Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 270 · 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.True or false: to copy a file means to change its name. (a) True (b) False
2. 2.💡 What is the smallest unit of computer memory? (a) KB (b) GB (c) byte (d) bit
3. 3.True or false: Ctrl+S is the shortcut to print. (a) False (b) True
4. 4.⌨️ In a word processor, what does Ctrl+X do? (a) undo (b) save (c) cut (d) copy
5. 5.True or false: to open a file means to change its name. (a) False (b) True
6. 6.Which of these is an output device? (a) printer (b) pen drive (c) scanner (d) memory card
7. 7.💾 Which one keeps photos for years: RAM or storage? (a) RAM (b) storage
8. 8.Which of these is hardware? (a) a music player app (b) a word processor (c) a calculator app (d) a scanner
9. 9.What does it mean to delete a file? (a) make an exact twin (b) keep your work for later (c) throw it away (d) store your work
10. 10.🔍 Which is the odd one out? (a) a paint program (b) a printer (c) a hard disk (d) a mouse
11. 11.💾 How many bits are there in 8 bytes?
12. 12.Which of these is software? (a) a keyboard (b) a mouse (c) a computer game (d) a monitor
13. 13.True or false: a projector is an output device. (a) True (b) False
14. 14.Which of these is true of storage (like a hard disk)? (a) is the working memory (b) keeps photos for years (c) loses data when off (d) holds apps that are open
15. 15.📷 A camera keeps its photos on a small ___. (a) keyboard (b) mouse pad (c) speaker (d) memory card
16. 16.🔍 Which is the odd one out? (a) monitor (b) microphone (c) mouse (d) keyboard
17. 17.💾 How many bits are there in 7 bytes?
18. 18.True or false: a music player app is hardware. (a) False (b) True
19. 19.True or false: RAM is temporary memory. (a) False (b) True
20. 20.🔢 A bit can be only 0 or ___. (a) 5 (b) 9 (c) 1 (d) 2
21. 21.💾 Which one loses data when off: RAM or storage? (a) RAM (b) storage
22. 22.What does it mean to rename a file? (a) make a brand-new one (b) give it a new name (c) store your work (d) put it in another place
23. 23.🔍 Which is the odd one out? (a) memory card (b) mouse (c) pen drive (d) solid-state drive
24. 24.💾 How many GB are there in 2 TB?
25. 25.True or false: a keyboard is software. (a) True (b) False
26. 26.True or false: a monitor is an input device. (a) True (b) False
27. 27.💾 How many bytes are there in 1 KB?
28. 28.⌨️ In a word processor, what does Ctrl+C do? (a) copy (b) print (c) cut (d) redo
29. 29.Which of these is true of storage (like a hard disk)? (a) keeps data when off (b) loses data when off (c) is the working memory (d) is temporary memory
30. 30.Which shortcut do we press to cut? (a) Ctrl+C (b) Ctrl+Y (c) Ctrl+X (d) Ctrl+V
31. 31.Which shortcut do we press to undo? (a) Ctrl+Z (b) Ctrl+V (c) Ctrl+Y (d) Ctrl+A
32. 32.🧩 Is a mouse hardware or software? (a) software (b) hardware
33. 33.💾 Which is bigger: 1 bit or 1 KB? (a) 1 KB (b) 1 bit
34. 34.💾 Which is smaller: 1 bit or 1 KB? (a) 1 bit (b) 1 KB
35. 35.Which of these is hardware? (a) a paint program (b) a calculator app (c) a web browser (d) a pen drive
36. 36.📄 A file name ends in .png. What is it most likely? (a) a video (b) a sound (c) a document (d) a picture
37. 37.Which of these is hardware? (a) a paint program (b) a mouse (c) a web browser (d) an operating system
38. 38.⌨️ In a word processor, what does Ctrl+S do? (a) cut (b) redo (c) undo (d) save
39. 39.True or false: a pen drive is hardware. (a) False (b) True
40. 40.✂️ You want to move a sentence to the end. What do you use first? (a) Print (b) Undo (c) Delete (d) Cut

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