Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 762 · 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 bytes are there in 2 KB?
2. 2.💾 How many bits are there in 5 bytes?
3. 3.⌨️ In a word processor, what does Ctrl+C do? (a) copy (b) cut (c) select all (d) paste
4. 4.🔍 Which is the odd one out? (a) pen drive (b) hard disk (c) scanner (d) memory card
5. 5.💾 Which is bigger: 1 TB or 1 GB? (a) 1 GB (b) 1 TB
6. 6.📄 A file name ends in .jpg. What is it most likely? (a) a sound (b) a picture (c) a document (d) a video
7. 7.🧰 Is a microphone a storage, input or output device? (a) a storage device (b) an input device (c) an output device
8. 8.📄 A file name ends in .txt. What is it most likely? (a) a document (b) a sound (c) a video (d) a picture
9. 9.💾 Which one keeps photos for years: RAM or storage? (a) storage (b) RAM
10. 10.💾 How many bits are there in 1 byte?
11. 11.💾 Which one keeps your saved files: RAM or storage? (a) storage (b) RAM
12. 12.⌨️ In a word processor, what does Ctrl+S do? (a) select all (b) paste (c) save (d) redo
13. 13.💡 What is the smallest unit of computer memory? (a) byte (b) KB (c) GB (d) bit
14. 14.🔢 A bit can be only 0 or ___. (a) 1 (b) 2 (c) 5 (d) 9
15. 15.▌ What is the blinking line that shows where you will type? (a) the folder (b) the cursor (c) the icon (d) the toolbar
16. 16.True or false: a keyboard is software. (a) True (b) False
17. 17.True or false: a projector is a storage device. (a) True (b) False
18. 18.Which shortcut do we press to paste? (a) Ctrl+A (b) Ctrl+C (c) Ctrl+P (d) Ctrl+V
19. 19.✋ Which can we touch: hardware or software? (a) hardware (b) software
20. 20.💾 How many bytes are there in 3 KB?
21. 21.🔍 Which is the odd one out? (a) keyboard (b) memory card (c) pen drive (d) hard disk
22. 22.📄 What does a word processor help us do? (a) fly a kite (b) cook food (c) water plants (d) type and edit text
23. 23.💾 Which one keeps data when off: RAM or storage? (a) storage (b) RAM
24. 24.Which of these is an output device? (a) speaker (b) scanner (c) solid-state drive (d) memory card
25. 25.⌨️ In a word processor, what does Ctrl+A do? (a) save (b) paste (c) select all (d) undo
26. 26.True or false: a mouse is software. (a) False (b) True
27. 27.True or false: a keyboard is hardware. (a) True (b) False
28. 28.⌨️ In a word processor, what does Ctrl+V do? (a) paste (b) copy (c) save (d) select all
29. 29.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Copy (b) Cut (c) Delete (d) Redo
30. 30.True or false: RAM keeps photos for years. (a) False (b) True
31. 31.💾 How many MB are there in 2 GB?
32. 32.Which of these is an input device? (a) pen drive (b) monitor (c) memory card (d) mouse
33. 33.True or false: storage (like a hard disk) is the working memory. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) a hard disk (b) a speaker (c) a scanner (d) a word processor
35. 35.🧩 Is a printer hardware or software? (a) hardware (b) software
36. 36.True or false: Ctrl+Y is the shortcut to select all. (a) True (b) False
37. 37.Which of these is true of RAM? (a) keeps data when off (b) keeps your saved files (c) keeps photos for years (d) is temporary memory
38. 38.🧩 Is a word processor hardware or software? (a) hardware (b) software
39. 39.🧩 Is a typing tutor hardware or software? (a) hardware (b) software
40. 40.True or false: to delete a file means to make a brand-new one. (a) True (b) False

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