Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 143 · 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.💡 What is the smallest unit of computer memory? (a) bit (b) KB (c) GB (d) byte
2. 2.What does it mean to open a file? (a) give it a new name (b) put it in another place (c) see what is inside (d) store your work
3. 3.🔍 Which is the odd one out? (a) a keyboard (b) a hard disk (c) a music player app (d) a mouse
4. 4.💾 How many bytes are there in 2 KB?
5. 5.Which of these is true of RAM? (a) keeps your saved files (b) is permanent storage (c) keeps photos for years (d) is temporary memory
6. 6.Which of these is true of RAM? (a) keeps data when off (b) is the working memory (c) keeps your saved files (d) keeps photos for years
7. 7.💾 How many MB are there in 3 GB?
8. 8.Which of these is hardware? (a) a calculator app (b) a printer (c) a computer game (d) a music player app
9. 9.True or false: Ctrl+V is the shortcut to paste. (a) False (b) True
10. 10.📁 What do we call a folder inside another folder? (a) a printer (b) a big file (c) an icon (d) a subfolder
11. 11.True or false: a pen drive is software. (a) True (b) False
12. 12.🧩 Is a word processor hardware or software? (a) hardware (b) software
13. 13.Which of these is hardware? (a) a monitor (b) a music player app (c) a paint program (d) a calculator app
14. 14.Which file ending is a document? (a) .mkv (b) .png (c) .mp3 (d) .txt
15. 15.💾 Which is bigger: 1 TB or 1 MB? (a) 1 TB (b) 1 MB
16. 16.Which of these is an output device? (a) solid-state drive (b) scanner (c) keyboard (d) printer
17. 17.🔢 A bit can be only 0 or ___. (a) 9 (b) 2 (c) 1 (d) 5
18. 18.⌨️ In a word processor, what does Ctrl+X do? (a) select all (b) cut (c) copy (d) paste
19. 19.⌨️ In a word processor, what does Ctrl+V do? (a) cut (b) save (c) undo (d) paste
20. 20.✋ Which can we touch: hardware or software? (a) software (b) hardware
21. 21.💾 Which is bigger: 1 bit or 1 GB? (a) 1 bit (b) 1 GB
22. 22.True or false: Ctrl+X is the shortcut to paste. (a) True (b) False
23. 23.🧩 Is a printer hardware or software? (a) software (b) hardware
24. 24.True or false: a hard disk is software. (a) False (b) True
25. 25.💾 How many bits are there in 3 bytes?
26. 26.True or false: to rename a file means to make an exact twin. (a) True (b) False
27. 27.📄 A file name ends in .txt. What is it most likely? (a) a picture (b) a sound (c) a document (d) a video
28. 28.True or false: a printer is hardware. (a) True (b) False
29. 29.True or false: Ctrl+Y is the shortcut to redo. (a) False (b) True
30. 30.What does it mean to create a file? (a) make a brand-new one (b) throw it away (c) keep your work for later (d) give it a new name
31. 31.📄 A file name ends in .avi. What is it most likely? (a) a document (b) a sound (c) a picture (d) a video
32. 32.✂️ You want to move a sentence to the end. What do you use first? (a) Cut (b) Undo (c) Print (d) Delete
33. 33.💾 Which one is permanent storage: RAM or storage? (a) storage (b) RAM
34. 34.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
35. 35.💾 How many MB are there in 2 GB?
36. 36.💾 How many GB are there in 1 TB?
37. 37.True or false: Ctrl+P is the shortcut to print. (a) False (b) True
38. 38.💾 How many MB are there in 1 GB?
39. 39.⚡ Which is faster for the computer to work with? (a) RAM (b) a memory card (c) a pen drive (d) a printer
40. 40.💾 Which is smaller: 1 KB or 1 bit? (a) 1 KB (b) 1 bit

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