Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 760 · 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.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
2. 2.Which of these is a storage device? (a) pen drive (b) keyboard (c) projector (d) speaker
3. 3.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Copy (b) Cut (c) Delete (d) Redo
4. 4.📋 You want the same sentence in two places. What do you use first? (a) Copy (b) Undo (c) Delete (d) Backspace
5. 5.🧩 Is a webcam hardware or software? (a) software (b) hardware
6. 6.✋ Which can we touch: hardware or software? (a) hardware (b) software
7. 7.🧩 Is a printer hardware or software? (a) hardware (b) software
8. 8.True or false: a speaker is an input device. (a) True (b) False
9. 9.💾 Which is smaller: 1 MB or 1 KB? (a) 1 MB (b) 1 KB
10. 10.Which shortcut do we press to print? (a) Ctrl+P (b) Ctrl+A (c) Ctrl+C (d) Ctrl+X
11. 11.⌨️ In a word processor, what does Ctrl+C do? (a) cut (b) paste (c) redo (d) copy
12. 12.💾 How many bits are there in 7 bytes?
13. 13.🔍 Which is the odd one out? (a) solid-state drive (b) speaker (c) hard disk (d) pen drive
14. 14.⌨️ In a word processor, what does Ctrl+Z do? (a) undo (b) print (c) copy (d) redo
15. 15.💾 Which one is the working memory: RAM or storage? (a) storage (b) RAM
16. 16.Which of these is software? (a) a scanner (b) a monitor (c) a mouse (d) an operating system
17. 17.Which shortcut do we press to redo? (a) Ctrl+A (b) Ctrl+V (c) Ctrl+Y (d) Ctrl+P
18. 18.True or false: a paint program is software. (a) True (b) False
19. 19.Which of these is hardware? (a) a paint program (b) a calculator app (c) a mouse (d) a word processor
20. 20.🧩 Is a mouse hardware or software? (a) software (b) hardware
21. 21.True or false: Ctrl+A is the shortcut to save. (a) True (b) False
22. 22.💾 How many bits are there in 11 bytes?
23. 23.💾 How many GB are there in 1 TB?
24. 24.Which of these is software? (a) a speaker (b) a pen drive (c) a printer (d) a web browser
25. 25.💡 What is the smallest unit of computer memory? (a) KB (b) GB (c) byte (d) bit
26. 26.🔢 A bit can be only 0 or ___. (a) 9 (b) 5 (c) 1 (d) 2
27. 27.💾 Which is smaller: 1 GB or 1 byte? (a) 1 byte (b) 1 GB
28. 28.💾 Which is bigger: 1 byte or 1 GB? (a) 1 GB (b) 1 byte
29. 29.💾 How many bytes are there in 1 KB?
30. 30.⌨️ In a word processor, what does Ctrl+X do? (a) undo (b) cut (c) redo (d) copy
31. 31.Which shortcut do we press to cut? (a) Ctrl+A (b) Ctrl+V (c) Ctrl+Z (d) Ctrl+X
32. 32.📁 Which word means to “change its name” (for a file or folder)? (a) save (b) rename (c) delete (d) open
33. 33.🔍 Which shortcut helps you find a word in a long story? (a) Ctrl+I (b) Ctrl+U (c) Ctrl+B (d) Ctrl+F
34. 34.🧰 Is a keyboard a storage, input or output device? (a) a storage device (b) an output device (c) an input device
35. 35.True or false: to delete a file means to see what is inside. (a) False (b) True
36. 36.Which of these is true of RAM? (a) keeps data when off (b) keeps photos for years (c) keeps your saved files (d) holds apps that are open
37. 37.True or false: to delete a file means to keep your work for later. (a) False (b) True
38. 38.Which of these is true of storage (like a hard disk)? (a) is temporary memory (b) loses data when off (c) keeps your saved files (d) is the working memory
39. 39.📁 Which word means to “get rid of it” (for a file or folder)? (a) delete (b) rename (c) save (d) move
40. 40.🔍 Which is the odd one out? (a) a web browser (b) a music player app (c) a keyboard (d) a computer game

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