Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 62 · 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: Ctrl+C is the shortcut to copy. (a) False (b) True
2. 2.🧩 Is a speaker hardware or software? (a) software (b) hardware
3. 3.True or false: a pen drive is hardware. (a) True (b) False
4. 4.Which of these is true of RAM? (a) holds apps that are open (b) keeps your saved files (c) is permanent storage (d) keeps data when off
5. 5.True or false: a scanner is an input device. (a) False (b) True
6. 6.Which of these is true of storage (like a hard disk)? (a) is the working memory (b) loses data when off (c) holds apps that are open (d) keeps photos for years
7. 7.↩️ You pressed Undo by mistake. Which command puts the change back? (a) Cut (b) Copy (c) Delete (d) Redo
8. 8.True or false: a printer is software. (a) False (b) True
9. 9.Which shortcut do we press to save? (a) Ctrl+A (b) Ctrl+C (c) Ctrl+Z (d) Ctrl+S
10. 10.✋ Which can we touch: hardware or software? (a) hardware (b) software
11. 11.🧰 Is a microphone a storage, input or output device? (a) an output device (b) a storage device (c) an input device
12. 12.💾 How many KB are there in 3 MB?
13. 13.👩‍💻 What do we call people who write software? (a) plumbers (b) farmers (c) programmers (d) tailors
14. 14.Which of these is software? (a) a keyboard (b) an operating system (c) a monitor (d) a scanner
15. 15.Which file ending is a picture? (a) .pdf (b) .avi (c) .mkv (d) .jpg
16. 16.🔍 Which is the odd one out? (a) pen drive (b) solid-state drive (c) memory card (d) monitor
17. 17.True or false: Ctrl+A is the shortcut to select all. (a) True (b) False
18. 18.🔢 A bit can be only 0 or ___. (a) 2 (b) 5 (c) 1 (d) 9
19. 19.💡 What is the smallest unit of computer memory? (a) GB (b) KB (c) byte (d) bit
20. 20.📄 A file name ends in .pdf. What is it most likely? (a) a document (b) a sound (c) a picture (d) a video
21. 21.⌨️ In a word processor, what does Ctrl+S do? (a) print (b) copy (c) save (d) undo
22. 22.What does it mean to open a file? (a) see what is inside (b) make an exact twin (c) keep your work for later (d) get rid of it
23. 23.Which of these is software? (a) a keyboard (b) a webcam (c) a calculator app (d) a monitor
24. 24.True or false: to save a file means to put it in another place. (a) True (b) False
25. 25.💾 Which one keeps your saved files: RAM or storage? (a) RAM (b) storage
26. 26.🔍 Which is the odd one out? (a) a keyboard (b) a web browser (c) a music player app (d) a calculator app
27. 27.🧩 Is a computer game hardware or software? (a) software (b) hardware
28. 28.📄 A file name ends in .avi. What is it most likely? (a) a document (b) a video (c) a sound (d) a picture
29. 29.True or false: Ctrl+X is the shortcut to undo. (a) True (b) False
30. 30.Which shortcut do we press to undo? (a) Ctrl+S (b) Ctrl+A (c) Ctrl+Z (d) Ctrl+V
31. 31.True or false: to create a file means to throw it away. (a) False (b) True
32. 32.⌨️ In a word processor, what does Ctrl+Y do? (a) undo (b) redo (c) cut (d) paste
33. 33.💾 How many bits are there in 8 bytes?
34. 34.🔍 Which is the odd one out? (a) pen drive (b) mouse (c) memory card (d) solid-state drive
35. 35.Which of these is hardware? (a) a calculator app (b) a paint program (c) a printer (d) a typing tutor
36. 36.What does it mean to save a file? (a) see what is inside (b) make an exact twin (c) put it in another place (d) store your work
37. 37.⌨️ In a word processor, what does Ctrl+P do? (a) save (b) redo (c) copy (d) print
38. 38.📁 Which word means to “throw it away” (for a file or folder)? (a) create (b) move (c) delete (d) copy
39. 39.🧩 Is a webcam hardware or software? (a) hardware (b) software
40. 40.💾 Which is bigger: 1 GB or 1 TB? (a) 1 GB (b) 1 TB

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