a) a storage device (b) an output device (c) an input device
9. 9.🔍 Which is the odd one out? (a) pen drive (b) memory card (c) solid-state drive (d) mouse
10. 10.📷 A camera keeps its photos on a small ___. (a) keyboard (b) speaker (c) mouse pad (d) memory card
11. 11.💾 Which is bigger: 1 GB or 1 TB? (a) 1 GB (b) 1 TB
12. 12.💾 Which is bigger: 1 MB or 1 bit? (a) 1 bit (b) 1 MB
13. 13.What does it mean to create a file? (a) give it a new name (b) put it in another place (c) change its name (d) make a brand-new one
14. 14.What does it mean to delete a file? (a) give it a new name (b) throw it away (c) make an exact twin (d) make a brand-new one
15. 15.True or false: storage (like a hard disk) keeps photos for years. (a) False (b) True
16. 16.True or false: to save a file means to store your work. (a) True (b) False
17. 17.Which of these is hardware? (a) a calculator app (b) a paint program (c) a speaker (d) a word processor
18. 18.📄 A file name ends in .mp4. What is it most likely? (a) a video (b) a sound (c) a picture (d) a document
19. 19.💾 Which is bigger: 1 GB or 1 byte? (a) 1 GB (b) 1 byte
20. 20.😮 You deleted a word by mistake. What brings it back? (a) Save (b) Undo (c) Copy (d) Cut
21. 21.Which shortcut do we press to copy? (a) Ctrl+Y (b) Ctrl+C (c) Ctrl+V (d) Ctrl+X
22. 22.Which of these is true of storage (like a hard disk)? (a) loses data when off (b) is the working memory (c) is temporary memory (d) keeps photos for years
23. 23.True or false: Ctrl+Z is the shortcut to undo. (a) False (b) True
24. 24.📁 What do we call a folder inside another folder? (a) a big file (b) an icon (c) a printer (d) a subfolder
25. 25.💾 Which is smaller: 1 KB or 1 byte? (a) 1 KB (b) 1 byte
26. 26.⌨️ In a word processor, what does Ctrl+V do? (a) undo (b) save (c) paste (d) cut
27. 27.📂 What holds many files together, like a school bag holds books? (a) a speaker (b) a mouse (c) a folder (d) a pixel
28. 28.💡 What is the smallest unit of computer memory? (a) GB (b) byte (c) KB (d) bit
29. 29.True or false: a keyboard is hardware. (a) True (b) False
30. 30.📄 A file name ends in .gif. What is it most likely? (a) a picture (b) a video (c) a document (d) a sound
31. 31.🧩 Is a keyboard hardware or software? (a) software (b) hardware
32. 32.💾 Which one holds apps that are open: RAM or storage? (a) RAM (b) storage
33. 33.💾 Which is bigger: 1 KB or 1 bit? (a) 1 bit (b) 1 KB
34. 34.True or false: a web browser is hardware. (a) True (b) False
35. 35.🧰 Is a keyboard a storage, input or output device? (a) an input device (b) a storage device (c) an output device
36. 36.💾 Which is smaller: 1 bit or 1 byte? (a) 1 bit (b) 1 byte
37. 37.💾 Which is smaller: 1 bit or 1 TB? (a) 1 bit (b) 1 TB
38. 38.📄 What does a word processor help us do? (a) fly a kite (b) cook food (c) type and edit text (d) water plants
39. 39.🧩 Is a mouse hardware or software? (a) hardware (b) software
40. 40.💾 Which one keeps photos for years: RAM or storage? (a) RAM (b) storage

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