Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 511 · 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 web browser hardware or software? (a) software (b) hardware
2. 2.🔍 Which is the odd one out? (a) scanner (b) keyboard (c) speaker (d) mouse
3. 3.🔍 Which is the odd one out? (a) solid-state drive (b) memory card (c) hard disk (d) microphone
4. 4.🔍 Which is the odd one out? (a) a word processor (b) a music player app (c) a scanner (d) an operating system
5. 5.Which file ending is a sound? (a) .gif (b) .avi (c) .png (d) .mp3
6. 6.📄 A file name ends in .mp4. What is it most likely? (a) a picture (b) a document (c) a video (d) a sound
7. 7.💡 What is the smallest unit of computer memory? (a) KB (b) byte (c) GB (d) bit
8. 8.🧩 Is a webcam hardware or software? (a) software (b) hardware
9. 9.True or false: Ctrl+A is the shortcut to save. (a) False (b) True
10. 10.📁 Which word means to “give it a new name” (for a file or folder)? (a) save (b) create (c) rename (d) delete
11. 11.True or false: storage (like a hard disk) loses data when off. (a) True (b) False
12. 12.Which of these is true of RAM? (a) keeps data when off (b) is permanent storage (c) is the working memory (d) keeps your saved files
13. 13.🔢 A bit can be only 0 or ___. (a) 5 (b) 1 (c) 2 (d) 9
14. 14.💾 Which one keeps your saved files: RAM or storage? (a) RAM (b) storage
15. 15.Which of these is a storage device? (a) monitor (b) pen drive (c) printer (d) mouse
16. 16.📁 What do we call a folder inside another folder? (a) a big file (b) an icon (c) a subfolder (d) a printer
17. 17.💾 Which is bigger: 1 GB or 1 bit? (a) 1 GB (b) 1 bit
18. 18.Which of these is hardware? (a) a mouse (b) a computer game (c) a word processor (d) a calculator app
19. 19.True or false: Ctrl+Z is the shortcut to cut. (a) True (b) False
20. 20.📄 A file name ends in .pdf. What is it most likely? (a) a picture (b) a document (c) a sound (d) a video
21. 21.😮 You deleted a word by mistake. What brings it back? (a) Cut (b) Save (c) Copy (d) Undo
22. 22.True or false: to rename a file means to give it a new name. (a) True (b) False
23. 23.✂️ You want to move a sentence to the end. What do you use first? (a) Cut (b) Undo (c) Delete (d) Print
24. 24.Which of these is hardware? (a) a webcam (b) a calculator app (c) a paint program (d) a web browser
25. 25.💾 Which is bigger: 1 bit or 1 byte? (a) 1 byte (b) 1 bit
26. 26.What does it mean to move a file? (a) keep your work for later (b) get rid of it (c) see what is inside (d) put it in another place
27. 27.👩‍💻 What do we call people who write software? (a) tailors (b) plumbers (c) programmers (d) farmers
28. 28.Which file ending is a picture? (a) .mkv (b) .png (c) .txt (d) .pdf
29. 29.📄 A file name ends in .txt. What is it most likely? (a) a sound (b) a document (c) a video (d) a picture
30. 30.Which shortcut do we press to cut? (a) Ctrl+Z (b) Ctrl+P (c) Ctrl+X (d) Ctrl+V
31. 31.Which of these is true of RAM? (a) is permanent storage (b) loses data when off (c) keeps your saved files (d) keeps photos for years
32. 32.💾 How many KB are there in 2 MB?
33. 33.💾 Which one holds apps that are open: RAM or storage? (a) RAM (b) storage
34. 34.What does it mean to save a file? (a) change its name (b) store your work (c) put it in another place (d) throw it away
35. 35.☁️ Saving files on the internet to use from anywhere is called ___. (a) cloud storage (b) rain storage (c) box storage (d) paper storage
36. 36.📄 What does a word processor help us do? (a) fly a kite (b) water plants (c) type and edit text (d) cook food
37. 37.📂 What holds many files together, like a school bag holds books? (a) a speaker (b) a folder (c) a pixel (d) a mouse
38. 38.💾 Which is smaller: 1 KB or 1 GB? (a) 1 GB (b) 1 KB
39. 39.⌨️ In a word processor, what does Ctrl+A do? (a) select all (b) redo (c) print (d) paste
40. 40.🔌 The power goes off suddenly. Which loses the unsaved work? (a) RAM (b) the memory card (c) the hard disk (d) the pen drive

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